CN202587596U - Wiring substrate, cell stack and ambipolar secondary cell - Google Patents

Wiring substrate, cell stack and ambipolar secondary cell Download PDF

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Publication number
CN202587596U
CN202587596U CN2011203265792U CN201120326579U CN202587596U CN 202587596 U CN202587596 U CN 202587596U CN 2011203265792 U CN2011203265792 U CN 2011203265792U CN 201120326579 U CN201120326579 U CN 201120326579U CN 202587596 U CN202587596 U CN 202587596U
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China
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tooth
wiring substrate
mentioned
terminal
conductive part
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CN2011203265792U
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Chinese (zh)
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堀江英明
三木文博
井上志保
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The utility model provides a wiring substrate, a cell stack and an ambipolar secondary cell, which can make installation positions of terminal parts to current collectors be same among a plurality of single cells. The distribution substrate comprises an insulation substrate (26) which is formed by a comb-shaped part (21f) and a handle (21g) in connection with the comb-shaped part (21f), wherein the comb-shaped part (21f) is formed by a plurality of teeth (21a,21b,21c,21d) and a main part (21e) bunching the teeth; a plurality of wirings (22,23,24,25) which are formed on the insulation substrate (26) by conductive materials and respectively extend from each front end of the plurality of teeth to the end part of the handle to make electric conductor potential in contact with the front ends of the plurality of teeth conduct to the end of the handle; and terminal parts (22a,23a,24a,25a) which make the conductive materials expose to the front ends of the teeth and make the lengths of the plurality of teeth different.

Description

Wiring substrate, battery pile and ambipolar secondary cell
Technical field
The utility model relates to wiring substrate, battery pile and ambipolar secondary cell.
Background technology
In the laminate-type battery, there are fluctuation in its internal resistance or capacity etc. because each monocell is owing to make fluctuation, so when monocell is connected in series, there is fluctuation in the voltage of each monocell.Begin and produce to worsen from the bigger monocell of this voltage fluctuation, thereby be restricted as the life-span of laminate-type battery.Therefore, hope to measure the voltage of each monocell,, make the voltage of whole monocells identical through control the voltage of each monocell according to this measurement result.
Therefore, known voltage for each monocell of measuring laminate-type battery (ambipolar secondary cell), and the wiring substrate of flexible (having flexibility) is installed on each collector body is with the voltage of each monocell technology (with reference to patent documentation 1) to outside output
Patent documentation 1: TOHKEMY 2008-160060 communique
The utility model content
Above-mentioned wiring substrate has: insulated substrate, and it is made up of with a handle that is connected with this pectination position the pectination position, and this pectination position becomes one by a plurality of teeth with these a plurality of tooth boundlings trunk constitutes; Many distributions, it is formed on this insulated substrate by electric conducting material, extends to the end of handle respectively from the front end separately of above-mentioned a plurality of teeth, makes the end that conducts to above-mentioned handle with the current potential of the electric conductor of the preceding end in contact of above-mentioned a plurality of teeth.Have and make electric conducting material, this portion of terminal is installed on the corresponding collector body in the portion of terminal that the front end of a plurality of teeth exposes.
But; In above-mentioned wiring substrate; Because the thickness of a plurality of teeth, length, portion of terminal area, and portion of terminal and all identical with bonding force between the corresponding collector body of this portion of terminal; So make portion of terminal with from the end of two lip-deep electrode active materials up and down of being arranged on collector body away from the collector body of the position of same distance bonding after, the relax level of a plurality of teeth is different.Therefore, using under the environment that vibration takes place under the situation of laminate-type battery, comparing, do not having the relatively large tensile stress of effect on the lax tooth relatively with lax relatively tooth.Have in effect on the tooth of this relatively large tensile stress, have the tooth of less relatively tensile stress to compare with effect, the possibility that broken string takes place on portion of terminal is higher.If on wiring substrate, break, then can't measure the voltage of whole monocell layers accurately.
Therefore, the utility model purpose is to provide a kind of wiring substrate, battery pile and ambipolar secondary cell, and it can reduce to act on the tensile stress on tooth or the handle.
The utlity model has: insulated substrate, it is made up of with a handle that is connected with this pectination position the pectination position, and this pectination position becomes one by a plurality of teeth with these a plurality of tooth boundlings trunk constitutes; Many distributions; It is formed on this insulated substrate by electric conducting material; Extend to the end of above-mentioned handle respectively from the front end separately of above-mentioned a plurality of teeth; Make the end that conducts to above-mentioned handle with the current potential of the electric conductor of the preceding end in contact of above-mentioned a plurality of teeth, have the portion of terminal of exposing electric conducting material at the front end of above-mentioned a plurality of teeth, make the thickness of above-mentioned a plurality of teeth different.
The second aspect of the utility model relates to a kind of battery pile; It forms positive pole through making on a surface of a collector body, and is at two bipolar electrodes of opposite surfaces formation negative pole, anodal range upon range of across electrolyte with negative pole mode respect to one another according to making; Formation is by the monocell that constitutes across electrolytical positive pole and negative pole; This monocell is connected in series a plurality of and constitutes battery pile, be used for the wiring substrate of the voltage detecting of above-mentioned a plurality of monocells, comprise following part and constitute: insulated substrate; It is made up of a pectination position and a connected handle, and this pectination position becomes one by a plurality of teeth with these a plurality of tooth boundlings trunk constitutes; Many distributions, it is formed on this insulated substrate by electric conducting material, extends to the end of above-mentioned handle respectively from the front end separately of above-mentioned a plurality of teeth, makes the end that conducts to above-mentioned handle with the current potential of the electric conductor of the preceding end in contact of above-mentioned a plurality of teeth; And portion of terminal; It makes electric conducting material expose to the front end of above-mentioned a plurality of teeth; Above-mentioned a plurality of portion of terminal are installed to respectively on the corresponding collector body; It is characterized in that, be installed in thickness in above-mentioned a plurality of teeth, be coarser than and be installed in the thickness that is positioned at the 1st reference position or is positioned at the tooth near the collector body the 1st reference position away from the tooth on the collector body of the position of predefined the 1st reference position.
The third aspect of the utility model relates to a kind of ambipolar secondary cell; It is with above-mentioned battery pile a plurality of the forming that be connected in series, and it is characterized in that, in above-mentioned a plurality of wiring substrates; Away from the wiring substrate of predefined the 2nd reference position, the thickness of the handle of wiring substrate is thick more.
The effect of utility model
According to the utility model; When on wiring substrate, being installed on the battery pile; With respect to a plurality of monocells, under the situation of the same position that a plurality of portion of terminal is installed in the collector body circumference, even the length of a plurality of teeth is identical as the structural element of laminate-type battery; Also can abirritation in the tensile stress of particularly not having on the lax tooth, prevent broken string.
Description of drawings
Fig. 1 is the summary longitudinal section of battery pile of wiring substrate that the 1st execution mode of the utility model is installed.
Fig. 2 is a vertical view of observing the battery pile of the wiring substrate that the 1st execution mode is installed from the top.
Fig. 3 installs the longitudinal section of battery pile of the wiring substrate of the 1st execution mode.
Fig. 4 is the vertical view of the wiring substrate of Comparative Examples 1.
Fig. 5 is the vertical view of the wiring substrate of the 1st execution mode.
Fig. 6 is the generalized schematic that the wiring substrate of Comparative Examples 1 is installed in the state on the battery pile.
Fig. 7 is the generalized schematic that the wiring substrate of the 1st execution mode is installed in the state on the battery pile.
Fig. 8 is the simple sketch map of the wiring substrate of the 1st execution mode.
Fig. 9 is the simple sketch map of the wiring substrate of the 2nd, the 3rd, the 4th, the 5th execution mode.
Figure 10 is when the wiring substrate with the 2nd, the 3rd execution mode is installed on the battery pile, from the skeleton diagram of wiring substrate side observation.
Figure 11 is when the wiring substrate with the 6th execution mode is installed on the battery pile, from the skeleton diagram of wiring substrate side observation.
Figure 12 is the simple sketch map of the wiring substrate of the 7th, the 8th, the 9th execution mode.
Figure 13 is the summary longitudinal section of ambipolar secondary cell that the wiring substrate of the 10th execution mode is installed.
Figure 14 is a vertical view of observing the ambipolar secondary cell of the wiring substrate that the 10th execution mode is installed from the top.
Figure 15 is the wiring substrate with the 10th execution mode when being installed on the ambipolar secondary cell, the summary sectional arrangement drawing of observing from the wiring substrate side.
Figure 16 is that the summary longitudinal section is amplified in the part of ambipolar secondary cell.
Figure 17 is the vertical view of the wiring substrate of Comparative Examples 2.
Figure 18 is the vertical view of the wiring substrate of the 10th execution mode.
Figure 19 is the summary longitudinal section of ambipolar secondary cell that the wiring substrate of the 11st execution mode is installed.
Figure 20 is a vertical view of observing the ambipolar secondary cell of the wiring substrate that the 11st execution mode is installed from the top.
Figure 21 is the vertical view of the wiring substrate of the 11st execution mode.
Figure 22 is the vertical view of the wiring substrate of the 12nd execution mode.
Figure 23 is the vertical view of the wiring substrate of the 13rd execution mode.
Figure 24 is the summary longitudinal section of ambipolar secondary cell that the wiring substrate of the 13rd execution mode is installed.
Figure 25 is the vertical view of the wiring substrate of the 13rd execution mode.
Figure 26 is the vertical view of the wiring substrate of the 14th execution mode.
Figure 27 is the ambipolar secondary cell of expression wiring substrate that the 11st execution mode is installed and the summary longitudinal section of outside connection status.
Figure 28 is that expression comprises the profile diagram with the ambipolar secondary cell of the wiring substrate of installation the 12nd execution mode of outside coupling part.
Figure 29 is the ambipolar secondary cell of expression wiring substrate that the 15th execution mode is installed and the summary longitudinal section of outside connection status.
Figure 30 is that expression comprises the profile diagram with the ambipolar secondary cell of the wiring substrate of installation the 15th execution mode of outside coupling part.
Figure 31 is the ambipolar secondary cell of expression wiring substrate that the 16th execution mode is installed and the summary longitudinal section of outside connection status.
Figure 32 is that expression comprises the profile diagram with the ambipolar secondary cell of the wiring substrate of installation the 16th execution mode of outside coupling part.
Figure 33 is the ambipolar secondary cell of expression wiring substrate that the 17th execution mode is installed and the summary longitudinal section of outside connection status.
Figure 34 is that expression comprises the profile diagram with the ambipolar secondary cell of the wiring substrate of installation the 17th execution mode of outside coupling part.
Figure 35 is the ambipolar secondary cell of expression wiring substrate that the 18th execution mode is installed and the summary longitudinal section of outside connection status.
Figure 36 is that expression comprises the profile diagram with the ambipolar secondary cell of the wiring substrate of installation the 18th execution mode of outside coupling part.
Figure 37 is the profile diagram that comprises with the ambipolar secondary cell of the wiring substrate of installation the 19th execution mode of outside coupling part.
Figure 38 is the brief strabismus map of battery pile that the wiring substrate of the 1st execution mode is installed.
Figure 39 is the summary side elevation of battery pile that the wiring substrate of the 1st execution mode is installed.
Figure 40 is the simple sketch map of the wiring substrate of the 20th, the 21st execution mode.
Figure 41 A be expression the 20th execution mode four portion of terminal expose the general profile chart of conductive part to the installment state of collector body.
Figure 41 B be expression the 21st execution mode four portion of terminal expose the general profile chart of conductive part to the installment state of collector body.
Figure 42 is that the summary longitudinal section is amplified in the part of the ambipolar secondary cell of expression.
Figure 43 only takes out two forceful electric power auricles and the oblique view represented.
Figure 44 is the vertical view of the wiring substrate of the 22nd execution mode.
Figure 45 be a Comparative Examples 1 of expression four portion of terminal expose the general profile chart of conductive part to the installment state of collector body.
Figure 46 be another Comparative Examples 1 of expression four portion of terminal expose the general profile chart of conductive part to the installment state of collector body.
Figure 47 be the periphery that is illustrated in portion of terminal four portion of terminal that the 1st execution mode under the situation of insulation division is arranged expose the general profile chart of conductive part to the installment state of collector body.
Figure 48 be the periphery that is illustrated in portion of terminal four portion of terminal not having the 1st execution mode under the situation of insulation division expose the general profile chart of conductive part to the installment state of collector body.
Embodiment
According to accompanying drawing execution mode is described below.In the accompanying drawing below, be easy to understand the utility model, will constitute the thickness or the shape exaggeration expression of each layer of the key element etc. of laminate-type battery sometimes.
Fig. 1 is the summary longitudinal section of battery pile 2 of wiring substrate 21 that the 1st execution mode of the utility model is installed, and Fig. 2 is a vertical view of observing the part except forceful electric power auricle 16,17 from the top.Battery pile 2 is unit that constitute ambipolar secondary cell.In Fig. 1, the top is vertical top, and the below is vertical below.
Rectangle and be flat collector body 4, the resin that adds electroconductive stuffing by conductive polymer material or in non-conductive macromolecular material forms.Collector body 4 is not limited to resin, also can be formed by metal.Battery pile 2 has four (a plurality of) bipolar electrodes 3; This bipolar electrode 3 is that the vertical lower surface of the collector body 4 that horizontal direction is placed in Fig. 1 respectively forms positive electrode active material layer 5 (positive pole), forms at the vertical upper surface of collector body 4 that negative electrode active material layer 6 (negative pole) forms.And specific area is bigger mutually with positive electrode active material layer 5 for negative electrode active material layer 6.Layer closes (being connected in series) to each bipolar electrode 3 via dielectric substrate 7 in vertical direction, forms a battery pile 2.
Here; When two bipolar electrodes that above-below direction is adjacent are made as top bipolar electrode, bottom bipolar electrode respectively; So that be positioned at the negative electrode active material layer 6 and the positive electrode active material layer 5 that is positioned at the lower surface of top bipolar electrode of the upper surface of bottom bipolar electrode; Via dielectric substrate 7 modes respect to one another, each bipolar electrode on configuration bottom, top.
The periphery of the horizontal direction of two electrode active material layers 5,6 of anodal, negative pole forms with the periphery of the horizontal direction of collector body 4 and compares a narrow circle.Circumference (the full week of horizontal direction) at the collector body 4 that these two electrode active material layers 5,6 are not set; The encapsulant 11 that has Rack through clamping; Make positive electrode active material layer 5 and negative electrode active material layer 6 insulation, and relative two electrode active material layers 5 of the above-below direction in Fig. 1, the space 8 that produces regulation between 6.In addition, encapsulant 11 is compared with the end of the horizontal direction of two active material layers 5,6 respectively and is configured in the outside with having certain space.
Through filling liquid in above-mentioned space 8 or gluey electrolyte 9, form dielectric substrate 7.
In the space 8 of filling electrolyte 9, be provided with the dividing plate 12 that forms by porous membrane, utilize this dividing plate 12 can also prevent relative two electrode active material layers, 5,6 electric contacts.Electrolyte 9 can pass through this dividing plate 12.
In addition, at the topmost and the foot of battery pile 2, compare with battery pile 2 away from the position, schematically represent forceful electric power auricle 16,17.Of the back, the ambipolar secondary cell of five wiring substrates of installation of this execution mode constitutes through five battery pile 2 are connected in series (modularization).On this ambipolar secondary cell, connect a forceful electric power auricle 16 at topmost negative electrode active material layer 6 respectively, connect another forceful electric power auricle 17 at foot positive electrode active material layer 5.Behind ambipolar secondary cell charge, acting as positive terminal is a forceful electric power auricle 16, and acting as negative terminal after charging is another forceful electric power auricle 17.
Positive electrode active material layer 5 and negative electrode active material layer 6 by across dielectric substrate 7 constitute a monocell layer 15 (monocell).Therefore, battery pile 2 also becomes the structure of three the monocell layers 15 that are connected in series.
The quantity of monocell layer 15 of being connected in series is three in Fig. 1, but the quantity of the monocell layer 15 that is connected in series or be connected in series after state the quantity of battery pile, the voltage that can hope corresponding to reality and regulating.
Thus, if each voltage that in a plurality of monocell layers 15 that are connected in series, distributes is different, the cell voltage that then can't obtain hoping as battery pile 2.For example; As shown in Figure 3; Make four collector bodies 4 begin to be respectively the 1st collector body 4a, the 2nd collector body 4b, the 3rd collector body 4c, the 4th collector body 4d from vertical below; In addition, make three monocell layers 15 begin to be respectively the 1st monocell layer 15a, the 2nd monocell layer 15b, the 3rd monocell layer 15c from vertical below and distinguish.At this moment, the voltage Δ V1 of the 1st monocell layer 15a voltage that can obtain and recording by the voltage that obtains via the 2nd collector body 4b with via the 1st collector body 4a.
Likewise; The voltage that the voltage Δ V2 of the 2nd monocell layer 15b can obtain by the voltage that obtains via the 3rd collector body 4c with via the 2nd collector body 4b and recording, the voltage that the voltage Δ V3 of the 3rd monocell layer 15c can obtain by the voltage that obtains via the 4th collector body 4d with via the 3rd collector body 4c and recording.
In battery pile 2 as the laminate-type battery; Because there are fluctuation respectively in its internal resistance or capacity etc. owing to make fluctuation for three monocell layer 15a, 15b, 15c; So with three monocell layer 15a, 15b, when 15c is connected in series, each monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3 can produce fluctuation.There is the situation of the voltage of each monocell layer greater than fiducial value in this voltage fluctuation, also has the situation of voltage less than fiducial value.Because of this voltage fluctuation, begin to produce deterioration from the bigger monocell layer of voltage fluctuation, the life-span as the laminate-type battery is restricted.Therefore; Preferably through measuring three monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3 respectively; According to each monocell layer 15a of this measurement result control, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3, make voltage Δ V1, Δ V2, the Δ V3 of monocell layer 15a, 15b, 15c all identical.
Therefore; In order to measure the voltage of each monocell layer 15a as the battery pile 2 of laminate-type battery, 15b, 15c; The wiring substrate with flexibility is installed in consideration on the collector body of each monocell layer 15a, 15b, 15c, each monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3 are exported to the outside.The wiring substrate 21 of the Comparative Examples 1 shown in Fig. 4 top for example, is set.The wiring substrate 21 of Comparative Examples 1 has: dielectric film 26 (insulated substrate); It is made up of a pectination position 21f and a connected handle 21g, and four tooth 21a of this pectination position 21f, 21b, 21c, 21d and the trunk 21e that these a plurality of tooth boundlings is become one constitute; Article four, distribution 22,23,24,25; It is formed on this dielectric film 26 by electric conducting material; Extend to the end of handle 21g respectively from the front end separately of four tooth 21a, 21b, 21c, 21d, make the end that conducts to handle 21g with the current potential of the electric conductor of the preceding end in contact of four teeth.In addition, in Fig. 4 top, the front end of four tooth 21a, 21b, 21c, 21d has portion of terminal 22a, 23a, 24a, the 25a that electric conducting material is exposed respectively.Has not shown connector in the end of handle 21g (in Fig. 4 top, being right-hand member).In addition; Handle 21g is for can be from externally measured each monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3; Must pass battery pile 2 (battery) or after the exterior material of the ambipolar secondary cell 30 stated, connector is exposed to the outside of exterior material.Therefore, handle 21g must have length to a certain degree.
Specifically, wiring substrate 21 constitutes by following five layers: the insulated substrate that is made up of the polyimide based resin material; The 1st adhesive linkage that constitutes by the adhesives of insulator; The wiring layer that constitutes by copper as electric conductor; The 2nd adhesive linkage that constitutes by the adhesives of insulator; And the outer shell that constitutes by polyimides, be portion of terminal 22a, 23a, 24a, 25a place at the front end of four tooth 21a, 21b, 21c, 21d, expose to the surface in order to make copper, remove the 2nd adhesive linkage and outer shell.That is, four portion of terminal 22a, 23a, 24a, 25a constitute by following three layers: the insulated substrate that is made up of the polyimide based resin material; The 1st adhesive linkage that constitutes by the adhesives of insulator; And the wiring layer that constitutes by copper as electric conductor.On the other hand, wiring substrate 21 is because have the insulated substrate that is made up of polyimides, so the insulated substrate that the back side of four teeth also is made up of the polyimide based resin material coats.The thickness requirement of four portion of terminal 22a, 23a, 24a, 25a is less than the interval between the relative collector body.
With the wiring substrate 21 of this Comparative Examples 1, like Figure 45 or shown in Figure 11, three the monocell layer 15a, 15b, the 15c that are installed in battery pile 2 respectively are last.Figure 45, Figure 46 are respectively four portion of terminal 22a, 23a, the 24a of Comparative Examples 1 of expression, another Comparative Examples 1, the general profile chart of 25a.And; In a Comparative Examples 1 shown in Figure 45; Periphery at portion of terminal 22a, 23a, 24a, 25a forms insulation division 125,126,127,128, makes the part of staying central authorities constitute conductive part (this conductive part is called " exposing conductive part ") 121,122,123,124.On the other hand, in another Comparative Examples 1 shown in Figure 46, do not form insulation division 125,126,127,128.The wiring substrate 21 on Fig. 4 top is can see that a side of exposing conductive part is that the paper front side is represented.And, conductivity adhesive tape (afterwards stating) is set in the paper front side of exposing conductive part.Here, on Fig. 4 top, making four portion of terminal is respectively that the 1st portion of terminal 22a, the 2nd portion of terminal 23a, the 3rd portion of terminal 24a, the 4th portion of terminal 25a distinguish.For these four portion of terminal 22a, 23a, 24a, 25a and four collector body 4a, 4b, 4c, 4d are electrically connected, implement following operation.That is, at the circumference of the 1st collector body 4a (in Figure 45, Figure 46, being the right part) conductivity two-sided tape (below be called " conductivity adhesive tape ") 111 is set, configuration the 1st portion of terminal 22a's exposes conductive part 121 above this conductivity adhesive tape 111.Then, configuration encapsulant 11 above the 1st portion of terminal 22a, and the 2nd collector body 4b is set above that.At the circumference of the 2nd collector body 4b (in Figure 45, Figure 46, being the right part) conductivity adhesive tape 112 is set, configuration the 2nd portion of terminal 23a's exposes conductive part 122 above this conductivity adhesive tape 112.Then, configuration encapsulant 11 is provided with the 3rd collector body 4c above it above the 2nd portion of terminal 23a.Through carrying out this operation repeatedly, four bipolar electrodes are closed for 3 layers.Then, four bipolar electrode 3 thermo-compressed that through the thermo-compressed operation layer closed.Encapsulant 11 engages with collector body 4a, 4b, 4c, 4d through thermal welding, and, thereby the conductive part of pushing respectively with four collector body 4a, 4b, 4c, the corresponding portion of terminal 22a of 4d, 23a, 24a, 25a 121 to 124 that exposes is electrically connected.As encapsulant 11, can use elastomeric PEO, PPO, PVdF, epoxy resin, silicones etc.Through using elastomer as encapsulant 11; Can absorb owing to collector body 4a, 4b, 4c, 4d and expose the different stress that produce of thermal coefficient of expansion of portion of terminal 22a as the copper of electric conductor, 23a, 24a, 25a, prevent to peel off by what variations in temperature caused.
Through each portion of terminal 22a of 4 of wiring substrate 21,23a, 24a, 25a exposed conductive part 121 to 124; Be installed on the battery pile 2 according to aforesaid way, can make with the voltage (current potential) of the collector body 4a that exposes the measured object of conduct that conductive part 121 to 124 contacts of four portion of terminal 22a, 23a, 24a, 25a, 4b, 4c, 4d and export the outside to through connector.Thus, connector is set, can and measures each monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3 less man-hour with compactness through end at handle 21g.
Further specify; In the wiring substrate 21 of two Comparative Examples 1; Except four conductivity adhesive tapes 111 to 114 area bonding with exposing conductive part 121 to 124, thickness and the length of the area of four portion of terminal 22a, 23a, 24a, 25a, four tooth 21a, 21b, 21c, 21d are all identical.Here, after state in the 1st to the 8th execution mode, the area of so-called portion of terminal (following this area all is called " portion of terminal area ") is meant the area of a portion of terminal, is not the area of four portion of terminal area summations.In addition, after in the 9th to the 19th execution mode stated, sometimes with whole portion of terminal areas of a wiring substrate promptly four portion of terminal area summations be called the portion of terminal area.In addition, so-called portion of terminal area is provided with at the portion of terminal periphery under the situation of insulation division (with reference to Figure 45), is meant the area that comprises insulation division, and does not have at the periphery of portion of terminal to be meant the area that does not comprise insulation division under the situation of insulation division (with reference to Figure 46).As exposing the conductive part area, exist at the periphery of portion of terminal under the situation of insulation division (with reference to Figure 45), be meant except insulation division, promptly only expose the area of conductive part.Do not have at the periphery of portion of terminal under the situation of insulation division (with reference to Figure 46), it is consistent with the portion of terminal area to expose the conductive part area.On the other hand, so-called bond area is meant conductivity adhesive tape and the area (also being the area with the collector body butt) that exposes the conductive part butt.Briefly, the area of conductivity adhesive tape is exactly a bond area.
In addition, because the thickness of tooth is the notion that comprises the width and the thickness of tooth, the width and the thickness of tooth is defined separately.The width of so-called tooth is meant in the top of Fig. 4 the width of tooth 21a, 21b, 21c, 21d above-below direction.In addition, in the top of Fig. 4, tooth 21a, 21b, 21c, 21d have certain thickness along the direction that runs through paper.The thickness of so-called tooth is meant tooth 21a, 21b, the 21c of the direction that this runs through paper, the thickness of 21d.If the thickness of tooth is identical, then can make the tooth chap through the width that increases tooth.In addition, if the width of tooth is identical, then can make the tooth chap through the thickness that increases tooth.Wiring substrate 21 is being installed to 2 last times of battery pile, the above-below direction shown in Fig. 4 top is and the surperficial parallel direction of collector body 4a to 4d that in addition, in Fig. 4 top, the direction that runs through paper is that the layer of monocell layer closes direction.Therefore; Wiring substrate 21 is being installed to 2 last times of battery pile; Four tooth 21a, 21b, 21c, 21d close direction (direction that is connected in series of monocell) at the layer of monocell layer respectively and have certain thickness, have certain width with the surperficial parallel direction of collector body.
In Fig. 4 top, with conductivity adhesive tape 111,112,113,114 and portion of terminal 22a, 23a, 24a, 25a to expose conductive part 121,122,123,124 overlapping and represent.But, if because make conductivity adhesive tape and portion of terminal to expose conductive part overlapping then be difficult to observe, so that the conductive part that exposes of conductive paste band 111 to 114 and portion of terminal compare smaller and represent.In fact, like Figure 45, shown in Figure 46, the bond area of conductivity adhesive tape 111 to 114 and portion of terminal to expose the conductive part area identical.In addition, the bond area of conductivity adhesive tape is not necessarily with to expose the conductive part area identical, the bond area of conductivity adhesive tape and portion of terminal expose that the conductive part area compares can be bigger or smaller.In this case, make four conductivity adhesive tapes 111 to 114 be respectively the 1st conductivity adhesive tape the 111, the 2nd conductivity adhesive tape the 112, the 3rd conductivity adhesive tape the 113, the 4th conductivity adhesive tape 114 and distinguish.
Here, portion of terminal and and the corresponding collector body of this portion of terminal between bonding force (following also abbreviate as " bonding force that portion of terminal is exposed conductive part and collector body "), relevant with the bond area and the adhering method of conductivity adhesive tape 111 to 114.If identical adhering method, then the big more bonding force of bond area is strong more.If bond area is identical, then bonding force is because adhering method and difference.The area of conductivity adhesive tape is constant, exposes the increase of conductive part area and only make, and then the bonding force of portion of terminal and collector body can not strengthen.
The collector body 4a to 4d that is formed by resin and portion of terminal 22a, 23a, 24a, 25a expose the bonding of conductive part 121 to 124, use at least a in conductive component, ultrasonic fusing, the thermo-compressed.This is because at contact resistance resin collector body (parts) 4a to 4d bigger than the collector body that is formed by metal; With exposing under the bonding situation of conductive part 121 to 124 of portion of terminal 22a, 23a, 24a, 25a; Bonding, mechanical cohesive bond through using conductive component or carry out bondingly with heat can reduce the contact resistance that exposes 121 to 124 of conductive parts of resin collector body and portion of terminal.Preferably resin collector body and portion of terminal expose conductive part 121 to 124 bonding after, make contact resistance be less than or equal to 1 Ω.
Can enumerate conductivity adhesive tape, conductivity viscose glue, conductivity thermmohardening encapsulant, conduction plastic encapsulant hot in nature, anisotropic conductive bonding agent as above-mentioned conductive component.The conductivity adhesive tape can use normally used material.For example, known in the adhesive tape of acrylic compounds the material of dispersed electro-conductive property filler.Electroconductive stuffing comprises metallics such as carbon and Fe, Ni, Al, Ag, Au, Cu.Bonding way as the conductivity adhesive tape has lamination mode etc.The coating method of above-mentioned anisotropic conductive bonding agent comprises pressing mold coating, screen printing mode, ink jet type mode of printing etc.
Thus; In each wiring substrate 21 of two Comparative Examples 1; Because the length of four tooth 21a, 21b, 21c, 21d and thickness, four portion of terminal 22a, 23a, 24a, the portion of terminal area of 25a, four bond areas that expose conductive part area, four conductivity adhesive tapes 111 to 114 are all identical; So portion of terminal 22a, 23a, 24a, 25a exposed conductive part 121 to 124; Use conductivity adhesive tape bonding (installation) from the end (among Fig. 3, being right-hand member) of the electrode active material 5,6 on two surfaces up and down of being arranged on collector body away from collector body 4a, 4b, 4c, the 4d of the position of same distance last after, the relax level of four teeth is different.Therefore, using under the environment that vibration takes place under the situation of battery pile 2, do not having relatively on the lax tooth, comparing, acting on relatively large tensile stress with lax relatively tooth.Have in effect on the tooth of this relatively large tensile stress, have the tooth of less relatively tensile stress to compare with effect, the possibility of broken string increases.If on wiring substrate 21, break, then can't measure the voltage of whole monocell layers accurately.In addition, as the situation of in the environment that vibration takes place, using battery pile 2, consider the situation that battery pile 2 is carried on automobile.
With reference to Fig. 6 this is further described.Here, in Fig. 3, make four tooth 21a, 21b, 21c, 21d begin to be respectively the 1st tooth 21a, the 2nd tooth 21b, the 3rd tooth 21c, the 4th tooth 21d from the below and distinguish.In addition, make four distributions 22,23,24,25 be respectively the 1st distribution the 22, the 2nd distribution the 23, the 3rd distribution the 24, the 4th distribution 25 and distinguish.Fig. 6 is the generalized schematic of the state on the battery pile 2 that the wiring substrate 21 of the Comparative Examples 1 shown in Fig. 4 top is installed to.Handle 21g is positioned at the height of the 1st collector body 4a.
In Fig. 6 because only with wiring substrate 21 to the installment state of four collector body 4a to 4d as problem, so the incomplete structure of the battery pile 2 except four collector body 4a, 4b, 4c, 4d is represented.In addition, the difference of four tooth 21a, 21b, 21c, the 21d thickness with line is showed, four tooth 21a, 21b, 21c, 21d are all represented with identical thickness.
With four portion of terminal 22a, 23a, 24a, 25a expose on the same position that conductive part 121 to 124 is installed to corresponding collector body circumference the time, according to the order of the 4th tooth 21d, the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a, tooth is lax to be increased.When acting on the whole of wiring substrate 21 followed the tensile stress of vibration; It is last that this tensile stress is dispersed to four tooth 21a, 21b, 21c, 21d; If last at four tooth 21a, 21b, 21c, 21d, the relax level of tooth is different but as stated; Then, act on relatively large tensile stress at the more little tooth of relax level.That is, in Fig. 6, because on the 4th tooth 21d, act on maximum tensile stress,, compare, easily broken string with the 1st distribution 22 on being arranged on the 1st tooth 21a so be arranged on the 4th distribution 25 on the 4th tooth 21d.If break, then can't measure the voltage of the 4th collector body 4d at the 4th distribution 25.
In addition, follow vibration and tensile stress is concentrated on the less tooth of relax level tendency does, the quantity of closing that direction (in Fig. 3, be above-below direction) thickness increases or layer closing the monocell layer along with the layer along the monocell layer increases.Even the battery performance of three monocell layer 15a, 15b, 15c is not unusual; Wiring substrate 21 according to the Comparative Examples 1 shown in Fig. 4 top; Under the situation that broken string takes place, also can't measure three monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3.
Therefore; In the wiring substrate 21 of the 1st execution mode of the utility model; As shown in Figure 5, different with the wiring substrate 21 of Comparative Examples 1, be benchmark with the height (position) that wiring substrate 21 is installed in the handle 21g under the situation on the battery pile 2; (layer of monocell layer closes direction) apart from handle 21g tooth far away more, makes the thickness of tooth thick more along the vertical direction.In addition, the height (position) that is not limited to handle 21g is the situation of benchmark.Can be benchmark also with any the height (position) among for example four the tooth 21a except handle 21g, 21b, 21c, the 21d.Can be with arbitrary height (position) as benchmark.In following execution mode, the situation that mainly has an insulation division with the periphery in portion of terminal describes.In this case, the area that exposes conductive part if the portion of terminal area increases also increases.In addition, the periphery of portion of terminal does not have the situation of insulation division to be the object of the utility model too.For example; The periphery that in Figure 47, is illustrated in portion of terminal has under the situation of insulation division; The state that conductive part 121 to 124 is installed on the battery pile that exposes with four portion of terminal of wiring substrate; The periphery of expression portion of terminal does not have under the situation of insulation division in Figure 48, with the state that conductive part 121 to 124 is installed on the battery pile that exposes of four portion of terminal of wiring substrate.
Wiring substrate 21 for this 1st execution mode describes particularly.Fig. 5 is the vertical view of the wiring substrate 21 of the 1st execution mode.At Fig. 5, also wiring substrate 21 can be observed a side of exposing conductive part and represent as the paper front side.And, exposing the paper front side configuration conductivity adhesive tape 111 to 114 of conductive part.This wiring substrate 21 is being installed under the state on the battery pile 2, because be above the vertical direction above Fig. 5, the below is the vertical direction below, thus following in Fig. 5, also the top is regarded as the vertical direction top, the below is regarded as the vertical direction below.
Here, because the thickness of tooth is the notion that comprises the width and the thickness of tooth, the width and the thickness of tooth is defined separately.The width of so-called tooth is meant at Fig. 5 the width of tooth 21a, 21b, 21c, 21d above-below direction.In addition, at Fig. 5, tooth 21a, 21b, 21c, 21d have certain thickness along the direction that runs through paper.The thickness of tooth is meant tooth 21a, 21b, the 21c of the direction that runs through this paper, the thickness of 21d.If the thickness of tooth is identical, then can make the tooth chap through the width that increases tooth.In addition, if the width of tooth is identical, then can make the tooth chap through the thickness that increases tooth.Wiring substrate 21 is being installed to 2 last times of battery pile, above-below direction shown in Figure 5 is and the surperficial parallel direction of collector body 4a to 4d that in addition, at Fig. 5, the direction that runs through paper is that the layer of monocell layer closes direction.Therefore; Wiring substrate 21 is being installed to 2 last times of battery pile; Four tooth 21a, 21b, 21c, 21d close direction (the series connection direction of monocell) at the layer of monocell layer respectively and have certain thickness, at the width that has regulation with the surperficial parallel direction of collector body.
Will be at the height of the 1st tooth 21a under the situation that wiring substrate 21 is installed on the battery pile 2 as the 1st altitude datum (the 1st reference position); As shown in Figure 5; With the width of the 1st tooth 21a as the 1st datum width W1; With the length of the 1st tooth 21a as the 1st datum length L1, with the 1st portion of terminal 22a expose conductive part 121 expose the conductive part area as the 1st benchmark area S1.At this moment, make the width of the 2nd tooth 21b be wider than the 1st datum width W1, make the width of the 3rd tooth 21c be wider than the width of the 2nd tooth 21b, make the width of the 4th tooth 21d be wider than the width of the 3rd tooth 21c.2nd, the length of the 3rd, the 4th tooth 21b, 21c, 21d is identical with the 1st datum length L1, make the 2nd, the 3rd, the 4th portion of terminal 23a, 24a, 25a expose conductive part 122,123,124 to expose the conductive part area identical with the 1st benchmark area S1.
In addition, if with the thickness of the 1st tooth 21a as the 1st root thickness T1 (with reference to Figure 10), then the thickness of the 2nd, the 3rd, the 4th tooth 21b, 21c, 21d also is the 1st root thickness T1.In addition, in the execution mode of following explanation, about the short of special declaration of the thickness of tooth, the thickness of four teeth is all identical.
Below; With the bond area of the 1st conductivity adhesive tape 111 that exposes conductive part 121 and the 1st collector body 4a of bonding the 1st portion of terminal 22a as the 1st benchmark bond area Sad1; The bond area that makes the 2nd conductivity adhesive tape 112 is greater than the 1st benchmark bond area Sad1; Make the bond area of the bond area of the 3rd conductivity adhesive tape 113, make the bond area of the bond area of the 4th conductivity adhesive tape 114 greater than the 3rd conductivity adhesive tape 113 greater than the 2nd conductivity adhesive tape 112.Here, if because the exposing that conductive part overlaps then be difficult for observing of conductivity adhesive tape and portion of terminal, so that the conductive paste band be slightly less than the exposing conductive part of portion of terminal and represent.In fact, the bond area of conductivity adhesive tape is identical with the area that exposes conductive part of portion of terminal.In addition, the bond area of conductivity adhesive tape not necessarily with portion of terminal to expose the conductive part area identical, can compare bigger or smaller with the conductive part area that exposes of portion of terminal.
For the wiring substrate 21 of the 1st execution mode that will constitute according to aforesaid way is installed on the battery pile 2; Shown in figure 47; At first the conductive part 121 that exposes with the 1st portion of terminal 22a uses the 1st conductivity adhesive tape 111 to bond to the benchmark installation site of the 1st collector body 4a top circumference, and the conductive part 122 that exposes with the 2nd portion of terminal 23a uses the 2nd conductivity adhesive tape 112 to bond to the benchmark installation site of the 2nd collector body 4b top circumference then.Likewise; With the benchmark installation site that conductive part 123 uses the 3rd conductivity adhesive tape 113 bonds to the 3rd collector body 4c top circumference of exposing of the 3rd portion of terminal 24a, with the benchmark installation site that conductive part 124 uses the 4th conductivity adhesive tape 114 bonds to the 4th collector body 4d top circumference of exposing of the 4th portion of terminal 25a.
Further specify.The conductive part 121,122,123,124 that exposes of four portion of terminal 22a, 23a, 24a, 25a contacts with corresponding collector body 4a to 4d via conductivity adhesive tape 111 to 114.The bond area that exposes conductive part area and conductivity adhesive tape that exposes conductive part that makes portion of terminal means the contact area of exposing conductive part and collector body that increases portion of terminal like the said increase in back.In this case, if change contact area, then portion of terminal exposes conductive part and the contact resistance of collector body and compares before changing and can change.That is, exist contact resistance greater than before changing with less than both of these case before changing.Therefore, in exposing in the conductive part of four portion of terminal, contact resistance can produce fluctuation.Receive the influence of the fluctuation of this contact resistance, can't measure the voltage of each collector body accurately.In order to address this problem; Expose the conductive part area and compare increase making with the 1st benchmark area S1; And the bond area of conductivity adhesive tape is compared under the situation of increase with the 1st benchmark bond area Sad1; Compare when measuring contact resistance in advance and whether change with the 1st benchmark area S1 and the 1st benchmark bond area Sad1; Compare under the situation of variation during at contact resistance, can the voltage of four measured collector bodies be proofreaied and correct with the voltage suitable with this variable quantity with the 1st benchmark area S1 and the 1st benchmark bond area Sad1.
Thus; Wiring substrate 21 according to the 1st execution mode; Respectively in the identical installation site (installation site of benchmark) of the circumference of four collector body 4a, 4b, 4c, 4d; Use under the situation of exposing conductive part 121 to 124 of four portion of terminal 22a of conductivity adhesive tape 111 to 114 bonding (installations), 23a, 24a, 25a, make among four tooth 21a, 21b, 21c, the 21d away from the tooth of the 1st altitude datum, the width of tooth is wide more.Though on distance the 1st altitude datum the 4th tooth 21d farthest, act on maximum tensile stress, because the width of the 4th tooth 21d is the wideest, so can prevent to be arranged on the 4th distribution 25 broken strings on the 4th tooth 21d.
Fig. 7 makes handle 21g be positioned at the height of the 1st collector body 4a, the wiring substrate 21 of the 1st execution mode is installed to the generalized schematic of the state on the battery pile 2.In Fig. 7 because be problem to the installment state of four collector body 4a to 4d only with distribution substrate 21, so the incomplete structure of the battery pile 2 except four collector body 4a, 4b, 4c, 4d and the expression.In addition, because be difficult to the difference of the width of four tooth 21a of performance, 21b, 21c, 21d, so show with the thickness of tooth, the order according to the 1st tooth 21a, the 2nd tooth 22a, the 3rd tooth 23a, the 4th tooth 21d increases slightly the thickness of tooth.
Wiring substrate 21 according to this 1st execution mode; Because the lax minimum of four tooth middle distance the 1st altitude datum the 4th tooth 21d farthest; Even so on the 4th tooth 21d, act on maximum tensile stress, as shown in Figure 7, because the width of the 4th tooth 21d (thickness) the wideest (slightly); So the 4th distribution 25 that is arranged on the 4th tooth 21d is compared with the 1st distribution 22 on being arranged on the 1st tooth 21a, also be difficult for broken string.Thus, can three monocell layers of high- acruracy survey 15a, 15b, the voltage Δ V1 of 15c, Δ V2, Δ V3.
Figure 38 is the brief strabismus map of battery pile 2 that the wiring substrate 21 of the 1st execution mode is installed.In addition, Figure 39 representes from the summary side elevation of the battery pile 2 of the unilateral observation of wiring substrate 21 that the 1st execution mode is installed.In addition, in Figure 38, Figure 39, only take out four collector body 4a, 4b, 4c, 4d and represent.Like Figure 38, shown in Figure 39, can know that the main body 21e of wiring substrate 21 is positioned at from the position of the 1st altitude datum slight inclination.
In addition, at Fig. 5, the right-hand member of handle 21g is connected with not shown connector.This connector passes exterior material and outside exterior material, exposes as previously mentioned, via this connector, can link to each other with other devices.
Fig. 8 (a) is again with the figure of the wiring substrate of the 1st execution mode shown in the simple schematic diagrammatic sketch 5.In Fig. 8 (a), for ease, draw the 1st portion of terminal 22a to such an extent that promptly the 1st datum width W1 is wideer than the width of the 1st tooth 21a.As stated, in the simple sketch map of wiring substrate 21, the width of the tooth of part that will be except portion of terminal is as the width of tooth.In Fig. 8 (a), handle 21g is arranged on the position near the 1st altitude datum, but the height (position) that handle 21g is set can be the optional position basically.For example, shown in Fig. 8 (b), handle 21g also can close the centre of direction (in Fig. 8, being above-below direction) at the layer of monocell layer.The wiring substrate 21 of Fig. 8 (a) will can be observed and expose conductive part 121 to 124 1 sides and represent as the paper front side.The insulation division of portion of terminal periphery omits and not expression.And, conductivity adhesive tape 111 to 114 is set in the paper front side of exposing conductive part 121 to 124.Because conductivity adhesive tape 111 to 114 and portion of terminal 22a, 23a, 24a, the overlapping and difficult observation of 25a (exposing conductive part 121 to 124), institute so that conductive paste band 111 to 114 compare smallerly and represent with portion of terminal 22a, 23a, 24a, 25a (exposing conductive part 121 to 124).In fact, the bond area of conductivity adhesive tape 111 to 114 identical with the area that exposes conductive part 121 to 124 of portion of terminal 22a, 23a, 24a, 25a (with reference to Fig. 8 (c)).
And, for after the wiring substrate of the simple sketch map (Fig. 8 (b), Fig. 9, Figure 12, Figure 17, Figure 18, Figure 21, Figure 22, Figure 25, Figure 26, Figure 44) stated, wiring substrate also exposes conductive part one side and representes as the paper front side can be observed.The insulation division of portion of terminal periphery omits and not expression.But, in the simple sketch map (only except Figure 40) shown in Fig. 9 is later, omit the expression of conductivity adhesive tape, but be not use the conductivity adhesive tape.Below except Figure 40, do not do special instruction for the conductivity adhesive tape, but all use the conductivity adhesive tape that exposes conductive part area area identical (or approaching area) that exposes conductive part with portion of terminal, bonding portion of terminal expose conductive part and collector body.
Below, the wiring substrate 21 that is installed in other execution modes on the battery pile 2 is described.The characteristic of the wiring substrate 21 of the utility model is, the width of four tooth 21a, 21b, 21c, 21d is had nothing in common with each other.As basic skills in this case, be that the width with the tooth at the 1st altitude datum place is benchmark (the 1st datum width W1), make the width that is positioned at the tooth at the 1st altitude datum different height place be wider than the 1st datum width W1.Be not necessarily shown in Fig. 8 (a) and (b),, make the width of tooth wide more away from the tooth of the 1st altitude datum.
Fig. 9 (a) to (d) is the figure that representes the wiring substrate 21 of the 2nd, the 3rd, the 4th, the 5th execution mode with simple sketch map, is the situation that replaces the wiring substrate 21 of the 1st execution mode shown in Fig. 8 (a) and (b).In the wiring substrate 21 of the 2nd execution mode shown in Fig. 9 (a),,, the width of tooth is increased with the order of the 4th tooth 21d, the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a with the tooth of the 4th tooth 21d as the 1st altitude datum place.In the wiring substrate 21 of the 3rd execution mode shown in Fig. 9 (b),,, the width of tooth is increased with the order of the 4th tooth 21d, the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a with the tooth of the 4th tooth 21d as the 1st altitude datum place.In the wiring substrate 21 of the 4th execution mode shown in Fig. 9 (c),,, the width of tooth is increased with the order of the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a, the 4th tooth 21d with the tooth of the 3rd tooth 21c as the 1st altitude datum.In the wiring substrate 21 of the 5th execution mode shown in Fig. 9 (d),,, the width of tooth is increased with the order of the 4th tooth 21d, the 1st tooth 21a, the 2nd tooth 21b, the 3rd tooth 21c with the tooth of the 4th tooth 21d as the 1st altitude datum.Thus, not necessarily away from the tooth that is positioned at the 1st altitude datum, make the width of tooth wide more.
Figure 10 (a) and (b) are to be installed to 2 last times of battery pile at the wiring substrate 21 with the 2nd, the 3rd execution mode shown in Fig. 9 (a) and (b), the summary longitudinal section of observing from wiring substrate 21 sides.In the wiring substrate 21 of the 2nd execution mode; Shown in Figure 10 (a); The portion of terminal 22a of four tooth 21a, 21b, 21c, 21d, 23a, 24a, 25a expose the position that conductive part 121 to 124 proper alignment are tilting; But in the wiring substrate 21 of the 3rd execution mode, shown in Figure 10 (b), the installation site of exposing conductive part 121 to 124 of the portion of terminal 22a of four tooth 21a, 21b, 21c, 21d, 23a, 24a, 25a is proper alignment not.
In the wiring substrate 21 of the 3rd execution mode shown in Figure 10 (b); The conductive part 121 that exposes of the portion of terminal 22a of the 1st tooth 21a is installed on the 2nd collector body 4b; The conductive part 122 that exposes of the portion of terminal 23a of the 2nd tooth 21b is installed on the 3rd collector body 4c; The conductive part 123 that exposes of the portion of terminal 24a of the 3rd tooth 21c is installed on the 1st collector body 4a, the conductive part 124 that exposes of the portion of terminal 25a of the 4th tooth 21d is installed on the 4th collector body 4d.Voltage measurement method as in this case monocell layer is described below.That is, utilize exposing voltage that conductive part 123 obtains and, measuring the voltage Δ V1 of the 1st monocell layer 15a from the portion of terminal 24a of the 3rd tooth 21c from the voltage that conductive part 121 obtains that exposes of the portion of terminal 22a of the 1st tooth 21a.Utilization from the portion of terminal 22a of the 1st tooth 21a expose voltage that conductive part 121 obtains and from the voltage that conductive part 122 obtains that exposes of the portion of terminal 23a of the 2nd tooth 21b; Measure the voltage Δ V2 of the 2nd monocell layer 15b; Utilization is exposed voltage that conductive part 122 obtains and from the voltage that conductive part 124 obtains that exposes of the portion of terminal 25a of the 4th tooth 21d, is measured the voltage Δ V3 of the 3rd monocell layer 15ca from the portion of terminal 23a's of the 2nd tooth 21b.
The action effect of the wiring substrate 21 of the 1st to the 5th execution mode here, is described.
Wiring substrate 21 according to the 1st to the 5th execution mode; Have: insulated substrate 26; It is made up of a pectination position 21f and a connected handle 21g, and this pectination position 21f becomes one by four (a plurality of) tooth 21a, 21b, 21c, 21d with these four tooth 21a, 21b, 21c, 21d boundling trunk 21e constitutes; Many distributions 22,23,24,25; It is formed on this insulated substrate 26 by electric conducting material; Front end separately from above-mentioned four tooth 21a, 21b, 21c, 21d extends to the end of handle 21g respectively, makes the end that conducts to handle 21g with the current potential of the electric conductor of the preceding end in contact of four tooth 21a, 21b, 21c, 21d; And portion of terminal 22a, 23a, 24a, 25a; It makes electric conducting material expose the front end at above-mentioned four tooth 21a, 21b, 21c, 21d; Because make width (thickness) difference of four tooth 21a, 21b, 21c, 21d; So with wiring substrate 21 when battery pile 2 is installed; Three (a plurality of) monocell layer 15a, 15b, 15c for as the inscape of laminate-type battery are installed under the situation of the roughly the same position of collector body circumference at the conductive part 121 to 124 that exposes with four portion of terminal 22a, 23a, 24a, 25a, even the length of four tooth 21a, 21b, 21c, 21d is identical; Also can the tensile stress that particularly acts on the lax less tooth be relaxed the identical degree of tensile stress on extremely lax with the acting on maximum tooth, thereby prevent broken string.Its result, the situation of the wiring substrate of the Comparative Examples 1 identical with the width (thickness) that makes four tooth 21a, 21b, 21c, 21d is compared, and can measure three monocell layer 15a, 15b, each voltage Δ V1 of 15c (monocell), Δ V2, Δ V3 accurately.
According to the wiring substrate 21 of the 1st, the 2nd execution mode, shown in Fig. 8 (a) and (b), Fig. 9 (a), make the width (thickness) of four (a plurality of) tooth 21a, 21b, 21c, 21d begin to increase successively (slightly) from being positioned at outermost tooth 21a or 21d.Therefore, according to the wiring substrate 21 of for example the 2nd execution mode, shown in Figure 10 (a), four teeth (portion of terminal expose conductive part) are to the installation site of collector body proper alignment.If shown in Figure 10 (a); To the installation site of collector body proper alignment; Then with wiring substrate 21 when battery pile 2 is installed; With respect to three (a plurality of) monocell layer 15a, 15b, 15c as the structural element of laminate-type battery, can be exactly, efficiently with the roughly the same position that conductive part 121 to 124 is installed to the collector body circumference of exposing of whole four portion of terminal 22a, 23a, 24a, 25a.
On the other hand; The battery pile 2 of the wiring substrate 21 of the 1st execution mode is installed; Through forming positive electrode active material layer 5 (positive pole) at the lower surface (surface) of a collector body; Form two bipolar electrodes 3 of negative electrode active material layer 6 (negative pole) at upper surface (over against the surface); According to making positive electrode active material layer 5 and negative electrode active material layer 6 modes respect to one another; Across dielectric substrate 7 and layer closes, constitute by positive electrode active material layer 5 and the monocell layer 15 (monocell) that negative electrode active material layer 6 constitutes across dielectric substrate 7, three (a plurality of) this monocell layer 15 is connected in series; This battery pile has the wiring substrate 21 of the voltage measurement that is used for carrying out respectively these three monocell layer 15a, 15b, 15c; This wiring substrate 21 comprises following part and constitutes: dielectric film 26 (insulated substrate), and it is made up of a pectination position 21f and a connected handle 21g, and this pectination position 21f becomes one by four (a plurality of) tooth 21a, 21b, 21c, 21d with these a plurality of tooth 21a, 21b, 21c, 21d boundling trunk 21e constitutes; Article four, distribution 22,23,24,25; It is formed on this dielectric film 26 by electric conducting material; Extend to the end of handle 21g respectively from the front end separately of four tooth 21a, 21b, 21c, 21d, make the end that conducts to handle 21g with the current potential of the electric conductor of the preceding end in contact of four tooth 21a, 21b, 21c, 21d; And portion of terminal 22a, 23a, 24a, 25a; It makes electric conducting material expose at the front end of four tooth 21a, 21b, 21c, 21d, and it is last that four portion of terminal 22a, 23a, 24a, 25a (expose conductive part 121 to 124) are bonded to corresponding collector body 4a, 4b, 4c, 4d.On this battery pile 2; Because make among four tooth 21a, 21b, 21c, the 21d; Be installed in the width (thickness) that is positioned at away from the last tooth 21b of collector body 4b, 4c, the 4d of the position of predefined the 1st altitude datum (the 1st reference position), 21c, 21d, be wider than the width (thickness) that (being coarser than) is installed in the tooth 21a on the collector body 4a that is positioned near the 1st altitude datum (or being positioned at the 1st altitude datum).Thus; At the 2nd, the 3rd, the 4th collector body 4b, 4c, 4d (being positioned at collector body) away from the position of the 1st altitude datum; With the 1st collector body 4a (be positioned at the 1st altitude datum or be positioned near the collector body of the 1st altitude datum); Under the situation of exposing conductive part of the roughly the same position of collector body circumference mounting terminal portion; Can with act on tensile stress on the 2nd tooth 21b, the 3rd tooth 21c, the 4th tooth 21d relax to act on the 1st tooth 21a on the identical degree of tensile stress, thereby prevent the broken string that takes place at the 2nd tooth 21b, the 3rd tooth 21c, the 4th tooth 21d.Its result; The situation that the wiring substrate 21 of the Comparative Examples 1 identical with the width (thickness) that will make four tooth 21a, 21b, 21c, 21d is installed on the battery pile 2 is compared, and can measure three monocell layer 15a, 15b, each voltage Δ V1 of 15c, Δ V2, Δ V3 accurately.
Wiring substrate 21 according to the 1st, the 2nd execution mode; Among four tooth 21a, 21b, 21c, the 21d; Because away from the tooth of the 1st altitude datum (the 1st reference position); Make the width (thickness) wide more (slightly) (with reference to Fig. 8 (a) and (b), Fig. 9 (b)) of tooth; So for four collector body 4a, 4b, 4c, 4c; The conductive part 121 to 124 that exposes of four portion of terminal 22a, 23a, 24a, 25a all is installed under the situation of the roughly the same position of collector body circumference; Can with act on tensile stress on the 2nd tooth 21b, the 3rd tooth 21c, the 4th tooth 21d relax to act on the 1st tooth 21a on the identical degree of tensile stress, thereby prevent broken string in the 2nd tooth 21b, the 3rd tooth 21c, the generation of the 4th tooth 21d place, and can accurate and accurately four portion of terminal 22a, 23a, 24a, 25a all be installed in the same position of collector body circumference.
In the manufacturing process of battery; Be positioned at two tooth 21a, the 21d at two ends among four tooth 21a, 21b, 21c, the 21d, compare, we can say reason because of operating aspect with being positioned at inboard two tooth 21b, 21c; The chance that contacts or collide with miscellaneous part is more, and correspondingly the possibility of broken string is higher.Wiring substrate 21 according to the 4th execution mode; Because in four (a plurality of) teeth; Even make the tooth 21a, the 21d that are positioned at two ends, inboard tooth 21b, 12c are thicker than being positioned at, so because of the reason of operating aspect; It is more to be positioned at the chance that the tooth at two ends contacts or collide with miscellaneous part, also can prevent the broken string that takes place on the tooth at two ends being positioned at.
Wiring substrate 21 according to the 1st, the 2nd execution mode; Because make each portion of terminal 22a, 23a, 24a, 25a (expose conductive part 121 to 124) installation site to collector body 4a, 4b, 4c, 4d; For from the end (being right part among Fig. 3) of positive electrode active material layer 5 (positive pole) or negative electrode active material layer 6 (negative pole) at a distance of the position of roughly the same distance; So with respect to four collector body 4a, 4b, 4c, 4d; Can be with the roughly the same position that conductive part 121 to 124 is installed in the collector body circumference of exposing of whole four portion of terminal 22a, 23a, 24a, 25a; Thereby reduce voltage Δ V1, the Δ V2 of three monocell layer 15a, 15b, 15c, the fluctuation of Δ V3, measure three monocell layer 15a, 15b, each voltage Δ V1 of 15c, Δ V2, Δ V3 accurately.
According to the wiring substrate 21 of any execution mode that is installed in the 1st to the 5th on the battery pile 2, collector body 4a, 4b, 4c, 4d use the resin collector body that in macromolecular material, has used conductive component.The resin collector body has elasticity because of comparing with metal current collector; And be close to more with the conductive part 121 to 124 that exposes of the portion of terminal 22a of wiring substrate 21,23a, 24a, 25a; So can relax the tensile stress of following vibration, prevent the broken string of wiring substrate 21.
Figure 11 is installed to 2 last times of battery pile at the wiring substrate 21 with the 6th execution mode, from the observed summary longitudinal section of wiring substrate 21 sides, is the figure that replaces Figure 10 (a) of the 2nd execution mode.
The wiring substrate 21 of the 6th execution mode shown in Figure 10 (a) is the tooth at the 1st altitude datum place with the 4th tooth 21d, according to the order of the 4th tooth 21d, the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a, the width of tooth is increased.But on the wiring substrate 21 of the 2nd execution mode, the thickness of four teeth all is the 1st root thickness T1.To this, the wiring substrate 21 of the 6th execution mode shown in Figure 11 is a prerequisite with the wiring substrate 21 of the 2nd execution mode shown in Figure 10 (a), and further the order according to the 4th tooth 21d, the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a increases the thickness of four teeth.That is, making the thickness of the 3rd tooth 21c is the thickness T 1 ' that is thicker than the 1st root thickness T1, and the thickness that makes the 2nd tooth 21b is the thickness T 1 that is thicker than the thickness T 1 ' of the 3rd tooth 21c ", the thickness of the 1st tooth 21a is the thickness T 1 that is thicker than the 2nd tooth 21b " thickness T 1 " '.
Thus; Wiring substrate 21 according to the 6th execution mode shown in Figure 11; Close direction (direction that is connected in series of monocell) at each tooth 21a, 21b, 21c, 21d along the layer of monocell layer and have certain thickness; And the edge has under the situation of certain width with the surperficial parallel direction of collector body, because make in four (a plurality of) teeth away from the tooth of the 1st reference position, the width of tooth is wide more; And away from the tooth of the 1st reference position; The thicker of tooth so be not only the tensile stress of following with the vibration of the surperficial parallel direction of collector body 4a to 4d, also can relax the tensile stress that the layer of following monocell layer 15a, 15b, 15c closes the vibration of direction (vertical direction).
Figure 12 (a) to (c) utilizes simple sketch map to represent the figure of the wiring substrate 21 of the 7th, the 8th, the 9th execution mode, is the figure that replaces the wiring substrate 21 of the 2nd execution mode shown in Fig. 9 (a).Wherein, the wiring substrate 21 of the 7th execution mode shown in Figure 12 (a) is a prerequisite with the wiring substrate 21 of the 2nd execution mode shown in Fig. 9 (a), further makes the length of four teeth elongated according to the order of the 4th tooth, the 3rd tooth, the 2nd tooth, the 1st tooth.Promptly; The length of the 4th tooth 21d is identical with the length (the 1st datum length L1) of the 4th tooth 21d of the wiring substrate 21 of the 2nd execution mode shown in Fig. 9 (a); The length of the 3rd tooth 21c ' is longer than the 1st datum length L1; The length of the 2nd tooth 21b ' is longer than the length of the 3rd tooth 21c ', and the length of the 1st tooth 21a ' is longer than the length of the 2nd tooth 21b '.
The wiring substrate 21 of the 8th execution mode shown in Figure 12 (b); Wiring substrate 21 with the 2nd execution mode shown in Fig. 9 (a) is a prerequisite; And make portion of terminal expose conductive part expose the conductive part area; With the 4th tooth that is positioned at the 1st altitude datum is benchmark, according to the order increase of the 4th tooth, the 3rd tooth, the 2nd tooth, the 1st tooth.Promptly; The 4th portion of terminal 25a that exposes conductive part area and the wiring substrate 21 of the 2nd execution mode that exposes conductive part 124 of the 4th portion of terminal 25a expose conductive part 124 to expose conductive part area (the 1st benchmark area S1) identical; Make the 3rd portion of terminal 24a ' expose conductive part 123 ' expose the conductive part area; Greater than the 4th portion of terminal 25a expose conductive part 124 expose the conductive part area; Make the 2nd portion of terminal 23a ' expose conductive part 122 ' expose the conductive part area; Greater than the 3rd portion of terminal 24a ' expose conductive part 123 ' expose the conductive part area, make the 1st portion of terminal 22a ' expose conductive part 121 ' expose the conductive part area, greater than the 2nd portion of terminal 23a ' expose conductive part 122 ' expose the conductive part area.
The wiring substrate 21 of the 9th execution mode shown in Figure 12 (c) is with the wiring substrate 21 of the 7th execution mode shown in Figure 12 (a) and the structure of wiring substrate 21 combinations of the 8th execution mode shown in Figure 12 (b).
If the length of four tooth 21a of wiring substrate 21,21b, 21c, 21d is identical; Then away from the tooth that is positioned at the 1st altitude datum (the 1st reference position); The length of tooth is more not abundant; So be difficult to the same position that conductive part is installed in the collector body circumference of exposing, possibly depart from from the installation site of benchmark with portion of terminal.The electric charge that produces at negative electrode active material layer during charging flows via the conductive part that exposes of collector body to portion of terminal.For example, because length is not abundant, depart from laterally and the conductive part 121 that exposes of the 1st portion of terminal 22a is installed on the 1st collector body 4a so compare with the installation site of benchmark.At this moment, the elongated amount of the length of the collector body part that moves with electric charge is corresponding, and the internal resistance (resistance) of the collector body part that electric charge moves increases, and voltage drop increases.Thus, under the situation of the voltage V1 that measures the 1st collector body 4a via the 1st distribution 22, the voltage of the 1st collector body 4a is compared with the voltage of expectation, can reduce and the corresponding amount of the increase of voltage drop.Its result, the voltage Δ V1 of the 1st monocell layer 15a compares with the voltage of expectation, and estimating can be littler.Even the battery behavior of the 1st monocell layer 15a is not unusual, because as stated, the installation site of exposing conductive part 121 of the 1st portion of terminal 22a is compared to distant place with the benchmark installation site and is departed from, and erroneous judgement to be the battery behavior of the 1st monocell layer 15a exist unusually.To this; According to the wiring substrate 21 of the 7th, the 9th execution mode, shown in Figure 12 (a), (c), through making in four teeth tooth away from the 1st altitude datum (the 1st reference position); Promptly; Order according to the 4th tooth 21d, the 3rd tooth 21c ', the 2nd tooth 21b ', the 1st tooth 21a ' makes the length of tooth elongated, can be with the same position that conductive part is installed in the collector body circumference respectively of exposing of four portion of terminal 25a, 24a ', 23a ', 22a '.
Wiring substrate 21 according to the 8th, the 9th execution mode; Shown in Figure 12 (b), (c); In four teeth away from the tooth of the 1st altitude datum (the 1st reference position), promptly in the wiring substrate 21 of the 8th execution mode, according to the order of the 4th tooth 21d, the 3rd tooth 21c, the 2nd tooth 21b, the 1st tooth 21a; In addition; In the wiring substrate 21 of the 9th execution mode, according to the order of the 4th tooth 21d, the 3rd tooth 21c ', the 2nd tooth 21b ', the 1st tooth 21a ', make the front end that is positioned at tooth expose conductive part 124,123 ', 122 ', 121 ' the conductive part area that exposes increases.That is, through making the tooth of tensile stress increase, bonding force is big more, can reduce to follow the tensile stress of vibration, thereby can prevent the broken string of distribution 22,23,24,25.
Figure 40 (a) and (b) are to utilize simple sketch map to represent the figure of the wiring substrate 21 of the 20th execution mode.Wherein, the wiring substrate 21 of Figure 40 (a) can be observed and expose conductive part 121 to 124 1 sides as the paper front side, and Figure 40 (b) can't observe and expose conductive part 121 to 124 1 sides and represent as the paper front side.The insulation division of portion of terminal periphery omits and not expression.And, shown in Figure 40 (a), conductivity adhesive tape 111 to 114 is set in the paper front side of exposing conductive part 121 to 124.On the other hand, Figure 40 (c), (d) utilize simple sketch map to represent the figure of the wiring substrate 21 of the 21st execution mode.Wherein, the wiring substrate 21 of Figure 40 (c) can observe expose conductive part 121 to 124 a side as the paper front side, Figure 40 (d) can't observe a side of exposing conductive part 121 to 124 and represent as the paper front side.The insulation division of portion of terminal periphery omits and not expression.And, shown in Figure 40 (c), conductivity adhesive tape 111 to 114 is set in the paper front side of exposing conductive part 121 to 124.So far the wiring substrate 21 of the 1st to the 9th execution mode of explanation (for after the wiring substrate 21 of the 10th to the 19th the execution mode stated also identical); Periphery in portion of terminal has under the situation of insulation division; If the portion of terminal area is increased, then exposes the conductive part area and also increase.But the structure of portion of terminal is not limited thereto, and increases the portion of terminal area even exist, and exposes the also constant structure of conductive part area.In this case, form at each portion of terminal place to expose conductive part all identical, be the 1st benchmark area S1.To expose the conductive part area all identical no matter the portion of terminal area how, makes, and is that the reason of the 1st benchmark area S1 is, makes that to expose conductive part identical in each portion of terminal with contact resistance between the collector body.
As stated; No matter the portion of terminal area how; Making that to expose the conductive part area all identical, is under the situation of the 1st benchmark area S1, in the simple sketch map of the wiring substrate 21 shown in Figure 40 (a) and (b), (c), (d); Because be difficult for knowing the portion of terminal area, expose the conductive part area, the relation of the bond area of conductivity adhesive tape, so in Figure 41 A, Figure 41 B, represent general profile chart.That is, Figure 41 A be expression the 20th execution mode four portion of terminal 25a, 24a ', 23a ', 22a ' expose the general profile chart of conductive part 124,123,122,121 to the installment state of collector body.Figure 41 B be expression the 20th execution mode four portion of terminal 25a, 24a, 23a, 22a expose the general profile chart of conductive part 124,123,122,121 to the installment state of collector body.
The wiring substrate 21 of the 20th execution mode shown in Figure 40 (a) and (b), Figure 41 A; To make the area that exposes conductive part 121124 all identical in each portion of terminal; Be that the 1st benchmark area S1 is a prerequisite; Make the bond area of four conductivity adhesive tapes 111,112,113,114, according to the order increase of the 4th conductivity adhesive tape the 114, the 3rd conductivity adhesive tape the 113, the 2nd conductivity adhesive tape the 112, the 1st conductivity adhesive tape 111.The portion of terminal area increases according to the order of the 4th portion of terminal 25a, the 3rd portion of terminal 24a ', the 2nd portion of terminal 23a ', the 1st portion of terminal 22a '.In addition, the structure except four portion of terminal and four conductivity adhesive tapes is identical with the wiring substrate 21 of the 8th execution mode shown in Figure 11 (c).
The wiring substrate 21 of the 21st execution mode shown in Figure 40 (c), (d), Figure 41 B; Being all area S3 with the portion of terminal area of four portion of terminal 22a, 23a, 24a, 25a is prerequisite; Make the bond area of four conductivity adhesive tapes 111,112,113,114, according to the order increase of the 4th conductivity adhesive tape the 114, the 3rd conductivity adhesive tape the 113, the 2nd conductivity adhesive tape the 112, the 1st conductivity adhesive tape 111.In addition, the structure except four portion of terminal and four conductivity adhesive tapes is identical with the wiring substrate 21 of the 8th execution mode shown in Figure 11 (c).
Below; Figure 13 is the summary longitudinal section of ambipolar secondary cell 30 that the wiring substrate 41 to 45 of the 10th execution mode is installed, and Figure 14 is a vertical view of observing the part of a part of from the ambipolar secondary cell 30 of wiring substrate 41 to 45 that the 10th execution mode is installed, removing forceful electric power auricle 16,17 from the top.Figure 15 is installed to 30 last times of ambipolar secondary cell at the wiring substrate 41 to 45 with the 10th execution mode, from the observed summary longitudinal section of wiring substrate 41 to 45 sides.In Figure 13, the top is vertical top, and the below is vertical below.
The ambipolar secondary cell 30 of the wiring substrate 41 to 45 of the 10th execution mode is installed, and is the ambipolar secondary cell that is connected in series and constitutes to battery pile 2 shown in Figure 3 through with five (a plurality of) Fig. 1.Here, in order to distinguish five battery pile 2, in Figure 13 below vertical above vertical, be the 1st battery pile the 31, the 2nd battery pile the 32, the 3rd battery pile the 33, the 4th battery pile the 34, the 5th battery pile 35.In addition; In order to distinguish five wiring substrates 21 that are installed in respectively on five battery pile 31 to 35; In Figure 13 below vertical above vertical, be the 1st wiring substrate the 41, the 2nd wiring substrate the 42, the 3rd wiring substrate the 43, the 4th wiring substrate the 44, the 5th wiring substrate 45.
Ambipolar secondary cell shown in Figure 13, actual shown in figure 16.Here, Figure 16 representes 31,32,33 layers of the 1st, the 2nd, the 3rd these three battery pile are closed the local amplification view under the state of (being connected in series), and the layer of the 4th, the 5 two battery pile 34,35 closes part and omits and do not represent.
Shown in figure 16; When the upper layers of the 1st battery pile 31 is closed the 2nd battery pile 32; Make the horizontal direction aligned in position of collector body (the 4th collector body 4d) with the collector body bottom (the 1st collector body 4a) of the 2nd battery pile 32 of the top of the 1st battery pile 31; At the circumference of the horizontal direction of these two collector bodies,, make positive electrode active material layer 5 and negative electrode active material layer 6 insulation through the identical encapsulant 11 that when making, uses with battery pile 31,32; And, between relative positive electrode active material layer 5 of above-below direction and negative electrode active material layer 6, produce certain space.And, through electrolyte, thereby form dielectric substrate 7 at this space filling liquid shape or glue.In order to prevent the relative electric contact of two active material layers (5,6), at the set inside dividing plate (12) of dielectric substrate 7.
Then, when the upper layers of the 2nd battery pile 32 is closed the 3rd battery pile 33, use and the identical method of method of closing the 2nd battery pile 32 in the upper layers of the 1st battery pile 31.Though not shown, when the upper layers of the 3rd battery pile 33 is closed the 4th battery pile 34, and when the upper layers of the 4th battery pile 34 is closed the 5th battery pile 35, also use and the identical method of method of closing the 2nd battery pile 32 in the upper layers of the 1st battery pile 31.Thus, the layer of accomplishing five battery pile 31 to 35 closes.Then, the negative electrode active material layer 6 of the top that is positioned at the 5th battery pile 35 is electrically connected with forceful electric power auricle 16, in addition, the positive electrode active material layer bottom 5 that is positioned at the 1st battery pile 31 is electrically connected with forceful electric power auricle 17.
The laminating method of a plurality of battery pile 2 is not limited to method shown in Figure 16.For example, shown in figure 42, also can battery pile shown in Figure 32 directly be carried out layer and close.
Shown in figure 13, two ends are by 16,17 clampings of forceful electric power auricle about making, and the integral body that will comprise these two forceful electric power auricles 16,17 coats with laminate film (not shown), and by sealing 53 sealings.Forceful electric power auricle 16,17 is actual shown in figure 43.Here, Figure 43 is the oblique view that only takes out 16,17 expressions of two forceful electric power auricles.Two forceful electric power auricles 16,17 form rectangle by flat conductive component, and have protuberance 16a, 17a at one jiao.These two protuberances 16,17 pass the exterior material of ambipolar secondary cell 30 and expose to the outside.
Thus,, five battery pile constituting under the situation of ambipolar secondary cell 30, because each battery pile needs a wiring substrate, so the integral body of ambipolar secondary cell 30 needs five wiring substrates 41 to 45 through being closed (being connected in series) for 31 to 35 layers.These five wiring substrates 41 to 45 shown in figure 13ly need use laminate film to coat integral body, and at some height of above-below direction by sealing 54 sealings.To be positioned at height conduct " the 2nd altitude datum " (the 2nd reference position) of the battery pile of the position that seals five wiring substrates 41 to 45 here.Here; In Figure 13, begin to be made as the 1st wiring substrate the 41, the 2nd wiring substrate the 42, the 3rd wiring substrate the 43, the 4th wiring substrate the 44, the 5th wiring substrate 45 from the below and distinguish being installed in five wiring substrates 41,42,43,44,45 in the ambipolar secondary cell 30.
Figure 17 is mounted in the vertical view of the wiring substrate 41 to 45 of the Comparative Examples 2 on the ambipolar secondary cell 30.At Figure 17 topmost, expression is installed in the vertical view of the 5th wiring substrate 45 on the 5th battery pile 35.In addition; With the yardstick identical with the 5th wiring substrate 45; The vertical view of representing the 4th wiring substrate 44 on the 4th battery pile 34 at the second portion of Figure 17; Represent the vertical view of the 3rd wiring substrate 43 on the 3rd battery pile 33 in the third part of Figure 17, represent the vertical view of the 2nd wiring substrate 42 on the 2nd battery pile 32, represent the vertical view of the 1st wiring substrate 41 on the 1st battery pile 31 at the foot of Figure 17 in the 4th part of Figure 17.
41 to 45, five wiring substrates 41 to 45 of the wiring substrate of Comparative Examples 2 shown in Figure 17 all with wiring substrate 21 same sizes of the 2nd execution mode shown in Fig. 9 (a), identical shaped.That is, all the length with the handle 21g of the 3rd wiring substrate 43 is identical to make the length of handle 21g of the 1st, the 2nd, the 4th, the 5th wiring substrate 41,42,44,45, is the 3rd datum length L3.Therefore, the handle 21g thickness of five wiring substrates 41 to 45 is identical.
Here, because the thickness of handle also is the notion that comprises the width and the thickness of handle, the width and the thickness of handle is defined separately.The width of so-called handle is meant in Figure 17 the width of handle 21g above-below direction.In addition, in Figure 17, handle 21g has certain thickness along the direction that runs through paper.The thickness of so-called handle is meant the thickness of the handle 21g of the direction that runs through this paper.Thickness like carpopodium is identical, then can make the handle chap through the width that increases handle.In addition, identical like the width of carpopodium, then can make the handle chap through the thickness that increases handle.
In addition; In the wiring substrate 41 to 45 of Comparative Examples 2; Because the thickness of five handle 21g and length and portion of terminal to expose the conductive part area all identical; So after being installed to five wiring substrates 41 to 45 on the ambipolar secondary cell 30, shown in figure 13, the relax level of the handle of five wiring substrates is different.Therefore, using under the environment that vibration takes place under the situation of ambipolar secondary cell 30, on not lax relatively handle, comparing, acting on relatively large tensile stress with lax relatively handle.On the handle of the relatively large tensile stress of this effect, to compare with the handle that acts on less relatively tensile stress, the possibility that broken string takes place is high.If on wiring substrate 21, produce broken string, then can't measure the voltage of whole monocell layers accurately.And, as the situation of using ambipolar secondary cell 30 under the environment that produces in vibration, consider the situation that ambipolar secondary cell 30 is carried on automobile.
Therefore, shown in figure 13 as the wiring substrate 41 to 45 of the 10th execution mode, make the wiring substrate that is installed in away from the battery pile of the 2nd altitude datum, the width of wiring substrate handle is wide more.
With reference to Figure 18, the wiring substrate of the 10th execution mode 41 is described to 45 particularly.Figure 18 is the vertical view of the wiring substrate 41 to 45 of the 10th execution mode.The vertical view of representing to be installed in the 3rd wiring substrate 43 on the 3rd battery pile 33 (being positioned at the battery pile of the 2nd altitude datum) on Figure 18 top.In addition; With the yardstick identical with the 3rd wiring substrate 43; Expression is installed in the vertical view of the 2nd, the 4 two the 2nd, the 4 two wiring substrate 42,44 on the battery pile 32,34 in the middle part of Figure 18, representes to be installed in the vertical view of the 1st, the 5 two the 1st, the 5 two wiring substrate 41,45 on the battery pile 31,35 in Figure 18 bottom.
The pectination position 21f that is made up of four tooth 21a, 21b, 21c, 21d and trunk 21e for each wiring substrate 41 to 45 does not change between each wiring substrate 41 to 45, and changes the width of the handle 21g of each wiring substrate 41 to 45, tackles.Promptly; Width at the handle 21g that makes the 3rd wiring substrate 43 is the 2nd datum width W2; When the length that makes the handle 21g of the 3rd wiring substrate 43 is the 3rd datum length L3; Shown in figure 18, make the width of the handle 21g ' of the 2nd, the 4 two wiring substrate 42,44 go out setting, make the handle 21g of the 1st, the 5 two wiring substrate 41,45 than the 2nd datum width W2 is wide " width go out setting than the width of the handle 21g ' of the 2nd, the 4 two wiring substrate 42,44 is wide again.Make handle 21g ', the 21g of the 1st, the 2nd, the 4th, the 5 four wiring substrate 41,42,44,45 " length be all the 3rd datum length L3.
In addition; If making the thickness of the handle 21g of the 3rd wiring substrate 43 (being installed in the wiring substrate on the battery pile that is positioned at the 2nd altitude datum) is the 2nd root thickness, then handle 21g ', the 21g of the 1st, the 2nd, the 4th, the 5 four wiring substrate 41,42,44,45 " also be the 2nd root thickness.And, in the execution mode of following explanation, to the thickness of handle as long as do not specify that then the thickness of five handles is all identical.
In addition; The wiring substrate 41 to 45 of Comparative Examples 2 shown in Figure 17; The width that makes the handle 21g of the 1st, the 2nd, the 4th, the 5 four wiring substrate 41,42,44,45 all is the 2nd identical datum width W2 of width with the handle 21g of the 3rd wiring substrate 43, and to make the thickness of the handle 21g of the 1st, the 2nd, the 4th, the 5 four wiring substrate 41,42,44,45 all be the 2nd identical root thickness of thickness with the handle 21g of the 3rd wiring substrate 43.And the length that makes the handle 21g of the 1st, the 2nd, the 4th, the 5 four wiring substrate 41,42,44,45 all is the 3rd identical datum length L3 of length with the handle 21g of the 3rd wiring substrate 43.
To be installed to the method on the corresponding battery pile 31 to 35 according to five wiring substrates 41 to 45 that aforesaid way constitutes, the method that is installed on the battery pile 31 with wiring substrate 21 with the 1st execution mode is identical.Promptly; Because the length of the handle of five wiring substrates 41 to 45 of the 10th execution mode is identical; So when making the end part aligning of five handles; Shown in figure 13, according to the order of 41,45, the 2nd, the 4 two wiring substrate the 42,44, the 3rd wiring substrates of the 1st, the 5 two wiring substrate that are positioned at both sides, relax level increases.After the battery pile 31 that five wiring substrates 41 to 45 is installed to correspondence is on 35, five wiring substrates 41 to 45 are shown in figure 13, utilize sealing 54 sealings.
The environment that vibration takes place down the battery pile quantity that is connected in series of use be under five the situation of ambipolar secondary cell 30; With wiring substrate 41 to 45 boundlings of Comparative Examples 2 time; Because five the width of the handle 21g of wiring substrate 41 to 45 is all the 2nd datum width W2; So be installed in handle 21g away from the wiring substrate on the battery pile of the 2nd altitude datum (the 2nd reference position); The tensile stress of following vibration and acting on the handle 21g is big more, so the distribution 22,23,24,25 that is formed on the wiring substrate 26 possibly break.To this,, shown in figure 18 according to the wiring substrate 41 to 45 of the 10th execution mode; Article five, in the wiring substrate 41 to 45; According to order away from the wiring substrate of predefined the 2nd altitude datum (the 2nd reference position), that is, and according to the 3rd wiring substrate 43; 2nd, the order of 42,44, the 1st, the 5 two wiring substrates 41,45 of the 4 two wiring substrate makes the width (thickness) of the handle of wiring substrate increase (slightly).Promptly; Wiring substrate 41 to 45 according to the 10th execution mode; Through following the tensile stress that acts on the wiring substrate to increase; Make the width (thickness) of handle increase (slightly), can prevent to be installed in the distribution 22,23,24,25 that is positioned at away from the wiring substrate on the battery pile at the 2nd altitude datum place and break.
According to the wiring substrate that is installed in the 10th execution mode on the ambipolar secondary cell 30 41 to 45,, use the resin collector body that in macromolecular material, uses conductive component for collector body 4a, 4b, 4c, the 4d of five wiring substrates 41 to 45.The resin collector body has elasticity because of comparing with metal current collector; Can be close to more with the conductive part that exposes of the portion of terminal 22a of wiring substrate 21,23a, 24a, 25a; So can relax the tensile stress of following vibration, prevent the broken string of five wiring substrates 41 to 45.
Below; Figure 19 is the summary longitudinal section of ambipolar secondary cell 30 that the wiring substrate 61 to 65 of the 11st execution mode is installed; Figure 20 is a vertical view of observing the part of a part of from the ambipolar secondary cell 30 of wiring substrate 61 to 65 that the 11st execution mode is installed, removing forceful electric power auricle 16,17 from the top; Figure 21 is in the vertical view of the wiring substrate 61 to 65 of the 11st execution mode, replaces the figure of Figure 13, Figure 14, Figure 18.For above vertical, the below is vertical below above in Figure 19 also being.
The wiring substrate 61 to 65 of the 11st execution mode shown in Figure 21; Be that wiring substrate 41 to 45 with the 10th execution mode shown in Figure 180 is a prerequisite; And be installed in handle, make the length of handle of wiring substrate long more away from the wiring substrate on the battery pile of the 2nd altitude datum.Promptly; Shown in figure 21; Width at the handle 21g that makes the 3rd wiring substrate 63 is the 2nd datum width W2; When the length that makes the handle 21g of the 3rd wiring substrate 63 is the 3rd datum length L3; The width that makes the handle 21g ' of the 2nd, the 4 two wiring substrate 62,64 is the width W 2 ' of being wider than the 2nd datum width W2; And make the length of the handle 21g ' of the 2nd, the 4 two wiring substrate 62,64 grow setting Δ L2, make the handle 21g of the 1st, the 5 two wiring substrate 61,65 than the 3rd datum length L3 " width be the width W 2 of being wider than the width W 2 ' of the 2nd, the 4 two wiring substrate 62,64 ", and make the handle 21g of the 1st, the 5 two wiring substrate 61,65 " length grow setting Δ L2 again than the length of the handle 21g ' of the 2nd, the 4 two wiring substrate 62,64.
The environment that vibration takes place down the battery pile quantity that is connected in series of use be under five the situation of ambipolar secondary cell 30; If five the length of the handle 21g of wiring substrate 61 to 65 is all the 3rd datum length L3; Then be installed in handle away from the wiring substrate on the battery pile of the 2nd altitude datum (the 2nd reference position); Follow the tensile stress of oscillating action on handle big more, so the distribution 22,23,24,25 that is formed on the insulated substrate 26 possibly break.To this; According to the wiring substrate 61 to 65 of the 11st execution mode, shown in figure 21, in five wiring substrates 61 to 65; According to order away from the wiring substrate of predefined the 2nd altitude datum (the 2nd reference position); That is, the order of the portion of terminal of the portion of terminal of the 3rd wiring substrate 63,62,64, the 1st, the 5 two wiring substrates 61,65 of the 2nd, the 4 two wiring substrate increases the length of the handle of wiring substrate.Promptly; Wiring substrate 61 to 65 according to the 11st mode; Follow the tensile stress that acts on the wiring substrate to increase; Not only make the width broadening of handle, also elongated through the length that makes handle, can prevent to be installed in the distribution 22,23,24,25 that is positioned at away from the wiring substrate on the battery pile at the 2nd altitude datum place and break.
Figure 22 is the vertical view of ambipolar secondary cell 30 that the wiring substrate 61 to 65 of the 12nd execution mode is installed, and is the figure that replaces the wiring substrate 61 to 65 of the 11st execution mode shown in Figure 21.
The wiring substrate 61 to 65 of the 12nd execution mode; Be that wiring substrate 61 to 65 with the 11st execution mode shown in Figure 21 is a prerequisite; And then be installed in away from the wiring substrate on the battery pile of the 2nd altitude datum, make wiring substrate expose conductive part to expose the conductive part area big more.That is, in the wiring substrate 61 to 65 of the 11st execution mode shown in Figure 21, five wiring substrates 61 to 65, the conductive part area that exposes that exposes conductive part 121 to 124 of its four portion of terminal 22a, 23a, 24a, 25a is the 1st benchmark area S1.On the other hand; In the wiring substrate 61 to 65 of the 12nd execution mode shown in Figure 22; Make four portion of terminal 22a, 23a, the 24a of the 3rd wiring substrate 63, the conductive part area that exposes that exposes conductive part 121 to 124 of 25a be all the 1st benchmark area S1; Make the 2nd, the 4 two wiring substrate 62,64 four portion of terminal 22a-1,23a-1,24a-1,25a-1 expose conductive part 121-1,122-1,123-1,124-1 expose the conductive part area for greater than the 1st benchmark area S1 expose conductive part area S1 ', make four portion of terminal 22a-2,23a-2, the 24a-2 of the 1st, the 5 two wiring substrate 61,65, the conductive part area that exposes that exposes conductive part 121-2,122-2,123-2,124-2 of 25a-2 be the portion of terminal area S1 that exposes conductive part area S1 ' that exposes conductive part 121-1,122-1,123-1,124-1 greater than the 2nd, the 4 two wiring substrate 62,64 ".
The environment that vibration takes place down the battery pile quantity that is connected in series of use be under five the situation of ambipolar secondary cell 30; If on five wiring substrates 61 to 65; The conductive part area that exposes that exposes conductive part of portion of terminal that is positioned at the front end of tooth is all the 1st benchmark area S1; Then be installed in portion of terminal away from the wiring substrate on the battery pile of the 2nd altitude datum (the 2nd reference position); Follow oscillating action big more, so, also possibly break at the conductive part place of exposing of portion of terminal even distribution 22,23,24,25 does not break in the tensile stress of exposing conductive part of the portion of terminal of wiring substrate.To this; According to the wiring substrate 61 to 65 of the 12nd execution mode, shown in figure 22, in five wiring substrates 61 to 65; Order away from the wiring substrate of predefined the 2nd altitude datum (the 2nd reference position); That is,, the conductive part area that exposes that exposes conductive part of portion of terminal of the front end of the tooth that is positioned at wiring substrate is increased according to the order of 62,64, the 1st, the 5 two wiring substrates 61,65 of the 63, the 2nd, the 4 two wiring substrate of the 3rd wiring substrate.Promptly; Wiring substrate 61 to 65 according to the 12nd mode; Through following the tensile stress that acts on the wiring substrate to increase; Not only make the width broadening of handle and make the length of handle elongated, the conductive part area that exposes that exposes conductive part of the portion of terminal of wiring substrate is also increased, thereby can further prevent to be positioned at the broken string that takes place away from the portion of terminal of the wiring substrate on the battery pile at the 2nd altitude datum place being installed in.
Figure 44 is the vertical view of ambipolar secondary cell 30 that the wiring substrate 61 to 65 of the 22nd execution mode is installed, and is the figure that replaces the wiring substrate 61 to 61 of Figure 21, the 11st, the 12nd execution mode shown in Figure 22.
The wiring substrate 61 to 65 of the 22nd execution mode is that the wiring substrate 61 to 65 with the 11st execution mode shown in Figure 21 is a prerequisite; And then be installed in away from the wiring substrate on the battery pile of the 2nd altitude datum, make portion of terminal expose conductive part to expose conductive part area (and conductivity adhesive tape bond area) big more, the width that make the length of tooth longer, to reach tooth is wide more; And; For each wiring substrate, away from the tooth of the 1st altitude datum, make the length of tooth longer, and the width of tooth wide more.Promptly; In the wiring substrate 61 to 65 of the 22nd execution mode shown in Figure 44; For the 3rd wiring substrate 63; Making the conductive part area that exposes that exposes conductive part 124 of the 4th portion of terminal 25a is the 1st benchmark area S1; Make the 3rd portion of terminal 24a ' expose conductive part 123 ' expose the conductive part area greater than the 1st benchmark area S1, make the 2nd portion of terminal 23a ' expose conductive part 122 ' expose the conductive part area greater than the 3rd portion of terminal 24a ' expose conductive part 123 ' expose the conductive part area, make the 1st portion of terminal 22a ' expose conductive part 121 ' expose the conductive part area greater than the 2nd portion of terminal 23a ' expose conductive part 122 ' expose the conductive part area.
In addition; For the 3rd wiring substrate 63; The length that makes the tooth of the 4th tooth 21d is the 1st datum length L1; Make the length of the tooth of the 3rd tooth 21c ' be longer than the 1st datum length L1, the length that makes the length of the tooth of the 2nd tooth 21b ' be longer than the tooth of the 3rd tooth 21c ', the length that makes the length of the tooth of the 1st tooth 21a ' be longer than the tooth of the 2nd tooth 21b '.In addition; For the 3rd wiring substrate 63; The width that makes the tooth of the 4th tooth 21d is the 1st datum width W1; The width that makes the tooth of the 3rd tooth 21c ' is the width of width W 1 of being wider than the tooth of the 4th tooth 21d, makes the width of the tooth of the 2nd tooth 21b ' be the width of the width of the tooth of being wider than the 3rd tooth 21c ', makes the width of the tooth of the 1st tooth 21a ' be the width of the width of the tooth of being wider than the 2nd tooth 21b '.
For the 2nd, the 4th wiring substrate 62,64; Make the 4th portion of terminal 25a-7 expose conductive part 124-7 expose the area S1 ' that expose conductive part area S1 that expose conductive part 124 of conductive part area for the 4th portion of terminal that relates to greater than the 3rd wiring substrate 63 portion of terminal; Make the conductive part area that exposes that exposes conductive part 123-7 of the 3rd portion of terminal 24a-7 be the area that exposes the conductive part area that exposes conductive part 124-7 greater than the 4th portion of terminal 25a-7; Make the conductive part area that exposes that exposes conductive part 122-7 of the 2nd portion of terminal 23a-7 be the area that exposes the conductive part area that exposes conductive part 123-7, make the conductive part area that exposes that exposes conductive part 121-7 of the 1st portion of terminal 22a-7 be the area that exposes the conductive part area that exposes conductive part 122-7 greater than the 2nd portion of terminal 23a-7 greater than the 3rd portion of terminal 24a-7.
In addition; For the 2nd, the 4th wiring substrate 62,64; The length that makes the tooth of the 4th tooth 21d ' is the 1st datum length L1, makes the 3rd tooth 21c " the length of tooth be longer than the 1st datum length L1, make the 2nd tooth 21b " the length of tooth be longer than the 3rd tooth 21c " the length of tooth; make the 1st tooth 21a " the length of tooth be longer than the 2nd tooth 21b " the length of tooth; and making the width of the tooth of the 4th tooth 21d ' is the width W 1 ' of being wider than the 1st datum width W1, makes the 3rd tooth 21c " the width of tooth be the width of the width W 1 ' of the tooth of being wider than the 4th tooth 21d '; Make the 2nd tooth 21b " the width of tooth for being wider than the 3rd tooth 21c " the width of width of tooth, make the 1st tooth 21a " the width of tooth for being wider than the 2nd tooth 21b " the width of width of tooth.
For the 1st, the 5th wiring substrate 61,65; Make the 4th portion of terminal 25a-8 expose conductive part 124-8 expose the area S1 that expose conductive part area S1 ' that expose conductive part 124-7 of conductive part area for the 4th portion of terminal that relates to greater than the 2nd, the 4th wiring substrate 62,64 "; make the conductive part area that exposes that exposes conductive part 123-8 of the 3rd portion of terminal 24a-8 be the area that exposes the conductive part area that exposes conductive part 124-8; to make the conductive part area that exposes that exposes conductive part 122-8 of the 2nd portion of terminal 23a-8 be the area that exposes the conductive part area that exposes conductive part 123-8, make the conductive part area that exposes that exposes conductive part 121-8 of the 1st portion of terminal 22a-8 be the area that exposes the conductive part area that exposes conductive part 122-8 greater than the 2nd portion of terminal 23a-8 greater than the 3rd portion of terminal 24a-8 greater than the 4th portion of terminal 25a-8.
In addition; For the 1st, the 5th wiring substrate 61,65; Make the 4th tooth 21d " the length of tooth be the 1st datum length L1, make the 3rd tooth 21c " ' the length of tooth be longer than the 1st datum length L1, make the 2nd tooth 21b " length of the tooth of ' the length of tooth be longer than the 3rd tooth 21c " '; Make the 1st tooth 21a " length of the tooth of ' the length of tooth be longer than the 2nd tooth 21b " '; And, make the 4th tooth 21d " the width of tooth be to be wider than the 4th tooth 21d that the 2nd, the 4th wiring substrate 62,64 relates to " the width W 1 of width W 1 ' of tooth ", make the 3rd tooth 21c " ' the width of tooth for being wider than the 4th tooth 21d " the width W 1 of tooth " width; Make the 2nd tooth 21b " width of the width of the tooth of ' the width of tooth for being wider than the 3rd tooth 21c " ', make the 1st tooth 21a " width of the width of the tooth of ' the width of tooth for being wider than the 2nd tooth 21b " '.
Figure 23 is the summary longitudinal section of ambipolar secondary cell 30 of wiring substrate 71 to 75 that the 13rd execution mode of the utility model is installed; Figure 24 observes the vertical view of removing the part outside the part of forceful electric power auricles 16,17 from the ambipolar secondary cell 30 of wiring substrate 71 to 75 that the 13rd execution mode is installed from the top; Figure 25 is the vertical view of five wiring substrates of the 13rd execution mode, is the figure that replaces Figure 19, Figure 20, Figure 21.In Figure 23, also be that the top is vertical top, the below is vertical below.
In ambipolar secondary cell 30 shown in Figure 23, be the 2nd altitude datum with the 5th battery pile 35 residing height.If the wiring substrate 71 to 75 of the 13rd execution mode is described, then represent to be installed in the vertical view of the 5th wiring substrate 75 on the 5th battery pile 35 (being positioned at the battery pile of the 2nd altitude datum) at Figure 25 topmost with reference to Figure 25.In addition; In Figure 25 part 2, the 3rd part, the 4th part, the 5th part; With the yardstick identical with the 5th wiring substrate 75, expression is installed in the vertical view of the 4th, the 3rd, the 2nd, the 1st wiring substrate 74,73,72,71 on the 4th, the 3rd, the 2nd, the 1st battery pile 34,33,32,31.
In the wiring substrate 61 to 65 of the 13rd execution mode; With the wiring substrate 61 to 65 of the 11st execution mode shown in Figure 19 likewise; The pectination position 21f that constitutes by four tooth 21a, 21b, 21c, 21d and trunk 21e for each wiring substrate 71 to 75; Through between each wiring substrate 71 to 75, not changing, and change width and the length of handle 21g of the handle 21g of each wiring substrate 71 to 75, tackle.Promptly; Width at the handle 21g that makes the 5th wiring substrate 75 is the 2nd datum width W2; When the length that makes the handle 21g of the 5th wiring substrate 75 is the 3rd datum length L3; Shown in figure 25; The width that makes the handle 21g ' of the 4th wiring substrate 74 is the width W 2 ' of being wider than the 2nd datum width W2; And make the length of the handle 21g ' of the 4th wiring substrate 74 grow setting Δ L3 than the 3rd datum length L3; Make the handle 21g of the 3rd wiring substrate 73 " width be the width W 2 of width of being wider than the handle 21g ' of the 4th wiring substrate 74 "; And make the handle 21g of the 3rd wiring substrate 73 " length grow setting Δ L3 again than the length of the handle 21g ' of the 4th wiring substrate 74, make the handle 21g of the 2nd wiring substrate 72 " ' width be the handle 21g of being wider than the 3rd wiring substrate 73 " the width W 2 of width " length of ', and make the handle 21g of the 2nd wiring substrate 72 " ' is than the handle 21g of the 3rd wiring substrate 73 " and length grow setting Δ L3 again; Make the handle 21g of the 1st wiring substrate 71 " " width be the handle 21g of being wider than the 2nd wiring substrate 72 " ' the width W 2 of width " ", and make the handle 21g of the 1st wiring substrate 71 " " length than the handle 21g of the 2nd wiring substrate 72 " ' length grow setting Δ L3 again.
The wiring substrate 71 to 75 of the 13rd execution mode shown in Figure 25 is installed in the ambipolar secondary cell action effect in 30 last times, and the action effect that is installed in 30 last times of ambipolar secondary cell with wiring substrate 61 to 65 with the 11st execution mode shown in Figure 21 is identical.
Figure 26 is mounted in the vertical view of the wiring substrate 71 to 75 of the 14th execution mode on the ambipolar secondary cell 30, is the figure that replaces the wiring substrate 71 to 75 of the 13rd execution mode shown in Figure 25.The part mark identical label identical in Figure 26 with Figure 25.
The wiring substrate 71 to 75 of the 14th execution mode; Wiring substrate 71 to 75 with the 13rd execution mode shown in Figure 25 is a prerequisite; And be installed in wiring substrate away from the battery pile of the 2nd altitude datum, make portion of terminal expose conductive part to expose the conductive part area big more.That is, in the wiring substrate 71 to 75 of the 14th execution mode shown in Figure 25, make the conductive part area that exposes that exposes conductive part 121 to 124 of 71 to 75, four portion of terminal of five wiring substrates be the 1st benchmark area S1.To this; In the wiring substrate 71 to 75 of the 14th execution mode shown in Figure 26; Make four portion of terminal 22a-3,23a-3, the 24a-3 of the 4th wiring substrate 74, the conductive part area that exposes that exposes conductive part 121-3,122-3,123-3,124-3 of 25a-3 be area S1 ' greater than the 1st benchmark area S1; Make the 3rd wiring substrate 73 four portion of terminal 22a-4,23a-4,24a-4,25a-4 expose conductive part 121-4,122-4,123-4,124-4 expose the conductive part area for greater than the portion of terminal of the 4th wiring substrate 74 expose conductive part expose conductive part area S1 ' expose conductive part area S1 "; make the 2nd wiring substrate 72 four portion of terminal 22a-5,23a-5,24a-5,25a-5 expose conductive part 121-5,122-5,123-5,124-5 expose the conductive part area for greater than the portion of terminal of the 3rd wiring substrate 73 expose conductive part expose conductive part area S1 " expose conductive part area S1 " ', make the 1st wiring substrate 71 four portion of terminal 22a-6,23a-6,24a-6,25a-6 expose conductive part 121-6,122-6,123-6,124-6 expose the conductive part area for greater than the portion of terminal of the 2nd wiring substrate 72 expose conductive part expose conductive part area S1 " ' expose conductive part area S1 " ".
The wiring substrate 71 to 75 of the 14th execution mode shown in Figure 26 is installed in the ambipolar secondary cell action effect in 30 last times, and the action effect that is installed in 30 last times of ambipolar secondary cell with wiring substrate 61 to 65 with the 12nd execution mode shown in Figure 22 is identical.
Below, Figure 27 is the ambipolar secondary cell 30 of expression wiring substrate 61 to 65 that Figure 19, the 11st execution mode shown in Figure 21 are installed and the summary longitudinal section of outside connection status.Figure 28 is the profile diagram that comprises with the ambipolar secondary cell 30 of the wiring substrate 61 to 65 of installation the 11st execution mode of outside coupling part.In Figure 27, the label identical to the part mark identical with Figure 19.
Shown in figure 27; Constitute the integral body of wiring substrate 61 to 65 of 31 to 35, two forceful electric power auricles 16,17 of five battery pile and the 11st execution mode of ambipolar secondary cell 30; Being coated by laminate film 81 (exterior material), is vacuum by sealing 53,54 with inner sealing.Outside at laminate film 81; The handle that exposes 16,17, five wiring substrates 61 to 65 of forceful electric power auricle, i.e. the handle 21g ' of the handle 21g of the 3rd wiring substrate 63, the 2nd, the 4 two wiring substrate 62,64, the handle 21g of the 1st, the 5 two wiring substrate 61,65 ".At these five handle 21g, 21g ', 21g " the end not shown connector is set, via these connectors, be connected with the control circuit 82 that comprises monitoring circuit, balance control circuit etc.
Here; When monitoring circuit charges at ambipolar secondary cell 30; The voltage Δ V1 of voltage measurement the 1st monocell layer 15a that obtains according to the voltage that obtains via the 2nd collector body 4b with via the 1st collector body 4a; The voltage Δ V2 of voltage measurement the 2nd monocell layer 15b that obtains according to the voltage that obtains via the 3rd collector body 4c with via the 2nd collector body 4b; The voltage Δ V3 of voltage measurement the 3rd monocell layer 15c that obtains according to the voltage that obtains via the 4th collector body 4d with via the 3rd collector body 4c, thus respectively five battery pile 31 to 35 are measured and exported.
In the balance control circuit that receives three voltage Δ V1 from five battery pile 31 to 35 of monitoring circuit, Δ V2, Δ V3; So that three voltage Δ V1, Δ V2, Δ V3 distinguish consistent mode on five battery pile 31 to 35, the charging current that in five battery pile 31 to 35, flows into three monocell layer 15a, 15b, 15c is respectively carried out FEEDBACK CONTROL.
The top separately of Figure 29, Figure 31, Figure 33 is the ambipolar secondary cell 30 of expression wiring substrate 91 to 95 that the 15th, the 16th, the 17th execution mode is installed and the summary longitudinal section of outside connection status, and each Figure 26, Figure 32, Figure 34 are that expression comprises the profile diagram with the ambipolar secondary cell 30 of the wiring substrate 91 to 95 of the 15th, the 16th, the 17th execution mode of outside coupling part.These three the 15th, the 16th, the wiring substrate 91 to 95 of the 17th execution mode, the various requirement when being used for satisfying the ambipolar secondary cell 30 that five wiring substrates 91 to 95 will be installed and carrying on the vehicle.
The wiring substrate 91 to 95 of the 15th execution mode shown in Figure 29 is the distortion of the wiring substrate 71 to 75 of the 13rd execution mode shown in Figure 23.That is, the 2nd altitude datum is compared with the situation of the wiring substrate 71 to 75 of the 13rd execution mode shown in Figure 23, be arranged on its vertical top.
At Figure 29; Except the wiring substrate 91 to 95 of ambipolar secondary cell the 30, the 15th execution mode; To comprise monitoring circuit, balance control circuit and also coat, and inner utilization left and right sides sealing 54,55 will be sealed into vacuum by laminate film 81 at interior control circuit 82.In addition, at Figure 30, control circuit 82 is exposed and visible to the outside of laminate film 81, but in fact the also laminated film 81 of control circuit 82 coat.
The wiring substrate 91 to 95 of the 16th execution mode shown in Figure 31; Wiring substrate 91 to 95 with the 15th execution mode shown in Figure 29 is a prerequisite; Increase unusual etc. the distribution 101 of notice lower voltage limit, upper voltage limit, this distribution 101 is exposed the outside of sealing 53 to the left.On the other hand; The wiring substrate 91 to 95 of the 17th execution mode shown in Figure 30; Wiring substrate 91 to 95 with the 15th execution mode shown in Figure 29 is a prerequisite, increases the unusual distribution 102 of notice lower voltage limit, upper voltage limit etc., and this distribution 102 is exposed the outside of sealing 54 to the right.
Here; For five battery pile 31 to 35 that constitute ambipolar secondary cell 30; To input to control circuit 82 via five wiring substrates 91 to 95 from the voltage of four collector body 4a, 4b, 4c, 4d; Utilize the monitoring circuit in the control circuit 82, measure three monocell layer 15a, 15b, the voltage Δ V1 of 15c, Δ V2, the Δ V3 of five battery pile 31 to 35 respectively.If in three monocell layer 15a, 15b, 15c, there be not unusual aspect the battery performance, then these three voltage Δ V1, Δ V2, Δ V3 are positioned at permissible range.In fact, unusual aspect the battery performance may take place in three monocell layer 15a, 15b, 15c.Therefore, if can judge the unusual of the battery performance aspect that produces among three monocell layer 15a, 15b, the 15c, then very convenient.Therefore; For three voltage Δ V1, Δ V2, Δ V3; If preestablish upper voltage limit Vuplmt and lower voltage limit vdownlmt respectively; When then some in three voltage Δ V1, Δ V2, Δ V3 surpasses upper voltage limit Vuplmt or be lower than lower voltage limit Vdownlmt, can judge some the unusual of battery performance aspect that exist among three monocell layer 15a, 15b, the 15c.Promptly; Be provided with voltage Δ V1, Δ V2, Δ V3 and the upper voltage limit Vuplmt of three monocell layer 15a, 15b, 15c and the circuit that lower voltage limit Vdownlmt compares if in control circuit 82, append, can judge then whether three monocell layer 15a, 15b, 15c exist the unusual of battery performance aspect.Export this judged result to outside from control circuit 82 via distribution 101,102.
Figure 35 is the ambipolar secondary cell 30 of expression wiring substrate 61 to 65 that the 18th execution mode is installed and the summary longitudinal section of outside connection status, and Figure 36 is the profile diagram of ambipolar secondary cell 30 that comprises the wiring substrate of installation the 18th execution mode that divides with external connecting.Figure 37 is the profile diagram of ambipolar secondary cell 30 that comprises the wiring substrate of installation the 19th execution mode that divides with external connecting.
The bipolar cell 30 of the wiring substrate 61 to 65 of the 18th execution mode shown in Figure 35 is installed, and is the bipolar cell 30 corresponding variation with the wiring substrate 61 to 65 of installation the 11st execution mode shown in Figure 27 and 28.Promptly; On the bipolar cell 30 of the wiring substrate 61 to 65 that the 11st execution mode shown in Figure 27 and 28 is installed; Forceful electric power auricle 16,17 exposing to the outside from the sealing in left side 53, makes handle 21g, 21g ', the 21g of five wiring substrates 61 to 65 " sealing 54 exposes to the outside from the right side.To this, on the bipolar cell 30 of the wiring substrate 61 to 65 that the 18th execution mode shown in Figure 35 is installed, except handle 21g, 21g ', the 21g of five wiring substrates 61 to 65 ", also sealing 54 exposes to the outside from the right side to make forceful electric power auricle 16,17.Therefore, the part of not exposing to the outside from the sealing 53 in left side.
In this case; The position that sealing 54 takes out two forceful electric power auricles 16,17 from the right side; Can be shown in Figure 36 bottom; Be configured in five handle 21g, 21g ', 21g " the outside, also can be shown in figure 37, make two forceful electric power auricles 16,17 at five handle 21g, 21g ', 21g " a side arrange and take out.
Embodiment
As shown in table 1; For the wiring substrate that is installed on the battery pile, process Comparative Examples 1 and seven embodiment (embodiment 1 to embodiment 7), in addition; For the wiring substrate that is installed on the ambipolar secondary cell, process Comparative Examples 2 and four embodiment (embodiment 8 to 11).
Table 1
Figure DEST_PATH_GSB00000800076500411
Figure DEST_PATH_GSB00000800076500421
Here, in Comparative Examples 1 and embodiment 1 to 7, a wiring substrate is installed on the battery pile, but the pattern of the battery pile of being installed is common in Comparative Examples 1 and embodiment 1 to 7.Likewise, in Comparative Examples 2 and embodiment 8 to 11, five wiring substrates are installed on the ambipolar secondary cell, but the pattern of the ambipolar secondary cell of being installed is common in Comparative Examples 2 and embodiment 8 to 11.Therefore, at first the manufacture method of this battery pile and an ambipolar secondary cell is described.
< making of bipolar electrode >
To use the thickness of carbon granule for electroconductive stuffing is electroconductive polymer thin film (the volume poor efficiency of thickness direction: 1 * 10^ of 50 μ m -1Ω cm), cutting becomes the parts with regulation vertical and horizontal length, forms collector body.
Positive active material uses spinelle LiMnO4; Conductive adjuvant uses acetylene black; Adhesive uses and gathers the inferior ethene VDF of fluorine; Positive active material, conductive adjuvant, adhesive respectively with the proportioning of 85 quality %, 5 quality %, 10 quality %, are added N-methyl pyrrolidone NMP and mixing as slurry viscosity adjustment solvent, the slurry of positive active material is adjusted.
At the single face of above-mentioned collector body, as the gluing portion of Rack, the part outside this gluing portion applies the positive active material slurry with the circumference of collector body (full week), makes it dry, forms positive electrode active material layer.
Negative electrode active material uses hard carbon; Conductive adjuvant uses acetylene black; Adhesive uses and gathers the inferior ethene VDF of fluorine; Negative electrode active material, conductive adjuvant, adhesive respectively with the proportioning of 85 quality %, 5 quality %, 10 quality %, are added N-methyl pyrrolidone NMP and mixing as slurry viscosity adjustment solvent, and the slurry of anticathode active material is adjusted.
With this negative electrode active material slurry; Be coated to the back side of the collector body that is coated with positive active material,, apply the negative electrode active material slurry in part except this gluing portion with the gluing portion of collector body circumference (full week) as Rack; Make it dry, form negative electrode active material layer.Two surfaces that thus, can be adjusted at collector body have the bipolar electrode of positive electrode active material layer and negative electrode active material layer.
<battery pile making >
To two bipolar electrodes up and down; Under the state that disposes according to the relative mode of negative electrode active material layer of the positive electrode active material layer that makes a bipolar electrode and another bipolar electrode; Partition member is set between it; And, for each collector body, through paste the portion of terminal of wiring substrate in an end of collector body; And the polyethylene made membrane that width 30mm is set in the relative gluing portion of two bipolar electrodes up and down of configuration carries out layer with four bipolar electrodes and closes as encapsulant.Accomplish a battery pile thus.Then, encapsulant is exerted pressure (heat and pressure) and bonding along the vertical direction, each layer sealed.
In the space of guaranteeing by the encapsulant that is arranged at above-mentioned gluing portion, inject 10cc at the electrolyte that PC+EC (1: 1) dissolves the LiPF6 of 1M, make sealing become vacuum and welding.
Can coat the part of the Al plate of 100 whole μ m of the perspective plane of bipolar cell key element, and process and have the forceful electric power auricle that extends to the outside part in battery perspective plane.With by this forceful electric power auricle clamping bipolar cell key element and with the mode of its coating, carry out vacuum seal by the aluminum laminate film.Thus, the bipolar cell key element is pressurizeed, accomplish a battery pile (bipolar cell) that improves the contact between forceful electric power auricle battery key element through utilizing atmospheric pressure to push up and down two surfaces.
< making of ambipolar secondary cell >
With the bipolar cell key element configured in series before five clamping forceful electric power auricles, five bipolar cell key elements of this configured in series are sandwiched by above-mentioned forceful electric power auricle, according to the mode of its coating is carried out vacuum seal by the aluminum laminate film.Thus, complete layer closes an ambipolar secondary cell of five battery pile.
Below, the wiring substrate for wiring substrate, Comparative Examples 2 and the embodiment 8 to 11 of Comparative Examples 1 and embodiment 1 to 7 describes respectively.In addition, of the back, in embodiment 6,7,10,11, under the situation of " the conductive part area that exposes that exposes conductive part is increased ", the area of conductivity adhesive tape also with expose the conductive part area and correspondingly increase.That is, when " the conductive part area that exposes that exposes conductive part is increased ", utilize with this increase expose conductive part area conductivity adhesive tape of the same area, expose conductive part and collector body after bonding this increase.Thus, when the conductive part area is exposed in increase, use with increase expose conductive part area conductivity adhesive tape of the same area, be the bonding force that exposes conductive part (portion of terminal) and collector body in order to strengthen.
(Comparative Examples 1)
Making makes the identical wiring substrate (with reference to Fig. 4) of width and the thickness of four teeth wiring substrate of example 1 as a comparison.
(embodiment 1)
The thickness of making four teeth is identical with the wiring substrate of Comparative Examples 1, and makes away from the tooth of the 1st altitude datum, and the wiring substrate (with reference to Fig. 5 or Fig. 9 (a)) that the width of tooth is wide more is as the wiring substrate of embodiment 1.
(embodiment 2)
Making makes away from the tooth of the 1st altitude datum, and the width of tooth is wide more, and makes away from the tooth of the 1st altitude datum, and the thicker of tooth is in the thickness (with reference to Figure 11) of the tooth of the wiring substrate of Comparative Examples 1, as the wiring substrate of embodiment 2.
(embodiment 3)
The thickness of making tooth is identical with the wiring substrate of Comparative Examples 1, makes the width of the tooth that is not in the 1st altitude datum be wider than the wiring substrate (with reference to Fig. 9 (b)) of the width of the tooth that is positioned at the 1st altitude datum, as the wiring substrate of embodiment 3.
(embodiment 4)
The thickness of making tooth is identical with the wiring substrate of Comparative Examples 1; Make the width of the tooth that is not in the 1st altitude datum be wider than the width of the tooth that is positioned at the 1st altitude datum; And the width that makes the tooth at two ends is wider than the wiring substrate (with reference to Fig. 9 (c)) of the width of inboard tooth, as the wiring substrate of embodiment 4.
(embodiment 5)
The thickness of making tooth is identical with the wiring substrate of Comparative Examples 1; Make away from the tooth of the 1st altitude datum, the width of tooth is wide more, makes the tooth away from the 1st altitude datum; The wiring substrate that the length of tooth is long more (with reference to Figure 12 (a)) is as the wiring substrate of embodiment 5.
(embodiment 6)
The thickness of making tooth is identical with the wiring substrate of Comparative Examples 1; Make away from the tooth of the 1st altitude datum, the width of tooth is wide more, and away from the tooth of the 1st altitude datum; What make portion of terminal exposes the big more wiring substrate of conductive part area (with reference to Figure 12 (b)), as the wiring substrate of embodiment 6.
(embodiment 7)
The thickness of making tooth is identical with the wiring substrate of Comparative Examples 1; Make away from the tooth of the 1st altitude datum, the width of tooth is wide more, and makes the tooth away from the 1st altitude datum; The length of tooth is long more; And away from the tooth of the 1st altitude datum, what make portion of terminal exposes the big more wiring substrate of conductive part area (with reference to Figure 12 (c)), as the wiring substrate of embodiment 7.
(Comparative Examples 2)
Make the wiring substrate of five Comparative Examples 1 of set, that is, make the width and identical five wiring substrates (with reference to Figure 17) of thickness of handle, as a comparison five wiring substrates of example 2.
(embodiment 8)
The thickness of making handle is identical with the wiring substrate of Comparative Examples 2, makes away from the wiring substrate of the 2nd altitude datum, and five wiring substrates (with reference to Figure 18) that the width of handle is wide more are as the wiring substrate of embodiment 8.
(embodiment 9)
The thickness of making handle is identical with the wiring substrate of Comparative Examples 2; Make away from the wiring substrate of the 2nd altitude datum, the width of handle is wide more, and makes the wiring substrate away from the 2nd altitude datum; Five wiring substrates (with reference to Figure 21) that the length of handle is longer are as the wiring substrate of embodiment 8.
(embodiment 10)
The thickness of making handle is identical with the wiring substrate of Comparative Examples 2; Make away from the wiring substrate of the 2nd altitude datum, the width of handle is wide more, makes the width of the handle of the wiring substrate at two ends up and down the wideest; And the length of the handle of the wiring substrate at two ends is the longest up and down; And make wiring substrate away from the 2nd altitude datum, the portion of terminal of wiring substrate expose conductive part expose big more five wiring substrates (with reference to Figure 22) of conductive part area, as the wiring substrate of embodiment 10.
(embodiment 11)
Making makes away from the wiring substrate of the 2nd altitude datum, and the length of handle is long more, and the width of the handle at two ends is the wideest up and down; And make wiring substrate away from the 2nd altitude datum, the portion of terminal of wiring substrate expose conductive part to expose the conductive part area big more, the length of tooth is long more; And the width of tooth is wide more; And make away from the tooth of the 1st altitude datum, the length of tooth is long more, and away from the tooth of the 1st altitude datum; Five wiring substrates (with reference to Figure 44) that the width of tooth is wide more are as the wiring substrate of embodiment 11.
According to aforesaid way, the battery pile of the common pattern of the wiring substrate of fabrication and installation Comparative Examples 1 and embodiment 1 to 7.In addition, according to aforesaid way, the ambipolar secondary cell of the common pattern of the wiring substrate of fabrication and installation Comparative Examples 2 and embodiment 8 to 11.
< estimating 1 >
Carry out vibration test in the vertical direction vibration, for each battery pile of the wiring substrate that Comparative Examples 1, embodiment 1 to 7 are installed, and the ambipolar secondary cell that the wiring substrate of Comparative Examples 2, embodiment 8 to 11 is installed, the radical of generation broken string in the inspection distribution.And, be 100% with the radical that broken string takes place in the distribution under the situation of the battery pile of the wiring substrate that Comparative Examples 1 is installed, be illustrated in the radical that broken string takes place in the distribution under the situation of battery pile of the wiring substrate that embodiment 1 to 7 is installed with %, remember in table 2.Likewise; Radical so that broken string to take place in the distribution under the situation of the ambipolar secondary cell of the wiring substrate that Comparative Examples 2 is installed is 100%; Be illustrated in the radical that broken string takes place in the distribution under the situation of ambipolar secondary cell of the wiring substrate that embodiment 8 to 11 is installed with %, remember in table 2.
Table 2
Figure DEST_PATH_GSB00000800076500471
Can know according to table 2, when carrying out vibration test, according to the battery pile of the wiring substrate that embodiment 1 to 7 is installed; Compare with the battery pile of the wiring substrate that Comparative Examples 1 is installed; The radical that broken string takes place in the distribution is decreased to roughly 50%, in addition, and according to the ambipolar secondary cell of the wiring substrate that embodiment 8 to 10 is installed; Compare with the ambipolar secondary cell of the wiring substrate that Comparative Examples 1 is installed, the radical that broken string takes place in the distribution is decreased to roughly 40%.This be because, in battery pile, can be wider than the width of the tooth of the less relatively tensile stress of effect through the width of tooth that makes the relatively large tensile stress of effect, prevent to break in the distribution.Likewise, in ambipolar secondary cell, can be wider than the width of the handle of the less relatively tensile stress of effect, prevent to break in the distribution through the width that makes the handle that acts on relatively large tensile stress.
In addition; Be provided with the wiring substrate of the embodiment 4 of the tooth of comparing wider width with the inboard for two ends; The radical of broken string is decreased to 35%; Be provided with the wiring substrate of the embodiment 11 of the tooth of comparing wider width with the inboard for two ends, the radical of broken string is decreased to 24%, thereby can further prevent the broken string that takes place in the distribution.Can think this be because the effect maximum tensile stress be the tooth place at two ends on the battery pile, and make the width of the tooth at these two ends be wider than the width of inboard tooth.Likewise, can think this be because the effect maximum tensile stress be the handle place of the wiring substrate at two ends up and down on ambipolar secondary cell, and make the width of the handle of the wiring substrate at two ends about this wideest.
Can know in addition, away from the 1st altitude datum, make the width of tooth wide more;, make the length of tooth long more, and make away from the 1st altitude datum away from the 1st altitude datum; Under the situation of the wiring substrate that exposes the big more embodiment 7 of conductive part area (reaching the bond area that causes by the conductivity adhesive tape) that exposes conductive part of portion of terminal; The radical of broken string is 11%, and in 11 embodiment (embodiment 1 to 11), the radical that broken string takes place is minimum.

Claims (14)

1. wiring substrate, it has:
Insulated substrate, it is made up of a pectination position and a connected handle, and this pectination position becomes one by a plurality of teeth with these a plurality of tooth boundlings trunk constitutes;
Many distributions, it is formed on this insulated substrate by electric conducting material, extends to the end of above-mentioned handle respectively from the front end separately of above-mentioned a plurality of teeth, makes the end that conducts to above-mentioned handle with the current potential of the electric conductor of the preceding end in contact of above-mentioned a plurality of teeth; And
Portion of terminal, it makes electric conducting material expose to the front end of above-mentioned a plurality of teeth,
It is characterized in that,
The thickness of above-mentioned a plurality of teeth is different.
2. wiring substrate according to claim 1 is characterized in that,
The thickness of above-mentioned a plurality of teeth begins chap successively from being positioned at outermost tooth.
3. battery pile; It forms anodal through making on a surface of a collector body; Form two bipolar electrodes of negative pole in opposite surfaces, anodal range upon range of across electrolyte according to making with negative pole mode respect to one another, constitute the monocell that constitutes by across electrolytical positive pole and negative pole; Be connected in series a plurality of this monocell and the formation battery pile
The wiring substrate that is used for the voltage detecting of above-mentioned a plurality of monocells comprises following part and constitutes:
Insulated substrate, it is made up of a pectination position and a connected handle, and this pectination position becomes one by a plurality of teeth with these a plurality of tooth boundlings trunk constitutes;
Many distributions, it is formed on this insulated substrate by electric conducting material, extends to the end of above-mentioned handle respectively from the front end separately of above-mentioned a plurality of teeth, makes the end that conducts to above-mentioned handle with the current potential of the electric conductor of the preceding end in contact of above-mentioned a plurality of teeth; And
Portion of terminal, it makes electric conducting material expose to the front end of above-mentioned a plurality of teeth,
Above-mentioned a plurality of portion of terminal are installed to respectively on the corresponding collector body,
It is characterized in that,
Be installed in thickness in above-mentioned a plurality of tooth, be coarser than and be installed in the thickness that is positioned at the 1st reference position or is positioned at the tooth near the collector body the 1st reference position away from the tooth on the collector body of the position of predefined the 1st reference position.
4. battery pile according to claim 3 is characterized in that,
In above-mentioned a plurality of tooth, away from the tooth of above-mentioned the 1st reference position, the thickness of tooth is thick more.
5. battery pile according to claim 3 is characterized in that,
Have certain thickness at above-mentioned each tooth along the direction that is connected in series of above-mentioned monocell, and with the surperficial parallel direction of above-mentioned collector body on have under the situation of certain width,
Make in above-mentioned a plurality of tooth, away from the tooth of above-mentioned the 1st reference position, the width of tooth is wide more, and, away from the tooth of above-mentioned the 1st reference position, the thicker of tooth.
6. battery pile according to claim 3 is characterized in that,
In above-mentioned a plurality of tooth, the tooth that is positioned at two ends is compared slightly with the tooth that is positioned at the inboard.
7. battery pile according to claim 3 is characterized in that,
Above-mentioned each portion of terminal is to the installation site of collector body, for from the end of above-mentioned positive pole or above-mentioned negative pole away from the position of identical distance.
8. according to any described battery pile in the claim 3 to 7, it is characterized in that,
Make in above-mentioned a plurality of tooth, away from the tooth of above-mentioned the 1st reference position, the length of tooth is long more.
9. according to any described battery pile in the claim 3 to 7, it is characterized in that,
Away from the tooth of above-mentioned the 1st reference position, the portion of terminal area of portion of terminal of front end that is positioned at tooth is big more in above-mentioned a plurality of tooth.
10. according to any described battery pile in the claim 3 to 7, it is characterized in that,
Above-mentioned collector body uses the resin collector body that in macromolecular material, has used conductive component.
11. an ambipolar secondary cell, it is with a plurality of the forming that be connected in series of any described battery pile in the claim 3 to 10, it is characterized in that,
In above-mentioned a plurality of wiring substrate, away from the wiring substrate of predefined the 2nd reference position, the thickness of the handle of wiring substrate is thick more.
12. according to the described ambipolar secondary cell of claim 11, it is characterized in that,
In above-mentioned a plurality of wiring substrate, away from the wiring substrate of predefined the 2nd reference position, the length of handle is long more.
13. according to claim 11 or 12 described ambipolar secondary cells, it is characterized in that,
In above-mentioned a plurality of wiring substrate, away from the wiring substrate of above-mentioned the 2nd reference position, the bonding force of portion of terminal and collector body of front end that is positioned at tooth is strong more.
14. according to claim 11 or 12 described ambipolar secondary cells, it is characterized in that,
Above-mentioned collector body uses the resin collector body that in macromolecular material, has used conductive component.
CN2011203265792U 2010-09-01 2011-08-31 Wiring substrate, cell stack and ambipolar secondary cell Expired - Fee Related CN202587596U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN109494408A (en) * 2017-09-13 2019-03-19 本田技研工业株式会社 The collector plate configuration structure of dipolar solid battery
CN110474010A (en) * 2018-05-10 2019-11-19 丰田自动车株式会社 Electrical storage device

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JP6750389B2 (en) * 2016-08-16 2020-09-02 トヨタ自動車株式会社 Bipolar battery
JP7262637B1 (en) 2022-03-01 2023-04-21 三洋化成工業株式会社 bipolar battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109494408A (en) * 2017-09-13 2019-03-19 本田技研工业株式会社 The collector plate configuration structure of dipolar solid battery
CN110474010A (en) * 2018-05-10 2019-11-19 丰田自动车株式会社 Electrical storage device
CN110474010B (en) * 2018-05-10 2022-04-05 丰田自动车株式会社 Electricity storage device

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