CN102870252A - Thin battery module and assembled battery using same - Google Patents
Thin battery module and assembled battery using same Download PDFInfo
- Publication number
- CN102870252A CN102870252A CN2011800115616A CN201180011561A CN102870252A CN 102870252 A CN102870252 A CN 102870252A CN 2011800115616 A CN2011800115616 A CN 2011800115616A CN 201180011561 A CN201180011561 A CN 201180011561A CN 102870252 A CN102870252 A CN 102870252A
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- battery module
- thin type
- type battery
- connector portions
- electric power
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- 238000009826 distribution Methods 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/42—Grouping of primary cells into 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
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Disclosed is a battery module wherein the electrode terminals of the battery module can be extremely easily connected, and furthermore, a bus bar for connecting the electrode terminals is not necessary when assembling the battery modules. An assembled battery using the battery modules is also provided. In the thin battery module, a plurality of cells (2, 2) are housed in a case (1), and the cells are stacked and electrically connected. In the upper and lower surfaces of the case (1), contact sections (11, 11) for inserting a connecting member (7) for electrical connection with the adjacent thin battery modules are formed. In the case (1) adjacent to each contact section (11), a contact section for power (60) electrically connected to the lead terminals (3, 4) of the cell (2) is provided. The contact section for power (60) has the connecting member (7) removably attached thereto.
Description
Technical field
The thin type battery module that the present invention relates to use a plurality of lamination units to consist of, with the battery pack that this thin type battery module central combination is consisted of.In addition, in this manual, so-called lamination unit refers to the thin type unit of stacked pattern, and the unit is to use the meaning that comprises battery unit or monocell.
Background technology
As this kind thin type battery module, known have a plurality of lamination unit central combination, and connect into electrical series connection and (or) parallel connection, around covering with the chamber of resin component element or metal and consist of.In addition, in order to drive the vehicle mobile motor of electric motor car (Electric Vehicle) or hybrid electric vehicle (Hybrid Electric Vehicle), because need jumbo electric power, and knownly have these a plurality of thin type battery module central combination and electrically being connected in series, for example, constitute the battery pack of 100V or 350V specification.In addition, battery pack also can be used as electric power storage with and use.
Then, with a plurality of central combination of thin type battery module, and electrically be connected in series and when consisting of battery pack, as can be really and the structure that carries out easily this electric connection, dispose the connecting elements of positive pole and negative pole in the side surface part of thin type battery module, and leads for connecting and bus are installed on these connecting elementss.
In general, with thin type battery module central combination, and use bus when these are electrically connected, the words that its central combination quantity is different, then the length of central combination direction is different, and the bus that therefore is installed on the connecting elements of each thin type battery module can be used the length that is suitable for central combination quantity or central combination length aspect.
And, as the structure that connects adjacent thin type battery module, also known have a following structure: the bus of preparing a kind of or a few species, and dispose the next-door neighbour's of adjacent thin type battery module connecting elements in the different mode of both positive and negative polarity, and realize that the both positive and negative polarity that these are adjacent electrically conducts by these most buses each other.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2006-066322 communique
Patent documentation 2: TOHKEMY 2007-265945 communique
Patent documentation 3: TOHKEMY 2009-231267 communique
Patent documentation 4: TOHKEMY 2009-301874 communique
Patent documentation 5: No. 3731595 communique of Japan Patent
Summary of the invention
(problem that invention will solve)
As mentioned above, because jumbo battery pack is that a plurality of central combination of thin type battery module are consisted of, so the structure of electric connection of battery pack has great related with electrode arrangement as the thin type battery module of its inscape.And by thin type battery module itself, the positive pole of lamination unit that is accommodated in this and the configuration of negative wire terminal, electrode structure can differ widely.
About this respect, for example, battery module such as the TOHKEMY 2007-265945 communique of above-mentioned patent documentation 2, possess positive pole and the negative wire terminal that arranges extending on the direction of quadrature with respect to the cells overlap direction arranged, simultaneously the lead terminal of identical polar is protruded from same direction each other and arrange, with the lead terminal of above-mentioned identical polar fixed to one another and be connected to anodal with and each bus of using of negative pole on, and can access simple structure.
The present invention proposes in this type of battery module, can further develop the simplification of the structure of electric connection of module and arrangement thereof and intermodule, can realize the simplification of the formation of thin type battery module, and between adjacent thin type battery module, do not need to be used in electrode terminal both sides' the thin type battery module of bus of connection and the battery pack of using it.
(technical scheme of technical solution problem)
When putting down in writing when enclosing the employed element numbers of embodiment, the thin type battery module of first aspect present invention, by with a plurality of unit 2,2 are accommodated in the chamber 1 and with these a plurality of cells overlaps and be electrically connected and consist of, described thin type battery module is characterised in that, on the top and bottom of described chamber 1, form with adjacent thin type battery module and be electrically connected the connector portions 11 that the connecting elements 7 of usefulness will insert, 11, with described chamber 1 inside of described each connector portions 11 adjacency, setting also consists of conducting to the lead terminal 3 of described unit 2,4 electric power connector portions 60, described electric power can be equipped with described connecting elements 7 thereon with connector portions 60 with loading and unloading.
The thin type battery module of second aspect present invention is characterised in that in first aspect present invention, the connector portions 11 of the top and bottom of described chamber 1 and described each electric power are arranged at same position with the central combination direction of connector portions 60 in the unit.
The thin type battery module of third aspect present invention is characterised in that, described each unit 2 possesses positive pole and the negative wire terminal 3 that arranges extending on the direction of quadrature with respect to the cells overlap direction is arranged, 4, simultaneously the lead terminal of identical polar is protruded from same direction each other and arrange, with the lead terminal of described identical polar fixed to one another and be connected to anodal with and each bus 6 of using of negative pole, on 6, the bus 6 that described positive pole is used and negative pole is used, 6 both sides' base portion 62,62 are configured to overlapping shape via insulating component, at the described bus base portion 62 that is configured to the both sides of overlapping shape, on 62, electric power connector portions 60 is set.
The thin type battery module of fourth aspect present invention is characterised in that, in first aspect present invention, described bus 6 possesses to be had with described lead terminal 3,4 connecting portion 61 and described electric power with connector portions 60, simultaneously connecting portion and this electric power to major general and this lead terminal exposes with connector portions 60, utilizes around insulative resin moulds.
The thin type battery module of fifth aspect present invention is characterised in that, in first aspect present invention, described anodal with and both sides' bus 6,6 of using of negative pole possess and have with described lead terminal 3,4 connecting portion 61 and described electric power with connector portions 60, and the same configuration for utilizing insulative resin to form around moulding.
The thin type battery module of sixth aspect present invention is characterised in that, in first aspect present invention, flat supporting bracket 5 is set, and respectively disposes up and down a unit 2 in this supporting bracket 5.
The thin type battery module of seventh aspect present invention is characterised in that, in first aspect present invention, described electric power forms other position that is thicker than described bus 6 with the position of connector portions 60, in addition, described connecting elements 7 possesses at central portion has: diameter is greater than the central base portion 71 of described electric power with connector portions 60; Use the position of connector portions 60 for being installed on described electric power, and be symmetricly set on a side of described central base portion 71 and the protuberance 72,72 of opposite side.
The thin type battery module of eighth aspect present invention is characterised in that, in first aspect present invention, described each unit 2,2 positive wire terminal 3 are made of the material that then fuse when the current flowing that surpasses designated value, in addition, be provided with and be separately fixed at the substrate 9 that voltage instrumentation that the distribution 91 on each unit 2,2 the positive wire terminal 3 is connected with the distribution 92 that is fixed on described negative side is used.
The thin type battery module of ninth aspect present invention is characterised in that, in eighth aspect present invention, on described substrate 9 or described distribution, is provided with the temperature sensor 93 that the cell temperature instrumentation is used.
The battery pack of tenth aspect present invention, it is characterized in that, with a plurality of central combination of the described thin type battery module of either side among the present invention first to nine, between adjacent thin type battery module, connecting elements is installed simultaneously and is consisted of battery pack, be connected in series the thin type battery module of these a plurality of central combination.
The present invention the tenth battery pack on the one hand is characterised in that, in tenth aspect present invention, possesses the support portion that the thin type battery module that supports described a plurality of central combination is arranged, two output power supply units of side of the positive electrode and negative side are set in this support portion, the side of the positive electrode of the thin type battery module of described two out-put supply sections and described central combination and the electric power of negative side are electrically conducted respectively via described connecting elements with connector portions.
(effect of invention)
The first and the tenth aspect according to the present invention, the thin type battery module that the present invention relates to is owing to be formed with the connector portions that connecting elements inserts in the top and bottom of above-mentioned chamber, so only by merely connecting elements being inserted between adjacent thin type battery module, just can realize electrically conducting.
Therefore, in the situation that consists of battery pack, as background technology, do not use a plurality of leads for connecting etc., and can realize electrically conducting of battery pack.Especially such as the present invention the tenth on the one hand, in the situation of the support portion that is provided with the support cells group, because use for example connecting elements of seventh aspect present invention, and can realize two outputs of side of the positive electrode and negative side are electrically conducted with connector portions with the side of the positive electrode of the thin type battery module at the both ends of power supply unit and battery pack and the electric power of negative side, so can avoid the wire and connecting elements and the wire interference each other etc. that when using leads for connecting and bus, produce, can avoid the relevant fault of wire/bus, even because do not need to connect distribution space and the wiring operation such as wire of usefulness, so can further realize the simplification of constructing and the easily change of making.
And, such as second aspect present invention, in thin type battery module of the present invention, because the connector portions of chamber top and bottom and each electric power are formed at same position with the central combination direction of connector portions in the unit, if so use connecting elements it is installed in above-mentioned each connector portions, then can consist of battery pack, therefore, when consisting of battery pack, location and contraposition become easy, and can naturally and understandably realize the alignment of thin type battery module, therefore can realize the Labor-saving of easily change with the operation of battery pack formation.
Such as third aspect present invention, in the thin type battery module, because the lead terminal of identical polar protruded from same direction each other and arrange, to be fixed in this each bus 6,6 base portion is configured to overlapping shape, electric power is arranged on these bus base portions with connector portions, therefore make lead terminal and bus or even electric power rationalize and oversimplify with the configuration of connector portions, it is made easily change.
Such as fourth aspect present invention, mould in the situation around the bus utilizing insulative resin, when with positive pole with and the bus both sides' that use of negative pole base portion when being configured to overlapping shape, because can naturally and understandably realize insulation structure, so do not need in addition insulating component, and the lifting workability, and, the poor flow that produces in the time of also can avoiding in addition insulating component being set.
According to fifth aspect present invention, because both sides' bus that positive pole is used and negative pole is used can be made as same configuration, so being a kind, bus gets final product, can realize the Labor-saving of number of spare parts.And, owing to utilize insulative resin to mould around the bus, thus the same with the situation of above-mentioned fourth aspect, can realize the lifting of workability and avoid bad.
This type of unit generates heat by discharging and recharging, have or not and the cooling rate of its cooling can be to deterioration and the internal short-circuit of battery performance or the undue heat that produces when unusual and the smoldering of causing such as overcharge, the danger such as catch fire has great impact, according to sixth aspect present invention, owing to dispose like this two unit, and top and bottom and each battery unit planar portions at chamber are adjacent, therefore the heat exchange with outside atmosphere all effectively and is equably carried out in both sides' a side by chamber, and the temperature that can suppress battery unit rises and the acceleration that suppresses battery deterioration.
According to seventh aspect present invention, because be provided with diameter greater than the central base portion of electric power with connector portions at connecting elements, so this central base portion is connected to bus, can carry out the location of connecting elements.At this moment, the protuberance of a side of connecting elements is installed in electric power and realizes with connector portions electrically conducting, and the protuberance of opposite side is outstanding from bus and the position is used in connection after consisting of.And, because electric power forms other position that is thicker than bus with the position of connector portions, so can increase and be installed on this electric power with the contact area of the connecting elements of connector portions, can guarantee the reliability that electrically conducts.
According to eighth aspect present invention, when normal, can distinguish the voltage of each unit of instrumentation substrate.Then, when make large electric current when lead terminal flows owing to any abnormal situation, the positive wire terminal fuses.Usually, be positioned at unusually can't the judging from the outside of thin type battery module of chamber, but when above-mentioned lead terminal fusing, the voltage of substrate changes, so can detect that this is unusual.Therefore, can suitably carry out the replacement etc. of unusual thin type battery module corresponding to this.
According to ninth aspect present invention, owing to be provided with the temperature sensor that the cell temperature instrumentation is used at substrate or distribution, therefore can detect the temperature information of unit, and can carry out the voltage of accurate unit and the supervision of temperature.
Description of drawings
Fig. 1 is that the integral body of the thin type battery module that the present invention relates to of expression consists of stereogram.
Fig. 2 omits chamber member up and down and the pith that represents amplifies and consists of stereogram among Fig. 1.
Fig. 3 is the vertical view of this routine thin type battery module of expression.
Fig. 4 is the state of upside chamber member is taken in expression apart from the thin type battery module of Fig. 3 vertical view.
Fig. 5 is the longitudinal section at the bus place of Fig. 4.
Fig. 6 is the enlarged drawing of the X section of Fig. 5.
Fig. 7 is that the integral body that expression uses the thin type battery module that the present invention relates to consist of battery pack consists of stereogram.
Fig. 8 is the stereogram that expression is accommodated in battery pack the state of taking in bracing frame.
Fig. 9 is the vertical view of other routine thin type battery module of expression.
Symbol description
1 chamber member
1A upside chamber member
1B downside chamber member
11 connector portions
The connector portions of 11A upside chamber member
The connector portions of 11B downside chamber member
The upper side unit of 2A
Side unit under the 2B
3 positive wire terminals
The positive wire terminal of the upper side unit 2A of 3A
The positive wire terminal of side unit 2B under the 3B
4 negative wire terminals
The negative wire terminal of the upper side unit 2A of 4A
The negative wire terminal of side unit 2B under the 4B
5 supporting brackets
6 buses
6A positive pole bus
6B negative pole bus
60 electric power connector portions
61 bus leading sections
62 bus base portions
63 insulating components
7 connecting elementss
71 central base portions
72 protuberances
72A upside protuberance
72B downside protuberance
8 lead-in wire bracing frames
8A top lead-in wire bracing frame
8B below lead-in wire bracing frame
81 padded coamings
9 substrates
The anodal distribution of 91A
The anodal distribution of 91B
92 negative pole distributions
The 93A temperature sensor
The 93B temperature sensor
The 94A connecting portion
The 94B connecting portion
95A upside base plate supports frame
95B downside base plate supports frame
100 thin type battery modules
110 thin type battery modules
200 battery pack
201 support portions
202 base plate
203 top plate portions
204 rod bars
205 output power supply units
206 output power supply units
207 output distributions.
Embodiment
Below, describe for the present invention in accordance with the embodiments illustrated.In Fig. 1 to Fig. 6, this routine thin type battery module 100 is with a plurality of unit 2,2(2A, 2B) be accommodated in up and down chamber member 1,1(upside chamber member 1A, downside chamber member 1B) in, and these a plurality of cells overlaps are constituted be connected in parallel.In this example, unit 2,2 can use side unit 2A and two unit of lower side unit 2B.
Each unit 2A, 2B possess lead terminal 3A, the lead terminal 3B of lower side unit 2B that has extending side unit 2A on the positive wire terminal 3 that arranges, the 3(on the direction of overlapping direction and quadrature with respect to it) and negative wire terminal 4, the lead terminal 4A of the upper side unit 2A of 4(, the lead terminal 4B of lower side unit 2B), and the lead terminal of identical polar protruded from same direction each other and arrange.In addition, in this example, positive wire terminal 3,3 and negative wire terminal 4,4 both sides all protrude from same direction.
In addition, in this example, flat supporting bracket 5 is arranged on the central portion, and clamps this supporting bracket 5 and dispensing unit 2A, 2B.This type of lamination unit is to generate heat by discharging and recharging, and having or not with cooling rate of its cooling can have great impact to battery performance.Since like this with two cell locations in about, so both sides one side all can be by chamber member 1A, 1B carries out and the heat exchange of outside atmosphere.Thus, can suppress the acceleration of the caused battery deterioration because the unit generates heat.
Among the figure, element numbers 6 is buses, and the lead terminal of unit 2 is connected on this bus 6.In this example, clamp supporting bracket 5, positive pole is disposed at upside with bus 6A, negative pole is disposed at downside with bus 6B.The above-mentioned positive wire terminal 3,3 of giving prominence in same direction is connected to anodal with on the bus 6A, and negative wire terminal 4,4 is connected to negative pole with on the bus 6B.These lead terminals 3,4 and being connected and fixed of bus 6 can be undertaken by laser welding.
And bus 6 possesses the leading section 61 that copper coin carried out drawing and form and form crank-like arranged, with form the base portion 62 of electric power described later with connector portions 60.In addition, around the base portion side of bus 6, except electric power was sentenced with connector portions 60, moulding (covering) had resinous insulating component 63.
In above-mentioned bus 6, the bus 6A that positive pole is used and negative pole is used, 6B both sides' base portion 62,62 are configured to overlapping shape.In this example, positive pole is used and negative pole is used bus 6A, 6B clamp supporting bracket 5, and fix by tapping screw.
Such as this example and since with positive pole with and the bus 6A that uses of negative pole, 6B both sides' base portion 62,62 be configured to overlapping shape, and utilize insulative resin mould bus 6 around, therefore can naturally and understandably realize insulation structure.Utilize like this insulative resin mould bus around situation under, can not need insulating component in addition and improve workability, and when in addition insulating component being set, have by it and how to dispose or vibration etc. produces that insulating component moves or the danger of the poor flow such as short circuit, with the insulating component immobilization, then can avoid this type of state of affairs if mould.
With above-mentioned bus 6A, when 6B is configured to overlapping shape, when observing from the overlapping direction of unit 2A, 2B, the center of these connector portions is formed at same position with connector portions 60,60 for set above-mentioned both sides' electric power on both sides' bus base portion 62,62.
In addition, electric power with connector portions 60,60 one or both on, connecting elements 7 described later can be installed with loading and unloading, and can realize electrically being connected in series of adjacent thin type battery module.
Therefore, when consisting of battery pack when using this routine thin type battery module 100, owing to only use connecting elements 7 and it be installed in electric power with on the connector portions 60,60, therefore as background technology, do not use a plurality of leads for connecting and bus, can realize electrically conducting of battery pack.
Do not use like this a plurality of leads for connecting etc. and realize electrically conducting of battery pack, can avoid the wire and connecting elements and the wire interference each other etc. that when using leads for connecting etc., produce, can avoid the relevant fault of wire/bus, even because do not need to connect distribution space and the wiring operation such as wire of usefulness, so can realize the simplification of thin type battery module configurations and the easily change of making.
And, in this example, bus 6A, 6B both sides' electric power with connector portions 60 because the overlapping direction in the unit is formed at same position, therefore be installed on electric power uses when consisting of battery pack on the connector portions 60,60 at use connecting elements 7 and with it, location and contraposition become easy, and can naturally and understandably realize the alignment of thin type battery module, therefore, can realize the Labor-saving of easily change with the operation of battery pack formation.
Above-mentioned electric power forms other position that is thicker than bus 6 with the position of connector portions 60.Because connecting elements 7 can be installed on this electric power with connector portions 60 with loading and unloading, thus form other position that is thicker than bus 6 by electric power with the position of connector portions 60, thus can make this electric power with the electrically conducting property lifting of connector portions 60 and connecting elements 7.
Above-mentioned connecting elements 7 possess have central portion place diameter greater than electric power with the central base portion 71 of connector portions 60, be symmetricly set on a side of this central base portion 71 and the protuberance 72 on the opposite side.Protuberance 72 is to be installed in the position that electric power is used connector portions 60, and in the case of this example, the downside protuberance 72B among both sides' protuberance 72A, the 72B is installed in the anodal bus 6A that uses.Upside protuberance 72A is outstanding from bus 6A, and the position is used in the connection after consisting of.
Namely, upside protuberance 72A other thin type battery module from above during overlapping so far thin type battery module, the negative pole that the is positioned at downside electric power connector portions 60 of bus 6B that is embedded in this top thin type battery module, thus, can realize that being connected in series between overlapping up and down thin type battery module electrically conducts.
About this routine thin type battery module 100 of such formation, on connecting elements 7, owing to be provided with diameter greater than the central base portion 71 of electric power with connector portions, thus this central base portion 71 is connected to bus 6, and carry out the location of connecting elements 7.And electric power, therefore as mentioned above, can increase and is installed in this electric power with the contact area of the connecting elements 7 of connector portions 60 owing to form other position that is thicker than bus 6 with connector portions 60, and guarantees the reliability that electrically conducts.
Among the figure, element numbers 8 is lead-in wire bracing frames, and possessing has: the lead-in wire bracing frame 8A of from top to bottom crimping lead-in wire positive wire terminal 3A; Be different from this lead-in wire bracing frame 8A and in addition making, from the lead-in wire bracing frame 8A of top crimping lead-in wire negative wire terminal 4A; The lead-in wire bracing frame 8B of from the bottom up crimping lead-in wire positive pole and negative wire terminal 3B, 4B.
On the electrolysis of lead-in wire bracing frame 8, be provided with padded coaming 81.And each bracing frame 8 that goes between is clamped supporting bracket 5 betwixt, and is fixed by tapping screw.
Above-mentioned each unit 2A, 2B and above-mentioned both sides' bus 6A, 6B are incorporated in by in the chamber that chamber member 1A, 1B consist of up and down, in addition, corresponding to above-mentioned electric power with connector portions 60,60 up and down chamber member 1A, 1B on, form in order to insert connector portions 11(11A, the 11B of logical above-mentioned connecting elements 7).
In addition, about this routine thin type battery module 100, positive wire terminal 3A, the 3B of above-mentioned each unit 2A, 2B formed by the material that the electric current that surpasses designated value when flowing then fuses.In this example, positive wire terminal 3A, 3B are formed by aluminium, then fuse when flowing through the electric current that surpasses 250 amperes.
And, with the supporting bracket 5 of above-mentioned bus 6 opposition sides near, be provided with the substrate 9 that the voltage instrumentation is used.On this substrate 9, be equipped with not shown microcomputer, the distribution 91A, the 91B that are separately fixed on positive wire terminal 3A, the 3B of each unit 2A, 2B are connected with the distribution 92 that is fixed on negative side, and these distributions consist of the voltage instrumentation FPC(flexible print wiring as thin wire).In addition, the substrate 9 used of voltage instrumentation be arranged on not with the overlapping supporting bracket 5 of unit 2A, 2B near.Thus, can avoid the impact in the magnetic field that the electric current when battery discharge produces.
When such formation, common the time (normal time), can distinguish the voltage of each unit 2A, 2B in the instrumentation substrate 9.Then, when making large electric current when lead terminal flows owing to any abnormal situation, positive wire terminal 3A, 3B one (or) another fusing.Usually unusually can not judging from the outside of the thin type battery module in chamber, but when 3 fusing of positive wire terminal the change in voltage of substrate 9, so can detect that this is unusual.Unusual by detecting like this, can suitably carry out the replacement of unusual thin type battery module etc. corresponding to this.
And on substrate 9, arranging respectively, this example of temperature sensor 93A, 93B(of the temperature of each unit 2A, 2B of instrumentation is thermistor).Thus, can obtain the temperature information of each unit 2A, 2B.In addition, temperature sensor also can be embedded in the above-mentioned distribution.
And, on the top and bottom of substrate 9, be provided with connecting portion 94A, 94B that each substrate 9,9 with the neighbouring thin type battery module that connects is connected in series.This connecting portion 94A, 94B be for example one be the connection metal divisional plane on the substrate 9, another is the spring connector of this metal divisional plane of butt.In addition, substrate 9 keeps by upper and lower base plate bracing frame 95A, 95B.This base plate supports frame 95A, 95B clamp supporting bracket 5 betwixt, and fix by tapping screw.
About the thin type battery module of the present invention that as above consists of, battery pack is only passed through a plurality of central combination of thin type battery module, and the while installs connecting elements 7 and consists of between adjacent thin type battery module, realizes thus electrically conducting.Background technology is in this kind battery pack, use a plurality of leads for connecting and bus and realize electrically conducting of battery pack, but in the present invention, shown in the concrete example, such leads for connecting etc. does not need as described later.Therefore, according to battery pack of the present invention, can avoid the wire and connecting elements and the wire interference each other etc. that when using leads for connecting etc., produce, can avoid the relevant fault of wire/bus, even because do not need distribution space and the wiring operation of leads for connecting etc., so can realize the simplification of constructing and the easily change of making.
Consist of an example of battery pack as a plurality of central combination of thin type battery module that this is routine, prepare a plurality ofly with the utmost point of connector portions 60 (for example a connecting elements 7 to be installed in electric power, positive pole) the thin type battery module of electric power on the connector portions 60, with respect to adjacency one side (for example, the opposite side of thin type battery module downside) (for example, upside) thin type battery module, the upside protuberance 72A of connecting elements 7 that is installed on the thin type battery module of an above-mentioned side is embedded in the downside electric power of thin type battery module of above-mentioned opposite side with connector portions 60, the battery pack 200(of a plurality of thin type battery modules is arranged with reference to Fig. 7 and can consist of combination).This battery pack 200 is connected in series by these a plurality of thin type battery modules and consists of.
But, in the present invention, the a plurality of central combination of thin type battery module are being consisted of aspect the battery pack, connecting elements 7 is not defined in above-mentioned situation certainly with respect to the mounting means of thin type battery module, and in order to distinguish side of the positive electrode and negative side, for example, make electric power with the shape of connector portions and vary in size, and follow this situation, each protuberance 72A of the upper and lower sides of connecting elements 7, the shape of 72B is also different with size, perhaps utilize the vertical bar member of circle or dihedral to form connecting elements 7, and arrange and to be suitable for this shape and the electric power connector portions of structure, can also further use the structure of electric connection of electric power usefulness connector portions and connecting elements chimeric, lock, the suitable modes such as engaging.
In the situation that consists of battery pack, one is for example shown in Figure 8, is provided with the support portion 201 of the battery pack 200 of taking in above-mentioned a plurality of thin type battery modules.In this example, support portion 201 possesses base plate 202 and top plate portion 203 is arranged, and keeps by excellent bar 204 on every side, 204.At the position of base plate 202 with the thin type battery module side of top plate portion 203, be respectively arranged with two outputs power supply unit 205,206 of side of the positive electrode and negative side.In addition, element numbers 207 is output distributions that the voltage instrumentation is used.
In this example, use on the power supply unit 205,206 in two outputs of above-mentioned side of the positive electrode and negative side, be provided with the electric power connector portions 60 for above-mentioned connecting elements 7 is installed.Then, via above-mentioned connecting elements 7 with above-mentioned two out-put supply sections 205,206 and the thin type battery module 100 of above-mentioned central combination, 100 side of the positive electrode and the electric power of negative side electrically conduct respectively with connector portions 60.
Like this, be accommodated in a plurality of thin type battery modules 100, the 100 formation battery pack 200 of above-mentioned support portion 201.Then, this battery pack 200 constitutes that these a plurality of thin type battery modules 100,100 are connected in series and a high capacity cell forming.
Therefore, in the situation that consists of battery pack 200, in two outputs of adjacent thin type battery module 100,100 and thin type battery module 100 and side of the positive electrode and negative side with power supply units 205, each electric power of 206 with on connector portions 60,60, owing to can realize electrically conducting by only merely connecting elements 7 being inserted, therefore as background technology, do not use a plurality of leads for connecting etc., and can realize electrically conducting of battery pack.Therefore, can avoid the wire and connecting elements and the wire interference each other etc. that when using leads for connecting and bus, produce, can avoid the relevant fault of wire/bus, even because do not need distribution space and the wiring operation of leads for connecting etc., so can further realize the simplification of constructing and the easily change of making.
And, support portion 201 about this routine battery pack 200, at the position (downside of the upside of base plate 202 and top plate portion 203) of base plate 202 with the thin type battery module side of top plate portion 203, be provided with the connecting portion 94A of aforesaid substrate 9, the connection usefulness position (omitting diagram) that 94B is electrically connected.Use the position by these connections are set, can obtain respectively each thin type battery module 100,100 to be carried out voltage and the temperature information of each unit 2A, 2B of instrumentation.
Thin type battery module 100 about above-mentioned example, with positive wire terminal 3,3 and negative wire terminal 4,4 both sides all protrude from same direction, and be that example describes with the situation that upper lower unit 2A, 2B electrically are connected in parallel, but the present invention is not limited thereto.For example, also can make positive wire terminal 3,3 and negative wire terminal 4,4 protrude from rightabout.
In this case, as shown in Figure 9, in the one side (surface) of thin type battery module 110 positive terminal section as precedent is set, and connecting elements 7 is mounted thereto, simultaneously, at the opposition side of Width anode connector section is set, and connecting elements 7 is mounted thereon.In addition, on the another side (back side) of thin type battery module 110, with these connector portions same position places, be provided with above-mentioned identical connector portions.
Thin type the battery module described above and battery pack of its central combination is not limited to above-mentioned concrete example.Especially about the thin type battery module, not only can carry out electrically being connected in parallel of unit, also can be connected in series, and, the shape of the shape of the bus in the thin type battery module, electric power usefulness connector portions, structure, configuration etc. and battery pack, structure etc., and even as long as be fit to help the purpose of the present invention of facilitation simplification of the central combination of adjacent thin type battery module, can use suitable mode.
(utilizability on the industry)
The present invention is suitable for the vehicle mobile of electric motor car or hybrid electric vehicle with electric motor driven thin type battery module and battery pack that this thin type battery module central combination is consisted of.
Claims (11)
1. thin type battery module, by a plurality of unit being accommodated in the chamber and with these a plurality of cells overlaps and be electrically connected and consist of, described thin type battery module is characterised in that,
On the top and bottom of described chamber, form with adjacent thin type battery module and be electrically connected the connector portions that the connecting elements of usefulness will insert, inner with the described chamber of described each connector portions adjacency, setting also consists of conducting to the electric power connector portions of the lead terminal of described unit
Described electric power can be equipped with described connecting elements thereon with connector portions with loading and unloading.
2. thin type battery module according to claim 1 is characterized in that, the connector portions of the top and bottom of described chamber and described each electric power are arranged at same position with the central combination direction of connector portions in the unit.
3. thin type battery module according to claim 1, it is characterized in that, described each unit possesses positive pole and the negative wire terminal that arranges extending on the direction of quadrature with respect to the cells overlap direction is arranged, and simultaneously the lead terminal of identical polar is protruded from same direction each other and arranges
With the lead terminal of described identical polar fixed to one another and be connected to anodal with and each bus of using of negative pole on,
Described positive pole is used and the bus both sides' that negative pole is used base portion is configured to overlapping shape via insulating component,
On the described both sides' that are configured to overlapping shape bus base portion, the electric power connector portions is set.
4. thin type battery module according to claim 1, it is characterized in that, described bus possesses connecting portion and the described electric power connector portions that has with described lead terminal, and simultaneously connecting portion and this electric power to major general and this lead terminal exposes with connector portions, utilizes around insulative resin moulds.
5. thin type battery module according to claim 1, it is characterized in that, both sides' bus that described positive pole is used and negative pole is used possesses connecting portion and the described electric power connector portions that has with described lead terminal, and for utilizing insulative resin to mould the same configuration that forms on every side.
6. thin type battery module according to claim 1 is characterized in that, flat supporting bracket is set, and respectively disposes up and down a unit in this supporting bracket.
7. thin type battery module according to claim 1, it is characterized in that, described electric power forms other position that is thicker than described bus with the position of connector portions, and in addition, described connecting elements possesses at central portion and has: diameter is greater than the central base portion of described electric power with connector portions; Use the position of connector portions for being installed on described electric power, and be symmetricly set on a side of described central base portion and the protuberance of opposite side.
8. thin type battery module according to claim 1 is characterized in that, the positive wire terminal of described each unit is made of the material that then fuses when the current flowing that surpasses designated value,
In addition, be provided with the substrate that voltage instrumentation that the distribution on the positive wire terminal that is separately fixed at each unit is connected with the distribution that is fixed on described negative side is used.
9. thin type battery module according to claim 8 is characterized in that, on described substrate or described distribution, is provided with the temperature sensor that the cell temperature instrumentation is used.
10. battery pack, it is characterized in that, with a plurality of central combination of each described thin type battery module in the claim the 1 to 9, the while installs connecting elements and consists of battery pack between adjacent thin type battery module, be connected in series the thin type battery module of these a plurality of central combination.
11. battery pack according to claim 10, it is characterized in that, possesses the support portion that the thin type battery module that supports described a plurality of central combination is arranged, two output power supply units of side of the positive electrode and negative side are set in this support portion, the side of the positive electrode of the thin type battery module of described two out-put supply sections and described central combination and the electric power of negative side are electrically conducted respectively via described connecting elements with connector portions.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010044061 | 2010-03-01 | ||
| JP2010-044061 | 2010-03-01 | ||
| PCT/JP2011/055013 WO2011108680A1 (en) | 2010-03-01 | 2011-02-25 | Thin battery module and assembled battery using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102870252A true CN102870252A (en) | 2013-01-09 |
| CN102870252B CN102870252B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180011561.6A Active CN102870252B (en) | 2010-03-01 | 2011-02-25 | Thin type battery module and use the battery pack of this module |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5750097B2 (en) |
| CN (1) | CN102870252B (en) |
| TW (1) | TWI479723B (en) |
| WO (1) | WO2011108680A1 (en) |
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| CN105706273A (en) * | 2013-11-29 | 2016-06-22 | 株式会社Lg化学 | Battery module having stacked cartridges |
| CN115101897A (en) * | 2021-03-05 | 2022-09-23 | 本田技研工业株式会社 | Battery module |
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| JP5642616B2 (en) * | 2011-04-28 | 2014-12-17 | 大和製罐株式会社 | Battery module |
| JP5832819B2 (en) * | 2011-08-18 | 2015-12-16 | 大和製罐株式会社 | Assembled battery |
| JP2014191968A (en) * | 2013-03-27 | 2014-10-06 | Toyoda Gosei Co Ltd | Battery device |
| JP6190213B2 (en) * | 2013-08-28 | 2017-08-30 | 日立マクセル株式会社 | Battery pack |
| EP3046159B1 (en) * | 2013-09-11 | 2018-12-19 | NGK Insulators, Ltd. | Battery-pack case |
| JP6394964B2 (en) * | 2014-12-22 | 2018-09-26 | 株式会社オートネットワーク技術研究所 | Power storage module |
| CN206099077U (en) * | 2016-09-30 | 2017-04-12 | 比亚迪股份有限公司 | Power supply cabinet |
| CN113540663B (en) * | 2020-03-31 | 2022-11-11 | 比亚迪股份有限公司 | Battery module and vehicle |
| KR20220012037A (en) * | 2020-07-22 | 2022-02-03 | 주식회사 엘지에너지솔루션 | Battery module having a simple connection structure between cell lead and voltage sensing member and battery pack including the same |
| KR20220012033A (en) * | 2020-07-22 | 2022-02-03 | 주식회사 엘지에너지솔루션 | Battery module having a simple connection structure between cell lead and voltage sensing member and battery pack including the same |
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Also Published As
| Publication number | Publication date |
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| CN102870252B (en) | 2015-10-14 |
| JPWO2011108680A1 (en) | 2013-06-27 |
| TWI479723B (en) | 2015-04-01 |
| JP5750097B2 (en) | 2015-07-15 |
| WO2011108680A1 (en) | 2011-09-09 |
| TW201205927A (en) | 2012-02-01 |
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