CN106611879B

CN106611879B - Coiling body

Info

Publication number: CN106611879B
Application number: CN201610379570.5A
Authority: CN
Inventors: 山口祐介; 大山刚; 坂井田宪彦
Original assignee: CKD Corp
Current assignee: CKD Corp
Priority date: 2015-10-26
Filing date: 2016-06-01
Publication date: 2019-06-04
Anticipated expiration: 2036-06-01
Also published as: CN106611879A; JP6654854B2; JP2017084511A

Abstract

The issue of the present invention is to provide a kind of coiling body, which can more easily judge that coiling body is qualified or not from outside.Cell device (1) as coiling body includes: two electrode slices (4,5), active substance on outside；Shim (2,3), which is formed by insulating materials, for making electrode slice (4,5) be in state of insulation, wherein each (2~5) is wound with the state of coincidence.Electrode slice (4,5) includes piece main part, which is formed by conductive material；Lead adhesive tape portion, terminal part which is set in the piece main part, top portion and is formed by insulating materials.The terminal part of each (2~5), top portion are in circumferentially aligned state, or in the state not being staggered slightly by the covering of the piece of peripheral side or inner circumferential side, respectively.

Description

Coiling body

Technical field

The present invention relates to the coiling bodies for the inside for being such as built in secondary cell etc..

Background technique

For example, being coated with the positive electricity of positive active material in the coiling body of secondary cell for being used as lithium ion battery etc. Pole piece, with the negative electrode plate that is coated with negative electrode active material to be overlapped via two shims formed by insulating materials State winding.

Above-mentioned coiling body is manufactured by following manner, which are as follows: for example, being supplied to rotatable volume for above-mentioned each Core, each is wound in around above-mentioned core (such as referring to patent document 1 etc.).More specifically, in shim with certain degree And roll up in the state in core, two electrode slices are supplied in core to wind each.Then, if each with specified amount and Winding then cuts off two electrode slices.Then, the terminal part of two electrode slices is batched, then, cuts off two shims, later, volume The winding remainder for taking two shims, manufactures coiling body as a result,.

Prior art document

Patent document

Patent document 1:JP 11-No. 265726 bulletins of Japanese Laid-Open Patent Publication

Summary of the invention

Subject to be solved by the invention

But it because generating certain rough sledding etc. in winding, can result from coiling body, each can not normally roll up Around the case where.Then, people consider come from outside from coiling body, according to each terminal part of coiling body, top portion whether Normally exist, judges that coiling body is qualified or not.For example, an electrode slice terminal part, top portion is not located at should deposit originally Position occasion, determine that the reeling condition of said one electrode slice is abnormal, as a result, being determined as that coiling body is unqualified.

But in prior art, without particularly adjusting the position of each terminal part in coiling body, top portion, It is difficult to from the external terminal part etc. for holding each.Especially as above-mentioned prior art, before the winding of electrode slice starts, volume Around occasion as the winding of piece after the completion, is separated, in the terminal part and top portion of coiling body, in only shim The state wound with the length of certain degree.As a result, in appearance, the terminal part with electrode slice, top portion, which are in, is not The state that shim fully covers further has the danger of the terminal part, top portion that are difficult to hold electrode slice.

It is proposed the present invention be directed to above situation, the object of the present invention is to provide can be more easier to sentence from outside Break qualified or not coiling body.

A technical solution to solve project

Subitem ground is illustrated each technical solution for being suitable for solving the above subject below.In addition, as needed, to phase The technical solution answered adds peculiar function and effect.

Technical solution 1. is related to a kind of coiling body, which includes:

Two band-like electrode slices, active substance on outside；

Band-like shim, the shim are formed by insulating materials, for making above-mentioned two electrode slices be in state of insulation, Wherein,

Above-mentioned each is wound with the state of coincidence, which is characterized in that

Above-mentioned electrode slice includes:

Band-like piece main part, the piece main part are formed by conductive material；

Lead adhesive tape portion, the lead adhesive tape portion are set at least terminal part in the piece main part, are formed by insulating materials；

The terminal part of above-mentioned electrode slice is made of above-mentioned lead adhesive tape portion,

Above-mentioned each terminal part is in circumferentially aligned state.

According to above-mentioned technical proposal 1, in coiling body, each terminal part is in the state of alignment.It then, can be from outside It is easy to hold each terminal part of coiling body, and then can easily determine that coiling body is qualified or not from outside.For example, if being positive Normal coiling body, then each terminal part comes across outer peripheral surface with the state being aligned respectively, but if is not at such shape State is then determined as that arbitrary piece generates exception, and coiling body is unqualified.

In addition, according to above-mentioned technical proposal 1, due to passing through lead adhesive tape portion, the terminal part in screening glass main part State, therefore even if still may be used in the case where burr, the arris of the cutting with piece main part result from the terminal part of piece main part Inhibit the phenomenon that these burrs etc. expose.The case where being prevented more reliably as a result, because of burr equivalent damage shim, can seek The quality of coiling body improves.

Technical solution 2. is related to a kind of coiling body, which includes:

Two band-like electrode slices, the active substance on the outside of the electrode slice；

Band-like shim, the shim are formed by insulating materials, for making above-mentioned two electrode slices be in state of insulation；

The above-mentioned each state with coincidence and be wound, and in defined central axis direction extend, which is characterized in that it is above-mentioned Electrode slice includes:

The terminal part of above-mentioned electrode slice is made of above-mentioned lead adhesive tape portion；

Above-mentioned each terminal part is in the piece for being located at inner circumferential side, and relatively other pieces are more to circumferential shape outstanding State, in the section perpendicular with above-mentioned central axis, if from the terminal part positioned at most peripheral in above-mentioned each terminal part Imaginary line is drawn respectively towards above-mentioned central axis with the terminal part for being located at most inner circumferential, then is formed by two above-mentioned imaginary lines Lesser angle in two angles is less than 180 °.

In addition, in other words, " above-mentioned each terminal part is in the piece for being located at inner circumferential side, and relatively other pieces get over edge Circumferential state outstanding " can refer to each terminal part and not be located on the outer side and cover, and respectively at coiling body outside The state exposed on circumferential surface.

According to technical solution 2, in coiling body, each terminal part is respectively to be exposed on outer peripheral surface, and is restrained State in the range of the half amount of outer peripheral surface.Then, the terminal part of each of assurance can be easy from outside, and then can be from outside Easily determine that coiling body is qualified or not.For example, if it is normal coiling body, the half cycle amount of each terminal part in outer peripheral surface In the range of, outer peripheral surface is come across in circumferential state arranged side by side, but if being not at such state, is determined arbitrary Piece generates exception, and coiling body is unqualified.

In addition, according to above-mentioned technical proposal 2, since each terminal part is in the state a little being staggered every time, therefore Stop the occasion of the winding of each terminal part by defined adhesive tape for fixing, can more reliably make the viscous of adhesive tape for fixing Junction is contacted with each.As a result, the stopping of the winding of coiling body can more reliably and strongerly be realized.

In addition, it is identical as above-mentioned technical proposal 1, the terminal part of lead adhesive tape portion screening glass main part, Jin Erke can be passed through It is prevented more reliably the damage of shim.As a result, the raising of the quality of coiling body can be sought.

Technical solution 3. is related to coiling body described in technical solution 2, which is characterized in that above-mentioned angle is less than 90 °.

According to above-mentioned technical proposal 3, on coiling body, each terminal part is in 1/4 week amount for being converged in outer peripheral surface State in range.Then, the terminal part that each can be more easily held from outside, can further be easy to carry out winding The qualified or not judgement of body.

Technical solution 4. is related to coiling body described in the Arbitrary Term in technical solution 1~3, which is characterized in that above-mentioned each Including the different terminal part of the terminal part color of piece abutted from itself.

According to technical solution 4, further can easily hold each terminal part, can seek qualified or not judgement into The facilitation of one step.

Technical solution 5. is related to coiling body described in the Arbitrary Term in technical solution 1~4, which is characterized in that above-mentioned each Terminal part be respectively different colors.

According to technical solution 5, each terminal part further can be easily held, can further be easy to carry out conjunction Judgement whether lattice.

Technical solution 6. is related to a kind of coiling body, which includes:

Two band-like electrode slices, active substance on outside；

Above-mentioned electrode slice includes:

Lead adhesive tape portion, the lead adhesive tape portion are set at least top portion in the piece main part, are formed by insulating materials；

The top portion of above-mentioned electrode slice is made of above-mentioned lead adhesive tape portion；

Above-mentioned each top portion is in circumferentially aligned state.

It, can be from external each top portion for being easy to hold coiling body according to technical solution 6.It can be easy as a result, from outside Judge that coiling body is qualified or not.

In addition, according to technical solution 6, due to by lead adhesive tape portion, the state of the top portion in screening glass main part, Therefore even if it still can inhibit this in the case where burr, the arris of the cutting with piece main part result from the top portion of main part The case where a little burrs etc. expose.It can be prevented more reliably the case where damaging shim because of burr etc. as a result, can seek to wind The quality of body improves.

Technical solution 7. is related to a kind of coiling body, which includes:

Above-mentioned each is wound with the state of coincidence, and is extended in defined central axis direction, which is characterized in that above-mentioned electricity Pole piece includes:

Above-mentioned each top portion is in located on the outer side, and relatively other pieces are more to circumferential shape outstanding State, in the section perpendicular with above-mentioned central axis, if from the top portion positioned at most peripheral in above-mentioned each top portion Imaginary line is drawn respectively towards above-mentioned central axis with the top portion for being located at most inner circumferential, then is formed by two above-mentioned imaginary lines Lesser angle in two angles is less than 180 °.

In addition, so-called, " above-mentioned each top portion is in located on the outer side, and relatively other pieces are more outstanding State " in other words can refer to, and above-mentioned each top portion is not covered by being located at the piece of inner circumferential side, and in the inner circumferential of coiling body The state exposed on face.

According to technical solution 7, in coiling body, each top portion is in be exposed on inner peripheral surface, and is converged on interior The state of the range of the half amount of circumferential surface.Then, can be from external each top portion for being easy to hold coiling body, and then it can be from outer Portion easily determines that coiling body is qualified or not.

In addition, it is identical as above-mentioned technical proposal 6, the top portion of lead adhesive tape portion screening glass main part, Jin Erke can be passed through It is prevented more reliably the damage of shim.As a result, the raising of the quality of coiling body can be sought.

Technical solution 8. is related to coiling body described in technical solution 7, which is characterized in that above-mentioned angle is less than 90 °.

According to above-mentioned technical proposal 8, on coiling body, each top portion is in 1/4 week amount for being converged in inner peripheral surface State in range.Then, the top portion that each can be more easily held from outside, can further be easy to carry out winding The qualified or not judgement of body.

Technical solution 9. is related to coiling body described in any one in technical solution 6~8, which is characterized in that above-mentioned each Piece includes the top portion different from itself top portion color of piece of adjoining.

According to technical solution 9, further can easily hold each top portion, can seek qualified or not judgement into The facilitation of one step.

Technical solution 10. is related to coiling body described in any one in technical solution 6~9, which is characterized in that above-mentioned each The top portion of piece is respectively different color.

According to technical solution 10, each top portion further can be easily held, can be further easy to carry out Qualified or not judgement.

In addition, can also be formed by the technical solution of any one of above-mentioned technical proposal 1~5 and above-mentioned technical proposal 6~ The coiling body of any scheme combination in 10.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram for indicating the structure of cell device；

Fig. 2 is the amplification stereoscopic schematic diagram of the structure of the terminal part of various of expression；

Fig. 3 is the amplification stereoscopic schematic diagram of the structure of the top portion of various of expression；

Fig. 4 is the diagrammatic cross-section of the terminal part for indicating various and the allocation position of top portion；

Fig. 5 is the general configuration figure of winding device；

Fig. 6 is the general configuration figure of winder；

Fig. 7 is the general configuration figure of core；

Fig. 8 is the schematic diagram for indicating the structure of cutting sticker；

The schematic diagram of the movement of cutting sticker when Fig. 9 is for illustrating that piece is cut off；

Figure 10 is the schematic diagram for illustrating the movement of the cutting sticker after piece is cut off；

Figure 11 is the schematic diagram for the movement of cutting sticker when illustrating tape-stripping；

Figure 12 be for illustrate cut off negative electrode plate piece main part after cutting sticker movement schematic diagram；

Figure 13 is the schematic diagram of the state of the piece main part of paste process for indicating protective glue band etc.；

Figure 14 is the schematic diagram of the state of the piece main part of paste process for indicating protective glue band etc.；

Figure 15 is the schematic diagram of the state of the piece main part of paste process for indicating protective glue band etc.；

Figure 16 is the schematic diagram of the state of the piece main part of paste process for indicating protective glue band etc.；

Figure 17 is the schematic diagram of the state of the piece main part of paste process for indicating protective glue band etc.；

Figure 18 is to indicate that the movement that the winding device of various states is wound in the core being located on winding position is said Bright figure；

Figure 19 is to indicate that one of core winds various on one side, shifts to remove position on one side, and the volume of another sky Core shifts to the action specification figure of the winding device of the state of winding position；

Figure 20 is the winding device for indicating to pass through various the state of slit for the empty core for shifting to winding position Action specification figure；

Figure 21 is to indicate to make to be located at the core rotation for removing position, and the movement of the winding device of the state of various of winding is said Bright figure；

Figure 22 is to indicate that protective glue band is set to the action specification figure of the winding device of the state of specified position；

Figure 23 is the action specification figure for indicating to cut off the winding device of the state of each protective glue band and shim；

Figure 24 is the core indicated by removing position, batches the terminal part of shim and electrode slice, and passes through winding The core of position starts the action specification figure of the winding device of the state of various new windings；

Figure 25 is the amplification profile signal for indicating the sticking state of adhesive tape for fixing of the terminal part for various relatively Figure；

Figure 26 is the stereoscopic schematic diagram for indicating the cell device of another embodiment；

Figure 27 is the amplification stereoscopic schematic diagram for indicating the structure of various terminal parts of another embodiment；

Figure 28 is the amplification stereoscopic schematic diagram for indicating the structure of various top portions of another embodiment；

Figure 29 is the diagrammatic cross-section of connection adhesive tape for indicating another embodiment etc..

Specific embodiment

With reference to the accompanying drawings, an embodiment is illustrated.Firstly, to the lithium iron cell element as coiling body Structure be illustrated.

As shown in Figure 1, lithium iron cell element 1 (in the following referred to as " cell device ") passes through following manner system It makes, which are as follows: via two shims 2,3, electrode film 4 and negative electrode plate 5 are wound with the state of coincidence.Cell device 1 in the cylindrical shape extended in the direction central axis CL1.In addition, below, for ease of description, by shim 2,3 and electrode slice 4, 5 are referred to as " various 2~5 ".

Shim 2,3 in having the band-like of same width, is made of, to prevent respectively the insulator of polypropylene (PP) etc. It contacts with each other between different electrodes 4,5, generate short-circuit situation.

Electrode slice 4,5 have with the essentially identical width of shim 2,3, as Fig. 2 and it is shown in Fig. 3, including piece master Body portion 4A, 5A and lead adhesive tape portion 4B, 5B, piece main part 4A, the 5A are formed by laminal conductive material, the lead adhesive tape Portion 4B, 5B are set to the both ends of piece main part 4A, 5A, are formed by insulating materials (for example, polypropylene etc.).In addition, Fig. 2 is figure The enlarged diagram of region AR1 in 1, Fig. 3 are the enlarged diagram of the region AR2 in Fig. 1.In addition, in Fig. 2, Fig. 3 etc., 4B, 5B are indicated in a simplified manner in lead adhesive tape portion.

The piece main part 4A of electrode film 4 is made of such as aluminium foil, applies positive-active on its inside and outside two surface Substance (for example, lithium manganate particle etc.).The piece main part 5A of negative electrode plate 5 is made of such as copper foil, in its inside and outside two table Negative electrode active material (such as activated carbon etc.) is applied on face.In addition, can be carried out between two electrode slices 4,5 via active material Ion exchange.More specifically, in charging, ion is from 4 sidesway of electrode film to 5 side of negative electrode plate, in electric discharge, ion From 5 sidesway of negative electrode plate to 4 side of electrode film.In addition, in the present embodiment, the length of the piece main part 5A of an element amount Greater than the piece main part 4A of an element amount.

In lead adhesive tape portion 4B, 5B, it is specified that protective glue band 100 (referring to Fig. 7) be cut off, the protective glue band 100 is viscous Be affixed on the outside and inner face of lead adhesive tape portion 4A, 5A, be formed by insulating materials, covering and the two of screening glass main part 4A, 5A End.In the present embodiment, the length of lead adhesive tape portion 5B is less than lead adhesive tape portion 4B.

In addition, in the present embodiment, in the periphery of cell device 1, for various 2~5 terminal parts, in Piece positioned at inner circumferential side, relatively other pieces get over circumferentially state outstanding (referring to Fig. 2).That is, various 2~5 terminal parts It is not covered by located on the outer side, is respectively at the state exposed on the outer peripheral surface of cell device 1.

On the other hand, in the inner circumferential of cell device 1, for various 2~5 top portions, in being located on the outer side Piece, relatively other pieces more circumferentially state outstanding (referring to Fig. 3).That is, various 2~5 top portions are not by being located at The piece of inner circumferential side covers, and is respectively at the state exposed to the inner peripheral surface of cell device 1.

Further more, in the present embodiment, various 2~5 each terminal parts are in the way of meeting following positional relationships Setting.That is, as shown in Figure 4, in the section orthogonal with above-mentioned central axis CL1, from various 2~5 terminal parts The terminal part positioned at most peripheral and the terminal part positioned at most inner circumferential draw imaginary line VL1, VL2 towards above-mentioned central axis CL1. At this point, the lesser angle, θ 1 in two angles formed by two imaginary lines VL1, VL2 is less than 180 °.In the present embodiment, Above-mentioned angle, θ 1 is less than 90 °.

On the other hand, various 2~5 each top portions are arranged in the way of meeting following positional relationships.That is, with In above-mentioned central axis CL1 orthogonal section, from positioned at the top portion of most peripheral and being located in various 2~5 each top portions The top portion of most inner circumferential draws imaginary line VL3, VL4 towards above-mentioned central axis CL1.At this point, by two imaginary line VL3, VL4 shapes At two angles in lesser angle, θ 2 less than 180 °.In the present embodiment, above-mentioned angle, θ 2 is less than 90 °.

In addition, various 2~5 terminal parts are respectively different colors.For example, constitute the terminal part of electrode film 4 The color of lead adhesive tape portion 4B is red, and the color for constituting the lead adhesive tape portion 5B of the terminal part of negative electrode plate 5 is yellow, is separated The color of the terminal part of piece 2 is blue, and the color of the terminal part of shim 3 is purple.

In addition, similarly for various 2~5 top portions, respectively different colors.In addition, in the present embodiment, The whole region of shim 2,3 is same color.Obviously, various 2~5 terminal parts, the color of top portion are not limited to The example enumerated is stated, can be suitably changed.

In addition, in multiple positive wires not shown in the figure from width direction one end of electrode film 4 (piece main part 4A) Portion is stretched out, and in multiple negative wires not shown in the figure from the width direction other end of negative electrode plate 5 (piece main part 5A) Edge stretches out.

When obtaining lithium ion battery, the cell device 1 of winding is set to the battery case of metal tubular (in figure Be not shown) inside, and collect above-mentioned positive wire and negative wire respectively.In addition, the positive wire collected and anode The connection of terminal component (not shown in FIG.), the identical negative wire collected and negative wire terminal component are (in figure not Show) it connects, two terminal components are arranged in the way of the both ends open for closing above-mentioned electronic POD, can get lithium as a result, Ion battery.

The winding device 10 for manufacturing cell device 1 is illustrated below.As shown in Figure 5, winding device 10 include: the winder 11 for winding various 2~5；Electrode film for electrode film 4 to be supplied to winder 11 supplies To mechanism 31；For negative electrode plate 5 to be supplied to the negative electrode plate feed mechanism 41 of winder 11；For by 2,3 points of shim It is not supplied to the separator feed mechanism 51,61 of winder 11.In addition, above-mentioned winder 11, each feed mechanism 31,41,51,61 Deng winding device 10 in various mechanisms be basically by defined controller 89 carry out action control structure.

In the most upstream side of electrode film feed mechanism 31, a piece main part 4A winds the positive electrode of composition in web-like Tablet raw material volume 32 is supported in a rotatable way, and from here, piece main part 4A suitably stretches out.

In addition, from electrode film stock roll 32 to the midway of the conveying channel of the electrode film 4 of winder 11, according under Swim the sequence that side is risen, the 1st dispatch roller 84 of setting, buffer gear 85, the 2nd dispatch roller 86 and cutting sticker 87.

Before the explanation of the 1st dispatch roller 84 etc., cutting sticker 87 is illustrated first.

Using cutting sticker 87, after the piece main part 4A that cutting is stretched out from electrode film stock roll 32, according to general The mode connected between the cut-off part of adjacent piece main part 4A pastes protective glue band 100, to obtain each main part 4A passes through the concatenated band-like electrode film 4 of protective glue band 100.Then, which is successively shipped for and is located at cutting The 2nd dispatch roller 86 in the downstream side of sticker 87, buffer gear 85 etc..

Sticker 87 is cut off as shown in Fig. 8 etc., including cutting mechanism 90, which cuts off from positive electricity The piece main part 4A that pole piece stock roll 32 is stretched out；Mechanism 91 is held, which holds when cutting mechanism 90 is cut off Hold piece main part 4A；Protective glue band 100 is pasted on the quilt of piece main part 4A by tape-stripping mechanism 92, the tape-stripping mechanism 92 In cut-off parts.

Cutting mechanism 90 is by positioned at the upper sword 90a of the upside of piece main part 4A and under the downside of piece main part 4A Sword 90b constitute, and each sword 90a, the 90b with can keep out of the way piece main part 4A conveying channel in place of mode constituted.

Holding mechanism 91 includes upstream side holding part 91a and downstream side holding part 91b, and upstream side holding part 91a can be in Piece main part 4A is held in the upstream side of cutting mechanism 90, and downstream side holding part 91b holds piece in the downstream side of cutting mechanism 90 Main part 4A, and hold mechanism 91 according to upstream side holding part 91a can opposing downstream side holding part 91b, along piece main part 4A Conveying channel and the mode retreated constitute.

More specifically, upstream side holding part 91a, can be in opposite downstream according to by driving mechanism not shown in the figure Retreating position that side holding part 91b is opened with suitable distance interval and closest to downstream side holding part 91b closest between position Mobile mode is constituted.That is, each holding part 91a, 91b along piece carriage direction court to leave each other, close direction opposite can be moved Dynamic mode is constituted.Also, each holding part 91a, 91b include upper and lower a pair of fixture, according to can be by drive not shown in the figure Motivation structure, the mode which is opened and closed movement are constituted, and herein, omit label for convenience.

Tape-stripping mechanism 92 includes: upper maintaining part 92a, and maintaining part 92a can be in the top position of piece main part 4A on this And keep protective glue band 100；Lower maintaining part 92b, the lower maintaining part 92b can in piece main part 4A lower position and keep protecting Adhesive tape 100, the tape-stripping mechanism 92 is according to by driving mechanism not shown in the figure, each maintaining part 92a, 92b edge respectively Up and down direction and the mode for carrying out lifting action is constituted.

Back to Fig. 5, the 1st dispatch roller 84 include the roller 84a a pair of up and down being connect in motor not shown in the figure, 84b clamps electrode film 4 by two rollers 84a, 84b according to one side, on one side just corresponding to the coiling action dispatch of winder 11 The mode of electrode slice 4 is constituted.

On the other hand, the 2nd dispatch roller 86 is used for one side dispatch electrode film 4, on one side by the paste position of protective glue band 100 Be positioned at cutting sticker 87 on, including with motor not shown in the figure connect up and down a pair roller 86a, 86b, with In encoder not shown in the figure etc..In addition, the 2nd dispatch roller 86 clamps electrode film by two rollers 86a, 86b according to one side 4, on one side according to the control from controller 89, constituted in a manner of intermittent mode dispatch electrode film 4.

Buffer gear 85 includes: with the measuring roller 85a in encoder not shown in the figure；Driven voller 85b；Dance roller 85c, dance roller 85c are set between two rollers 85a, 85b in a manner of it can be subjected to displacement in above-below direction, are had and are absorbed just Dispatch amount of the electrode slice 4 with respect to winder 11, the effect with the difference of the dispatch amount of the electrode film 4 of the 2nd dispatch roller 86.In addition, Buffer gear 85 is also used for applying defined tension to the electrode film 4 wound, the tension for the relaxation for preventing electrode film 4 is applied Add mechanism.

Controller 89 is illustrated below.Controller 89 includes CPU as arithmetical organ, the various programs of storage The RAM of the various data of ROM, interim storage operational data or inputoutput data etc., hard disk of long-term storage operational data etc.. The movement of two dispatch rollers 84,86 or cutting sticker 87 is controlled by controller 89.For example, in controller 89 In, it is prerecorded with the setting value of the length of the electrode slice 4 of a cell device amount 1, in the setting value and the 2nd dispatch roller 86 When the dispatch amount of electrode slice 4 is equal, stop the movement of the 2nd dispatch roller 86.When the movement stops, by cutting off sticker 87, carry out the cutting of piece main part 4A or the stickup of protective glue band 100.

Negative electrode plate feed mechanism 41 and separator feed mechanism 51,61 are illustrated below.

In the most upstream side of negative electrode plate feed mechanism 41, the negative electrode plate that a piece main part 5A is wound in web-like is former Material volume 42 is supported in a rotatable way, from here, suitably pulls out piece main part 5A.

In addition, the midway of the conveying channel in the negative electrode plate 5 from negative electrode plate stock roll 42 to winder 11, with positive electricity The conveying channel of pole piece 4 is identical, the 1st dispatch roller 84 of setting, buffer gear 85, the 2nd dispatch roller 86 and cutting sticker 87 etc.. Due to the 1st dispatch roller 84, buffer gear 85, the 2nd dispatch roller 86 and cutting sticker 87 etc. various structures be set to Structure on the conveying channel of electrode film 4 is identical, therefore its specific description is omitted.

Separator feed mechanism 51,61 respectively include shim 2,3 in web-like and wind composition separator stock roll 52, 62。

Separator stock roll 52,62 is supported in a manner of rotatable, from here, suitably extracts shim 2,3 out.

In addition, in the setting of the midway of various 2~5 supply passageways converge various 2~5 a pair of of guide roller 88a, 88b's etc., for various 2~5 various guide rollers being oriented to (label omission).

In addition, in the present embodiment, to pass through from guide roller 88a, 88b, shim 2,3 and two electrode slices 4, The mode that 5 states being overlapped, the protective glue band 100 of electrode film 4 and the protective glue band 100 of negative electrode plate 5 are overlapped sets each electricity The length etc. of the conveying channel of pole piece 4,5.

The structure of winder 11 is specifically described below.As shown in Figure 6, winder 11 includes: discoid Turntable 12, the turntable 12 by such a way that driving mechanism not shown in the figure rotates can be arranged；Two core 13, 14, in the direction of rotation of the turntable 12, it is arranged with 180 ° of interval；Two backing rolls 15A, 15B, two backing roll 15A, 15B is respectively arranged at the opposite core 13,14, in the direction of rotation of turntable 12, the position being staggered with basic 90 °；Piece cutting Device 16, the piece cutter 16 is for cutting off shim 2,3 and protective glue band 100；Pressing roller 17, the pressing roller 17 are each for pressing Kind piece 2~5；Adhesive-band sticking device 18, the adhesive-band sticking device 18 is for pasting defined adhesive tape for fixing 110 (referring to Figure 25).

Core 13,14 is respectively used to batch various 2~5 in the peripheral side of itself, according to can be by being not shown in the figure Driving mechanism, constituted in the way of rotating by the central axis of itself as rotary shaft.In addition, core 13,14 is with can be along turntable 12 Axis direction (the paper depth direction of Fig. 6 etc.), the mode haunted with respect to the turntable 12 is arranged.

Core 13 (14) as shown in Figure 7, respectively includes the axis direction (the paper depth direction of Fig. 7) along itself And extend a pair of of chip 13A, 13B (14A, 14B), this between chip 13A, 13B (14A, 14B) formed can make various 2~5 slit 13S (14S) passed through.

In addition, core 13 (14) includes in fixed various 2~5 clamp mechanisms in the inside of slit 13S (14S) 13T(14T)。

Clamp mechanism 13T (14T) is made of pipe 131 (141) and air supply output mechanism, the section of the pipe 131 (141) In basic hexagonal shape, portion has space in the inner, and air supply output mechanism is being not shown in the figure, with the pipe 131 (141) it connects.The figure middle and upper part of pipe 131 (141) constitutes adhesive portion 132 (142), the adhesive portion 132 (142) and chip 13A (14A) bonding.In addition, figure middle and lower part in pipe 131 (141) constitutes adhesive portion 133 (143), the clamping part 133 (143) with The mode that another chip 13B (14B) faces is arranged.

In addition, the supply of the air of the inner space of pipe 131 (141) can be carried out in above-mentioned air supply output mechanism, With the discharge of the air of the opposite inner space.Then, pipe 131 (141) is swollen in such a way that its inner space is supplied air It is swollen, protrude above-mentioned clamping part 133 (143) with respect to a chip 13A (14A).In addition, pipe 131 (141) is by will be inside this The mode of the air discharge in space reduces, which haunts the recess portion 134 of a chip 13A (14A) (144).With this configuration, clamp mechanism 13T (14T) can clamp various 2 across chip 13A, 13B (14A, 14B) ~5.In addition, to be greater than actual wall thickness, indicating various 2~5 in Fig. 7 etc..

Back to Fig. 6, core 13 (14) according to the rotation for passing through turntable 12, can winding position P1 and remove position P2 it Between and the mode of rotary motion is constituted.

Winding position P1 is the position that various 2~5 are wound in core 13,14, from above-mentioned each feed mechanism 31, 41,51,61 winding position P1 is supplied to by various 2~5 respectively.

Removing position P2 is the position for removing various 2~5 (i.e. cell device 1) after winding.Removing position The peripheral portion of P2 is arranged and removes device (diagram omit) etc. for remove cell device 1 from core 13,14.

Backing roll 15A, 15B be used for by various 2~5 hang around and be supported on shift to the core 13,14 for removing position P2 with Between above-mentioned feed mechanism 31,41,51,61.

Piece cutter 16 is set near winding position P1, can be moved into for cut off close to turntable 12 shim 2, 3 and protective glue band 100 off-position, with and turntable 12 leave, do not interfere the retreating position of the movement of core 13,14.

Pressing roller 17, which is set to, to be removed near the P2 of position, is constituted in the way of it can be moved into following positions, the position Respectively, various 2~5 approximated positions are pressed close to turntable 12；It left from turntable 12, interfere the shifting of core 13,14 Dynamic retreating position.

Adhesive-band sticking device 18, which is set to, to be removed near the P2 of position, is had after winding, close to turntable 12, will be fixed The function of various 2~5 terminal parts is pasted on adhesive tape 110 (referring to Figure 24).

In addition, winder 11 includes the 1st video camera 19, the 2nd video camera 20 and judgment means 21, volume is wound in check Cell device 1 on core 13 (14).

1st video camera 19 is towards the side for being set to the core 13 (14) for removing position P2, to being wound in the core 13 (14) outer peripheral surface of the cell device 1 on is shot.By the 1st video camera 19, on the outer peripheral surface of cell device 1 Various 2~5 terminal parts are shot.

2nd video camera 20 is set to the position opposite with the front end of removing the core on the P2 of position 13 (14) is located at, right The axial one end for the cell device 1 being wound in the core 13 (14) is shot.It is electric to being located at by the 2nd video camera 20 Various 2~5 top portions on the inner peripheral surface of pond element 1 are shot.

The shooting image of video camera 19,20 is converted to digital signal in the inside of video camera 19,20, then with number letter Number format, be input in judgment means 21.

In addition, when video camera 19,20 is shot, from lighting device not shown in the figure, to the outer peripheral surface of cell device 1 With an end face, defined light (such as visible light etc.) is irradiated.In addition, in the present embodiment, two video cameras 19,20 pass through can Identify that the colourful CCD video camera of color is constituted.

Judgment means 21 are constituted as so-called computer system, according to the shooting inputted from two video cameras 19,20 Image judges whether various 2~5 terminal parts and top portions are normal.Then, according to the judgment result, judge cell device 1 Itself is qualified or not.

For example, normally there is various 2~5 terminals respectively from the shooting image that the 1st video camera 19 inputs Portion, and from the shooting image that the 2nd video camera 20 inputs, normally there is the field of various 2~5 top portions respectively It closes, cell device 1 is determined as qualified product.In addition, whether the terminal part etc. according to various 2~5 normally exists, for example it is It is no to indicate 4 different colors in shooting image, if can to detect for 4 times and be equivalent to arris part of terminal part etc. etc. and sentence It is disconnected.

On the other hand, from the shooting image that the 1st video camera 19 inputs, there is no the arbitrary pieces in various 2~5 Terminal part (can not identification terminal portion) occasion, from the shooting image that the 2nd video camera 20 inputs, be not present any Top portion (can not identification terminal portion) occasion, cell device 1 is determined as unqualified.Qualified or not judging result is deposited It is stored in the memory (such as hard disk etc.) of judgment means 21.

Judging the underproof occasion of cell device 1, judgment means 21 by the signal for belonging to underproof content export to It is above-mentioned to remove device.Then, removing device and being determined as that underproof cell device 1 is removed for signal is had input, then, discharge To in rejected product receptacle not shown in the figure.

The manufacturing method of the cell device 1 using above-mentioned winding device 10 is illustrated below.

Firstly, for pasting protective glue band 100 on piece main part 4A, 5A, being connected in series piece by protective glue band 100 The process of main part 4A, 5A are concretely demonstrated using the occasion of piece main part 4A as example.In addition, 100 phase of protective glue band It is essentially identical to the stickup process of piece main part 5A and the stickup process of 100 opposite panel main part 4A of protective glue band, but have The difference (point is illustrated later) of a part.

If as describing below, in the state by clamp mechanism 13T (14T) fixed electrode film 4, then the 1 dispatch roller 84 stops, and on the other hand the 2nd dispatch roller 86 continues spinning movement, as a result, the electrode film 4 of dispatch upstream side. During this period, in buffer gear 85, the electrode film 4 of dispatch amount is stored in dance roller 85c decline.Herein, after at least In the sticking operation for the protective glue band 100 stated (in the stopping of the 2nd dispatch roller 6), storage passes through 84 dispatch of the 1st dispatch roller Amount.

In addition, if starting the coiling action of next element amount, the 1st dispatch roller 84 and the 2nd row by winder 11 It send roller 86 synchronously to rotate, from 32 dispatch piece main part 4A of electrode film stock roll, and electrode slice 4 is successively shipped for winding Portion 11.

Then, if according to the measured value for the encoder being set on the 2nd dispatch roller 86, judgement passes through winder volume 11 The division position X1 (referring to 13) of the piece main part 4A of the element amount taken reaches cutting sticker 87 (cutting mechanism 90) Specified position, then the 2nd dispatch roller 86 stop.On the other hand, the 1st dispatch roller 84 continues spinning movement, winder 11 Winding operation unceasingly carries out.Then, stop in the 2nd dispatch roller 86, during the 1st dispatch roller 84 rotates, in buffer gear 85 In, dance roller 85c rises, the electrode film 4 that dispatch has been stored.

If the 2nd dispatch roller 86 stop, as a result, the electrode film 4 (piece main part 4A) of upstream side transport stop, then as Shown in Fig. 9 the upstream side holding part 91a and downstream side holding part 91b of grip mechanism 91 drive like that, pass through cutting mechanism 90 Upstream side and downstream side hold piece main part 4A.Then, like this, the state of piece main part 4A is held, drives cutting machine Structure 90, in above-mentioned division position X1 cut off machine main part 4A.

After piece cutting, each sword 90a, 90b of cutting mechanism 90 keep out of the way except the conveying channel of electrode film 4, and As shown in Figure 10, the state of piece main part 4A is held in each holding part 91a, 91b of grip mechanism 91, only upstream side Holding part 91a shifts to piece carriage direction upstream side (right side of Figure 10).As a result, in the upstream side for the piece main part 4A having been turned off Divide between 4c and downstream side part 4d, is formed gap 4e (referring to Fig.1 4).In addition, during this period, being filled in advance from defined supply It sets, protective glue band 100 is supplied to two maintaining parts 92a, 92b of tape-stripping mechanism 92.

It is between the upstream part 4c of piece main part 4A and downstream side part 4d, after forming gap 4e, as Figure 11 institute As showing, two maintaining parts 92a, 92b of the tape-stripping mechanism 92 of protective glue band 100 are maintained respectively to piece main part 4A Side movement.It is in following states as a result, that is, connect with downstream side part 4d according to by the upstream part 4c of piece main part 4A Mode paste protective glue band 100 respectively from two surfaces inside and outside piece main part 4A, and in the part of gap 4e, two Protective glue band 100 is mutually bonded (referring to Fig.1 5).

Then, if cutting mechanism 90, grip mechanism 91 and tape-stripping mechanism 92 are respectively back to original state (ginseng According to Fig. 8), the sticking operation of protective glue band 100 terminates, then the 1st dispatch roller 84 and the 2nd dispatch roller 86 synchronous rotary again.Then, Towards the downstream side for pasting cutter 87, be carried through protective glue band 100 and be connected in series piece main part 4A one just Electrode slice 4.

In addition, in sticking operation of the protective glue band 100 on piece main part 5A, as shown in Figure 12, upstream side Holding part 91a is less than protective glue band 100 on piece main part 4A to the amount of movement on piece carriage direction upstream side (right side of Figure 12) Sticking operation when the amount of movement.As a result, in the upstream part 5c and downstream side part 5d of the piece main part 5A having been turned off Between, form the gap 5e (referring to Fig.1 6) for being less than above-mentioned gap 4e.Then, less than the protective glue being pasted on piece main part 4A Protective glue band 100 with 100 is distinguished in the way of connecting the upstream part 5c of piece main part 5A with downstream side part 5d It is pasted on inside and outside two surfaces of piece main part 5A (referring to Fig.1 7).

Then, the winding process of the cell device 1 of winder 11 is concretely demonstrated.Herein, to from respect to one The stage that a core 13 is nearly completed the winding of various 2~5 of a cell device amount starts to relatively another core 14 The process for winding various 2~5, is specifically described.

If being located relatively at a core 13 of winding position P1, various 2~5 are wound with specific length (referring to figure 18) coiling action of core 13, is not then stopped, turntable 12 rotates.In addition, in the present embodiment, negative electrode plate 5 is located at positive electricity The peripheral side of pole piece 4 carries out the winding of core 13,14.

With the rotation of turntable 12, a core 13 winds various 2~5 on one side, shifts to remove the position side P2 on one side, and And another core 14 shifts to the side winding position P1 (referring to Fig.1 9) in the state submerged with respect to turntable 12.

Then, if position P2 is removed in the arrival of core 13, another core 14 reaches winding position P1, then stops turntable 12 spinning movement and the spinning movement of core 13.If being in the state, it is arranged from guide roller 88a, 88b to core 13 Various 2~5 hang be around on backing roll 15A, between backing roll 15A and guide roller 88a, 88b, various 2~5 are in The state stretched as the crow flies.

In addition, reaching the original state of winding position P1 in another core 14, it is arranged in above-mentioned backing roll 15A and guide roller Various 2~5 longitudinal directions between 88a, 88b are in substantially parallel shape with the perforation direction of the slit 14S of another core 14 State.

In the state, another core 14 is protruded with respect to turntable 12.Above-mentioned another volume is passed through in various 2~5 as a result, The state of the inside of the slit 14S of core 14 (referring to Figure 20).In addition, above-mentioned clamping part 143 submerges a chip in the state In the above-mentioned recess portion 144 of 14A.

Then, make to be located at a chip 13 rotation for removing position P2 again, start again at various 2~5 winding (ginsengs According to Figure 21).With starting again at for winding, each protective glue band 100 of each electrode slice 4,5 is at leisure close to another core 14.Separately Outside, at the time of each protective glue band 100 passes through guide roller 88a, 88b, each protective glue band 100 is in the state to overlap.

In addition, carrying out the winding of a core 13, not showing in winder 11 (core 13) in figure is set in basis The measured value of encoder out, the regulation being pasted between each protective glue band 100 arrival core 13,14 on each electrode slice 4,5 When position, stop the coiling action of a core 13 (referring to Figure 22).

Then, the clamp mechanism 14T of another core 14 is driven, it is various 2~5 fixed.In addition, passing through pressing roller simultaneously 17, press various 2~5 (referring to Figure 23) being wound in a core 13.

If relatively another core 14 is various 2~5 fixed, piece cutter 16 is acted, near another core 14, Disposably cut off the shim 2,3 of the state of coincidence and two protective glue bands 100 of electrode slice 4,5.It is being wound in one as a result, In electrode slice 4,5 in a core 13, the terminal part in the piece main part 4A, 5A passes through the lead of tripping protection adhesive tape 100 Adhesive tape portion 4B, 5B and the state covered, in addition, its terminal part is made of lead adhesive tape portion 4B, 5B.In addition, another being wound in In electrode slice 4,5 in core 14, the top portion in the piece main part 4A, 5A passes through the lead glue of tripping protection adhesive tape 100 Band portion 4B, 5B and the state covered are constituted in addition, the top portion passes through lead adhesive tape portion 4B, 5B.In addition, being wound in a volume Various 2~5 terminal parts on core 13 are in the state of alignment, wind various 2~5 beginnings in next another core 14 End is also at the state of alignment.

After the cutting of shim 2,3 and protective glue band 100, various 2~5 states are being pressed by pressing roller 17, Make the rotation of core 13 (referring to Figure 24).As a result, in the case where no irregular, shim 2,3 and are fully batched The winding remainder of electrode slice 4,5, cell device 1 are completed.In addition, since the off-position of shim 2,3 etc. is not opposite It removes position P2 exceedingly to leave, therefore the winding remainder of shim 2,3 etc. is shorter.In addition, cutting due to shim 2,3 etc. It is relatively another in disconnected various 2~5 initial portions for being closely located to winding position P1, therefore being wound in next another core 14 The outer peripheral surface of one core 14 and part outstanding (winding beginning portion) is shorter.

In addition, various 2~5 terminal parts being aligned in cutting are in circumferential direction with batching for remaining part is wound It is staggered slightly.Then, if normally winding various 2~5, various 2~5 terminal parts, which are in, is located at inner circumferential side Piece, relatively other pieces, more to circumferential state outstanding.But it is shorter due to winding remaining part, therefore if various 2~5 are normally wound, even if then in the case where being staggered with progress various 2~5 terminal parts batched, various Model of 2~5 terminal part still in the half amount (being in the present embodiment 1/4 week) for the outer peripheral surface for being converged in cell device 1 Enclose interior state.

Then, various 2~5 terminal parts are shot by the 1st video camera 19, and passes through the 2nd video camera 20 Various 2~5 top portions are shot.Then, the shooting image obtained according to two video cameras 19,20 are passed through, by Judgment means 21 judge that cell device 1 is qualified or not.

If the qualified or not judgement of cell device 1 terminates, as shown in Figure 25, pass through adhesive-band sticking device 18, it is specified that adhesive tape for fixing 110 be pasted on various 2~5 terminal parts, various 2~5 windings are stopped.In addition, such as Fruit normally winds various 2~5, due to the state being staggered slightly in various 2~5 terminal parts, is exposed to battery member On the outer peripheral surface of part 1, therefore what the bonding plane of adhesive tape for fixing 110 was contacted in the respective end of the terminal part with various 2~5 State.

Device is removed by above-mentioned, completed cell device 1 is removed from a core 13.Removing cell device After 1, core 13 is submerged with respect to turntable 12.

In addition, after the cutting of above-mentioned shim 2,3 and each protective glue band 100, with carry out above-mentioned removing position P2's While batching operation of various 2~5 terminal parts starts various 2~5 windings of winding position P1.

In addition, various 2~5 top portions being aligned in cutting are staggered slightly in circumferentially with the beginning of winding. As a result, if being in normal state for various 2~5, various 2~5 top portions are in located on the outer side, Relatively other pieces get over circumferentially state outstanding.But since various 2~5 winding beginning portions are shorter, thus if it is each Kind piece 2~5 is in normal state, even if various 2~5 top portions are in the feelings being staggered then with the progress batched Under condition, the half amount (in the present embodiment 1/ of various 2~5 top portions still in the inner peripheral surface for being converged in cell device 1 4 weeks) in the range of state.

Later, above-mentioned step is repeated, various 2~5 are alternately wound in core 13,14, thus successively make Make cell device 1.

As described in detail above, in the embodiment, when for normal cell device 1, various 2~5 Terminal part be respectively to outer peripheral surface and expose, and be converged in the half amount (being in the present embodiment 1/4 week) of outer peripheral surface In the range of state.Expose in addition, various 2~5 top portions are respectively to outer peripheral surface, and is converged in inner peripheral surface State in the range of half amount (in the present embodiment, 1/4 week).Then, it can be easy to hold various 2~5 from outside Terminal part and top portion, and then can be easy to judge from outside various it is 2~5 qualified or not.

In addition, according to can more easily hold various 2~5 terminal parts, the viewpoint of top portion, best angle, θ 1, θ 2 is smaller, i.e., various 2~5 terminal parts, top portion are more in locally existing state.Then, especially best angle, θ 1, θ 2 is less than 45 °, and especially best angle, θ 1, θ 2 are less than 30 °.

In addition, the terminal part due to various 2~5 is in the state being slightly staggered every time, therefore adhesive tape for fixing can be made 110 bonding plane is more reliably contacted with various 2~5.As a result, electricity can be carried out relatively reliable and strongerly The winding of pond element 1 stops.

In addition, the terminal part and top portion of lead adhesive tape portion 4B, 5B screening glass main part 4A, 5A can be passed through.Even if as a result, In the feelings that burr, the arris of the cutting with piece main part 4A, 5A generate at the terminal part of piece main part 4A, 5A and top portion Under condition, the case where these burrs etc. expose still can inhibit.It can be prevented more reliably as a result, because of burr etc., damage shim 2,3 The case where, the raising of the quality of cell device 1 can be sought.

In addition, being made up of various 2~5 terminal parts lead adhesive tape portion 4B, 5B, can be prevented more reliably as a result, Piece main part 4A, 5A on the outer peripheral surface of cell device 1 the case where exposing.As a result, for example, being received in cell device 1 above-mentioned Whens occasion etc. in battery case, the situation that piece main part 4A, 5A generate short circuit etc. can be prevented more reliably.

Further more, since various 2~5 terminal parts, top portion are respectively different colors, therefore can further easily Hold various 2~5 terminal parts, top portions.As a result, it is qualified or not to be further easy to carry out cell device 1 Judgement.

In addition, in the above-described embodiment, since the length of the piece main part 5A of an element amount is greater than an element amount Piece main part 4A can be by piece main part 5A therefore in cell device 1, more reliably emulsion sheet main part 4A.As a result, Can effectively inhibit with main part 4A is not the rough sledding of piece main part 5A covering (for example, being formed in main part 4A Acicular precipitate makes damage of shim 2,3 etc.).As a result, can further seek the raising of the quality of cell device 1.

In addition, the contents being not limited to the above embodiment, for example can also implement as following.Obviously, exist Other example application, the version that do not enumerate below are also certainly possible.

(a) in the above-described embodiment, various 2~5 terminal parts are in the piece for being located at inner circumferential side, relatively other Piece more to circumferential state outstanding, however, it is possible to as shown in Figure 26 and Figure 27 (enlarged drawing that Figure 27 is the region AR1 of Figure 26) As, it is constituted in such a way that various 2~5 terminal parts are in circumferentially aligned state.

In addition, can also be as shown in Figure 26 and Figure 28 (enlarged drawing for the region AR2 that Figure 28 is Figure 26), according to various The top portion of piece 2~5 is constituted in the mode in circumferentially aligned state.In addition, Figure 26~Figure 28 indicates each in a schematic way The terminal part of kind piece 2~5, top portion, various 2~5 end faces originate end face without requiring for the same side respectively.

It is constituted by way of being in the state of alignment according to various 2~5 terminal parts, top portion, with above-mentioned implementation Mode is identical, and the easiness of the qualified or not judgement of cell device 1 can be improved.

It can be real by following manner etc. in circumferentially aligned state this point in addition, being in various 2~5 terminal parts It is existing, which are as follows: for example, corresponding to various 2~5 winding beginning portions, winding the length of remainder, adjust respectively each The off-position of kind piece 2~5 or the motion track of adjustment sheet cutter 16.

In addition, in the occasion that the terminal part according to various 2~5 is constituted in circumferentially aligned mode, it can also be by the 1st camera shooting Machine 19 is set to the position that can be shot to various 2~5 starting end faces.

(b) in the above-described embodiment, piece main part 4A, 5A are connected only by protective glue band 100, however, it is possible to As shown in Figure 29, adhesive tape 120 is moved by protective glue band 100 and the band-like connection being formed by insulating materials and is connected. In the occasion, the difference for being greater than the length of piece main part 4A, 5A for constituting 1 cell device 1 can be set on one side, make protective glue on one side The part for the relatively thick being overlapped with 100 is shorter.It can make the outer diameter of acquired cell device 1 smaller as a result, battery can be sought The miniaturization of element 1.In addition, can be difficult to generate bubble between the protective glue band 100 being overlapped, battery member can be effectively inhibited The reduction of the quality of part 1.In addition, the length of piece main part 5A can be made to be sufficiently greater than piece main part 4A, in cell device 1, By piece main part 5A, more reliably emulsion sheet main part 4A.The quality of cell device 1 is further sought as a result, It improves.

In addition, in the occasion of setting connection adhesive tape 120, in the cutting of shim 2,3 etc., by piece cutter 16, At least one of tripping protection adhesive tape 100 and connection adhesive tape 120.Then, terminal part, the top portion of electrode slice 4,5 are constituted Lead adhesive tape portion 4B, 5B be made of at least one of protective glue band 100 and connection adhesive tape 120.

(c) in the above-described embodiment, different colors is respectively provided with according to various 2~5 terminal parts, top portion Mode is constituted, however, it is possible to which terminal part, the mode that the color of top portion is different are constituted according between adjacent piece.It can also press According to for example, make on one side shim 2,3 color and lead adhesive tape 4B, 5B color difference it is identical, make shim 2,3 on one side The color mode different with the color of lead adhesive tape 4B, 5B constitute.Equally in the occasion, various can be more easily held 2~5 terminal part, top portion, can more easily carry out the qualified or not judgement of cell device 1.

Obviously, it is not necessary to it is certain to require to keep various 2~5 terminal parts different with the color of top portion, various 2 can also be made ~5 terminal part is identical with the color of top portion.

(d) in the above-described embodiment be arranged the 1st video camera 19, so as to carry out various 2~5 terminal part shooting, However, it is possible to carry out the shooting of various 2~5 terminal parts by the 2nd video camera 20.In the occasion, the 1st can also be not provided with and taken the photograph Camera 19.Various 2~5 terminal parts can be shot respectively by a video camera 20 by be not provided with the 1st video camera 19 It is constituted with the mode of top portion, seeks the simplification of the device of qualified or not judgement, the miniaturization of device can be sought, low cost Change.

(e) in the above-described embodiment, it is constituted by such a way that shim 2 is arranged in the most peripheral of cell device 1, but It is that can also be constituted in the mode that one of two electrode slices 4,5 are arranged in the most peripheral of cell device 1.As long as that is, two electrodes Piece 4,5 is in state of insulation by shim 2,3, and various 2~5 layer-by-layer states can suitably change.

(f) in the above-described embodiment, using two shims 2,3, but them can also be replaced, and uses middle section Curve a shim of two parts.

(g) in the above-described embodiment, still passed through by the cell device 1 that winding device 10 manufactures lithium ion battery The winding element that winding device 10 manufactures is not limited to this, for example, the winding element etc. of electrolytic capacitor can also be manufactured.

(h) in the above-described embodiment, it is in the volume of round shape that core 13,14, which uses the peripheral shape wound various 2~5, Core, still, the shape of core 13,14 are not limited to this, for example, peripheral shape can also be used as rectangle (flat), ellipse The core of shape, oblong etc..

(i) shim 2,3, piece main part 4A, 5A, lead adhesive tape portion 4B, 5B material be not limited to the above embodiment. For example, in the above-described embodiment, forming shim 2,3 by PP, divide however, it is possible to be formed by other insulating materials Partition 2,3.In addition, can also be for example, suitably changing coated on the active material on piece main part 4A, 5A.In addition, can also be by non- The metal of electric conductivity forms lead adhesive tape portion 4B, 5B.

(j) in the above-described embodiment, various 2~5 modes being directly wound on the periphery of core 13 (14) are formed It constitutes, however, it is possible in the core core (not shown in FIG.) that tubular is arranged on the periphery of core 13 (14), by various 2 ~5 are wound in the structure on the core core.

(k) in the above-described embodiment, winder 11 is that there are two the structures of core 13,14 for tool, still, the quantity of core It is not limited to this, can also be the structure of the core with one or three or more.In addition, in the occasion that core is only arranged, no Turntable 12 must be set.

(l) in the above-described embodiment, formed through piece cutter 16, in the outside of core 13,14 cut off various 2~ 5 structure, however, it is possible to be formed such as by cutter is arranged in core, in the inner cut-out of slit 13S, 14S various 2~5 structure.In the occasion, various 2~5 top portions can be made to be in the state being more reliably aligned, can be easy to hold Various 2~5 top portions.

(m) measured value according to the encoder being set in core 13,14 is formed in the above-described embodiment, by protective glue The structure of the specified position between core 13,14 is positioned at 100, still, however it is not limited to this, it can also be formed such as in core 13, sensor is set on 14, the positioning of protective glue band 100 is carried out according to its testing result.

The explanation of label:

Label 1 indicates cell device (coiling body)；

Label 2,3 indicates shim；

Label 4 indicates electrode film；

Label 4A, 5A indicate piece main part；

Label 4B, 5B indicate lead adhesive tape portion；

Label 5 indicates negative electrode plate；

Label CL1 indicates central axis；

Label VL1, VL2, VL3, VL4 indicate imaginary line.

Claims

1. a kind of coiling body, the coiling body include:

Above-mentioned each is wound with the state of coincidence, and is extended in defined central axis direction, which is characterized in that

Above-mentioned electrode slice includes:

Above-mentioned each terminal part is in the piece for being located at inner circumferential side, relatively other pieces more to circumferential state outstanding, With above-mentioned central axis in perpendicular section, if from above-mentioned each terminal part positioned at most peripheral terminal part be located at The terminal part of most inner circumferential draws imaginary line towards above-mentioned central axis respectively, then two angles formed by two above-mentioned imaginary lines In lesser angle less than 180 °.

2. coiling body according to claim 1, which is characterized in that above-mentioned angle is less than 90 °.

3. coiling body according to claim 1 or 2, which is characterized in that above-mentioned each includes the piece abutted with itself The different terminal part of terminal part color.

4. coiling body according to claim 1 or 2, which is characterized in that above-mentioned each terminal part is respectively different face Color.