WO2016021242A1 - 電池モジュール - Google Patents

電池モジュール Download PDF

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Publication number
WO2016021242A1
WO2016021242A1 PCT/JP2015/062106 JP2015062106W WO2016021242A1 WO 2016021242 A1 WO2016021242 A1 WO 2016021242A1 JP 2015062106 W JP2015062106 W JP 2015062106W WO 2016021242 A1 WO2016021242 A1 WO 2016021242A1
Authority
WO
WIPO (PCT)
Prior art keywords
pair
battery
cover member
claw portions
claw
Prior art date
Application number
PCT/JP2015/062106
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
直人 守作
加藤　崇行
浩生 植田
Original Assignee
株式会社豊田自動織機
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社豊田自動織機 filed Critical 株式会社豊田自動織機
Priority to DE112015003593.1T priority Critical patent/DE112015003593T5/de
Publication of WO2016021242A1 publication Critical patent/WO2016021242A1/ja

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Classifications

    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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

Definitions

  • the present invention relates to a battery module.
  • a battery module formed by incorporating a plurality of battery cells for example, there is a power storage module described in Patent Document 1.
  • a plurality of battery cells are accommodated in a battery holder.
  • the cover member is attached to the battery holder by screwing.
  • the present invention has been made to solve the above-described problems, and provides a battery module that has a simple configuration and can prevent the cover member from being detached from the battery holder even when an inertial force is applied. For the purpose.
  • a battery module includes an array in which battery cells each including an electrode assembly are accommodated in a case, and a plurality of battery holders for holding each of the battery cells. And a cover member assembled to the battery holder, the battery holder having an engaging claw portion that engages with the cover member, and the engaging claw portion covers the cover member in opposite directions in one battery holder.
  • a pair of second claw portions that engage with each other.
  • An engagement claw portion that engages the battery holder with the cover member is constituted by a pair of second claw portions that engage with the cover member in opposite directions to each other.
  • the cover member may have a pair of through holes through which the pair of second claw portions are respectively inserted.
  • the pair of second claw portions positioned between the pair of first claw portions can be firmly engaged with the cover member.
  • the cover member has a plate-like main body portion and a pair of standing portions standing on the end of the main body portion, and the pair of first claw portions engage with the pair of standing portions, respectively. It may be. In this case, the pair of first claw portions positioned outside the pair of second claw portions can be firmly engaged with the cover member.
  • the cover member may have a pair of through holes through which the pair of first claw portions are respectively inserted. In this case, the pair of first claw portions positioned outside the pair of second claw portions can be firmly engaged with the cover member.
  • a battery module includes an array in which battery cells each including an electrode assembly are accommodated in a case, a plurality of battery holders for holding each of the battery cells, and a battery holder
  • the battery holder has an engaging claw portion that engages with the cover member, and the engaging claw portion in the one battery holder engages with the cover member in opposite directions.
  • a pair of second claws that engage with the cover member in opposite directions in a relation opposite to the pair of first claws And have.
  • An engagement claw portion that engages the battery holder with the cover member is constituted by the pair of second claw portions that are engaged with the cover member in the direction.
  • the shaft portions of the pair of first claw portions and the shaft portions of the pair of second claw portions may be at the same position when viewed from the arrangement direction of the battery cells in the array. In this case, the arrangement configuration of the pair of first claw portions and the pair of second claw portions can be simplified.
  • the cover member has a pair of first through holes through which the pair of first claw portions are respectively inserted, and a pair of second through holes through which the pair of second claw portions are respectively inserted. Also good. In this case, the pair of first claw portions and the pair of second claw portions can be firmly engaged with the cover member.
  • the pair of first through holes and the pair of second through holes may be at the same position when viewed from the arrangement direction of the battery cells in the array. In this case, the arrangement configuration of the first through hole and the second through hole can be simplified.
  • the battery module it is possible to suppress the cover member from being detached from the battery holder even when an inertial force is applied with a simple configuration.
  • FIG. 1 It is a perspective view which shows the battery module which concerns on 1st Embodiment of this invention. It is sectional drawing which looked at the battery module shown in FIG. 1 from the arrangement direction of the array. It is sectional drawing which shows an example of an internal structure of a battery cell. It is a principal part expansion schematic diagram which shows an example of the engagement structure of a battery holder and a cover member. It is a principal part expansion schematic diagram which shows an example of an effect
  • FIG. 1 is a perspective view showing a first embodiment of a battery module according to the present invention.
  • FIG. 2 is a cross-sectional view of the battery module shown in FIG. 1 as viewed from the arrangement direction of the array.
  • the battery module 1 includes an array 2 formed by arranging a plurality of battery cells 21, a battery holder 3 that holds each of the battery cells 21, and a cover member that is assembled to the battery holder 3. 4 is provided.
  • End plates 5 are respectively provided at the array ends of the battery cells 21 in the array 2.
  • a bolt B is inserted between the end plates 5 and 5 through the battery holder 3.
  • the bolt B is inserted from one end plate 5 toward the other end plate 5, and a nut N is screwed to the other end plate 5 side.
  • the battery cell 21 is sandwiched and modularized, and a restraining load is applied to the array 2.
  • the battery holder 3 is made of resin and has a rectangular frame shape as a whole as shown in FIG.
  • the battery holder 3 includes a first wall portion 11 corresponding to the bottom portion of the battery cell 21, second wall portions 12 and 12 corresponding to both side portions in the width direction of the battery cell 21, and a thickness direction of the battery cell 21. And a third wall portion 13 corresponding to the one side portion.
  • a region surrounded by the first wall portion 11, the second wall portions 12, 12, and the third wall portion 13 is an accommodation space in which the battery cell 21 is accommodated.
  • columnar leg portions 14 are provided at corners formed by the first wall portion 11 and the second wall portion 12.
  • the leg portion 14 extends in the thickness direction of the battery holder 3, and an insertion hole 14 a through which the bolt B is inserted is provided inside the leg portion 14.
  • An end portion of the second wall portion 12 on the third wall portion 13 side is a protruding portion 15 that protrudes beyond the position of the third wall portion 13.
  • a pair of first claw portions 32 ⁇ / b> A and 32 ⁇ / b> A are provided at the distal end portion of the protruding portion 15.
  • the pair of first claw portions 32 ⁇ / b> A and 32 ⁇ / b> A are provided on the projecting portion 15 on one end side in the arrangement direction of the battery cells 21 (front side in the depth direction in FIG. 1).
  • Terminal accommodating portions 16 and 16 that surround the connection terminals 25 of the battery cell 21 when the battery cell 21 is accommodated in the accommodating space are respectively provided at both ends in the width direction of the third wall portion 13.
  • the third wall portion 13 is provided with a pair of column members 17 and 17 at positions inside the terminal accommodating portions 16 and 16, respectively.
  • the column member 17 extends in the thickness direction of the battery holder 3, and an insertion hole 17 a through which the bolt B is inserted is provided inside the column member 17.
  • a pair of second claw portions 32 ⁇ / b> B and 32 ⁇ / b> B are provided on the top of the column member 17.
  • the pair of second claw portions 32 ⁇ / b> B and 32 ⁇ / b> B are provided on one end side of the column member 17 in the arrangement direction of the battery cells 21 (front side in the depth direction in FIG. 1).
  • the cover member 4 is a resin member used for mounting electronic parts used for controlling charging / discharging of battery cells, control parts for controlling the battery module 1, and the like. As shown in FIG. 1, for example, the cover member 4 is arranged in parallel in the arrangement direction of the battery cells 21 in the array 2, and is attached to the battery holder 3 so as to face the lid portion 24 (see FIG. 3) of each battery cell 21. It is assembled. In the present embodiment, two cover members 4 are provided for one battery module.
  • the cover member 4 has a main body portion 18 formed on a rectangular flat plate, and a pair of upright portions 19 and 19 provided at both end portions in the width direction of the main body portion 18.
  • the main body portion 18 is provided with a pair of through holes 33 and 33 formed corresponding to the positions of the pair of second claw portions 32B and 32B of the battery holder 3.
  • the standing portions 19 and 19 have, for example, a plate shape, and are provided over the entire both ends in the width direction of the main body portion 18.
  • the standing portion 19 extends along the inner surface of the protruding portion 15 in a state where the cover member 4 is assembled to the battery holder 3.
  • the battery cell 21 held by the battery holder 3 includes, for example, a hollow bottomed case 22 having a substantially rectangular parallelepiped shape, and an electrode assembly 23 accommodated in the case 22.
  • the case 22 is made of a metal such as aluminum.
  • an organic solvent-based or non-aqueous electrolyte is accommodated in the case 22.
  • the connection terminal 25 (the positive terminal 25A and the negative terminal 25B) described above is disposed on the lid portion 24 of the case 22 so as to be separated from each other.
  • the positive electrode terminal 25 ⁇ / b> A is fixed to the lid portion 24 via the insulating member 26, and the negative electrode terminal 25 ⁇ / b> B is fixed to the lid portion 24 via the insulating member 27.
  • An opening valve 28 that is broken and opened when the internal pressure of the case 22 rises above a threshold value is provided at a substantially central portion of the lid portion 24.
  • the positive terminal 25A of one battery cell 21 is electrically connected to the negative terminal 25B of one adjacent battery cell 21 by a bus bar member (not shown), and the negative terminal of one battery cell 21 is the bus bar.
  • the member is electrically connected to the positive electrode terminal 25A of the other battery cell 21 adjacent thereto.
  • the electrode assembly 23 includes, for example, a positive electrode, a negative electrode, and a bag-shaped separator disposed between the positive electrode and the negative electrode.
  • the positive electrode is accommodated in the separator, and in this state, the positive electrode and the negative electrode are alternately stacked via the separator.
  • the positive electrode is electrically connected to the positive electrode terminal 25 ⁇ / b> A via the conductive member 29, and the negative electrode is electrically connected to the negative electrode terminal 25 ⁇ / b> B via another conductive member 29.
  • FIG. 4 is an enlarged schematic view of an essential part showing an example of an engagement structure between the battery holder and the cover member.
  • the engagement structure 31A includes an engagement claw portion 32 (a pair of first claw portions 32A and 32A and a pair of second claw portions 32B and 32B) provided on the battery holder 3 side.
  • the pair of first claw portions 32 ⁇ / b> A and 32 ⁇ / b> A is provided in a protruding shape at the tip portion of the protruding portion 15 in the battery holder 3.
  • the pair of first claw portions 32A and 32A are opposite to each other (both are inward). That is, one first claw portion 32A protrudes from the inner wall of one protruding portion 15 toward the other protruding portion 15 side, and the other first claw portion 32A extends from the inner wall of the other protruding portion 15 to one side. It protrudes toward the protruding portion 15 side.
  • the pair of first claw portions 32 ⁇ / b> A and 32 ⁇ / b> A are engaged with the tip portions of the standing portions 19 in the cover member 4, respectively.
  • the cover member 4 When the battery module 1 is assembled, the cover member 4 is attached to the battery holder 3 from above. At this time, the projecting portions 15 serving as the shaft portions of the pair of first claw portions 32 ⁇ / b> A and 32 ⁇ / b> A are both elastically displaced outward in the width direction of the battery cell 21.
  • the cover member 4 When the cover member 4 is fitted between the projecting portions 15 and 15 of the battery holder 3 until the tip end portion of the standing portion 19 of the cover member 4 is below the first claw portion 32A, The pair of first claw portions 32 ⁇ / b> A and 32 ⁇ / b> A engage with the distal end portion of the standing portion 19 in a state where the position is restored and the inner wall of the protruding portion 15 is in contact with the outer wall of the standing portion 19.
  • one first claw portion 32A and the other first claw portion 32A face each other, but one first claw portion 32A.
  • the other first claw portion 32 ⁇ / b> A may be displaced from each other in the arrangement direction of the battery cells 21.
  • the other first claw portion 32A may be displaced in the arrangement direction of the battery cells 21 by the width of the one first claw portion 32A.
  • the pair of second claw portions 32B and 32B are provided in a protruding shape on the top of the column member 17 in the battery holder 3 (see FIG. 2).
  • the pair of second claw portions 32B and 32B are located between the pair of first claw portions 32A and 32A.
  • Between the pair of first claw portions 32A and 32A is a space between one first claw portion 32A and the other first claw portion 32A in the width direction of the battery cell 21 in a plan view of the battery module 1. Refers to an area.
  • the pair of second claw portions 32B and 32B are opposite to each other (both outward) in a relation opposite to the pair of first claw portions 32A and 32A. That is, one of the second claw portions 32B protrudes from the tip end portion of the shaft portion 32b erected on the upper surface of the one column member 17 toward the one protrusion portion 15 and the other second claw portion 32B. Projecting from the tip end portion of the shaft portion 32 b erected on the upper surface of the other column member 17 toward the other projecting portion 15. The pair of second claw portions 32B and 32B are engaged with the main body portion 18 of the cover member 4 through the pair of through holes 33 and 33, respectively.
  • the length (internal dimension) of the battery cell 21 in the through hole 33 in the width direction is the length in the width direction of the battery cell 21 in the second claw portion 32B (the length of the shaft portion 32b and the protruding length from the shaft portion 32b).
  • the length is the same as or slightly larger than the outer dimension).
  • one second claw portion 32B and the other second claw portion 32B face each other, but one second claw portion 32B.
  • the other second claw portion 32 ⁇ / b> B may be displaced from each other in the arrangement direction of the battery cells 21.
  • the other second claw portion 32B may be shifted in the arrangement direction of the battery cells 21 by the width of the one second claw portion 32B.
  • FIG. 5 is a diagram illustrating a state in which the cover member 4 is shifted to the left side of the drawing with respect to the battery holder 3 due to inertial force.
  • the cover member 4 is displaced to the left side with respect to the battery holder, the engagement between the first claw portion 32A on the right side and the standing portion 19 and the far left side as viewed from the first claw portion 32A on the right side.
  • the engagement between the second claw portion 32B and the cover member 4 is easily disengaged.
  • a pair of through holes 33, 33 through which the pair of second claw portions 32B, 32B are inserted are formed in the main body portion 18 of the cover member 4.
  • the pair of second claw portions 32B, 32B positioned between the pair of first claw portions 32A, 32A can be firmly engaged with the cover member 4 by passing through the through holes 33, 33.
  • the shaft portion 32 b of the second claw portion 32 ⁇ / b> B disengaged from the cover member 4 is The amount of displacement of the cover member 4 is regulated by hitting the inner wall of the through hole 33. Therefore, it can suppress more reliably that the cover member 4 remove
  • the pair of first claw portions 32A and 32A are engaged with the pair of standing portions 19 of the cover member 4, respectively. Accordingly, the pair of first claw portions 32A and 32A positioned outside the pair of second claw portions 32B and 32B can be firmly engaged with the cover member 4.
  • the standing portion 19 of the cover member 4 extends along the inner surface side of the protruding portion 15 of the battery holder 3, it is possible to suppress the occurrence of deviation between the battery holder 3 and the cover member 4 when an inertial force is applied.
  • FIG. 6 is an enlarged cross-sectional view of a main part showing a modification of the engagement structure.
  • the main body portion 18 of the cover member 4 is used.
  • a pair of through holes 34, 34 are further provided outside the pair of through holes 33, 33, and the pair of first claw portions 32 ⁇ / b> A, 32 ⁇ / b> A respectively inserted into the pair of through holes 34, 34 are the main body of the cover member 4. The portion 18 is engaged.
  • one first claw portion 32A protrudes from the tip end portion of the shaft portion 32a erected on the upper surface of one column member 17 toward the other erected portion 19 side, and the other first claw portion 32A.
  • the claw portion 32A protrudes from the tip portion of the shaft portion 32a erected on the upper surface of the other column member 17 toward the one erected portion 19 side.
  • the pair of first claw portions 32A and 32A engage with the main body portion 18 in a state where the protruding wall portion of the first claw portion 32A in the shaft portion 32a is in contact with the inner wall of the through hole 34. ing.
  • FIG. 7 is an enlarged cross-sectional view of a main part showing a further modification of the engagement structure.
  • the engagement structure 31C shown in the figure is different from the engagement structure 31B shown in FIG. 6 in the direction of the pair of first claw portions 32A and 32A and the pair of second claw portions 32B and 32B. That is, in the engagement structure 31C, the pair of first claw portions 32A and 32A are directed outward, and the pair of second claw portions 32B and 32B are directed inward.
  • a pair of first claw portions 32A and 32A and a pair of second claw portions 32B and 32B are provided on all the battery holders 3, but some claw portions are provided. It is good also as a structure which omitted.
  • a pair of first claw portions 32A and 32A may be formed in all the battery holders 3, and a pair of second claw portions 32B and 32B may be formed in every other (or every other) battery holder 3. .
  • FIG. 8 is an enlarged view showing a main part of the battery module engagement structure according to the second embodiment of the present invention.
  • the engagement structure 41A of the battery module 1 according to the second embodiment includes a pair of first claw portions 42A and 42A and a pair of second claw portions 42B, as the engagement claw portions 42.
  • a pair of first claw portions 32A and 32A and a pair of second claw portions 32B and 32B are provided in the same battery holder 3 in that the battery holder 3 is different from 42B. It is different from the embodiment.
  • a pair of first claw portions 42 ⁇ / b> A and 42 ⁇ / b> A are provided in one battery holder 3, and a pair of second claws are provided in another battery holder adjacent to the one battery holder 3.
  • Claw portions 42B and 42B are provided.
  • Holes 44 and 44 are formed in the main body 18 of the cover member 4.
  • the pair of first claw portions 42A, 42A provided in one battery holder 3 are in opposite directions (both inward), and the pair of first through holes 43, 43 is engaged with the main body 18 of the cover member 4.
  • the pair of second claw portions 42B and 42B provided in the other battery holder 3 are opposite to each other (both outward) in a relation opposite to the pair of first claw portions 42A and 42A. And engages with the main body 18 of the cover member 4 through the pair of second through holes 44, 44.
  • the shaft portions 42a and 42a of the pair of first claw portions 42A and 42A and the shaft portions 42b and 42b of the pair of second claw portions 42B and 42B. are in the same position.
  • the pair of first claw portions 42A and 42A and the pair of second claw portions 42B and 42B are provided in different battery holders 3. Accordingly, since the pair of first claw portions 42A and 42A and the pair of second claw portions 42B and 42B are two-dimensionally arranged in a plan view of the battery module 1, the pair of first claw portions 32A and 32A. Compared to the first embodiment in which the pair of second claw portions 32B and 32B are provided in the same battery holder 3, the number of parts of the claw portions is also suppressed. Furthermore, in the engagement structure 41A, since both the pair of first claw portions 42A and 42A and the pair of second claw portions 42B and 42B are engaged with the main body portion 18 of the cover member 4, the shaft portion 42a.
  • the shaft portions 42a and 42a of the pair of first claw portions 42A and 42A and the pair of second claw portions 42B and 42B are viewed from the arrangement direction of the battery cells 21 in the array body 2.
  • the shaft portions 42b and 42b are in the same position. Thereby, the arrangement configuration of the pair of first claw portions 42A and 42A and the pair of second claw portions 42B and 42B can be simplified.
  • a pair of second through holes 44, 44 are formed in the main body 18 of the cover member 4. Therefore, the inertia force is generated when the shaft portion 42a of the first claw portion 42A hits the inner wall of the first through-hole 43 or the shaft portion 42b of the second claw portion 42B hits the inner wall of the second through-hole 44.
  • the amount of displacement of the cover member 4 with respect to the battery holder 3 in the case of the action of the battery member 3 is restricted, and the cover member 4 can be more reliably suppressed from being detached from the battery holder 3.
  • FIG. 9 is an enlarged view of a main part showing a modified example of the engagement structure.
  • the pair of first through holes 43 and 43 and the pair of second through holes 44 and 44 are located at the same position when viewed from the arrangement direction of the battery cells 21 in the array 2. This is different from the engagement structure 41A shown in FIG.
  • the pair of first claw portions 42A and 42A may both be outward and the pair of second claw portions 42B and 42B may be inward.
  • one battery holder 3 provided with a pair of first claw portions 42A and 42A and another battery holder 3 provided with a pair of second claw portions 42B and 42B are not necessarily adjacent to each other. May be. That is, the battery holder 3 having no claw portion may be interposed between one battery holder 3 and another battery holder 3.
  • the length (outside dimension) of the battery cells 21 in the pair of first claw portions 42A and 42A in the arrangement direction and the pair of first through holes in the engagement structures 41A and 41B, the length (outside dimension) of the battery cells 21 in the pair of first claw portions 42A and 42A in the arrangement direction and the pair of first through holes.
  • the length (inner dimension) of the battery cell 21 in the arrangement direction at 43, 43 coincides with the length (outer dimension) of the battery cell 21 in the arrangement direction of the pair of second claw portions 42B, 42B.
  • the length in the arrangement direction of the battery cells 21 in the pair of first through holes 43, 43 is set in the pair of first claws 42 ⁇ / b> A, 42 ⁇ / b> A.
  • the length in the arrangement direction of the battery cells 21 in the pair of second through holes 44, 44 is set to be longer than the length in the arrangement direction of the battery cells 21, and the length of the battery cell 21 in the pair of second claw portions 42B, 42B. It may be larger than the length in the arrangement direction.
  • the center positions of the battery cells 21 in the arrangement direction are made coincident with each other, and the shaft portion 42a and the shaft portion 42b are separated from any inner wall in the arrangement direction of the battery cells 21 in the first through holes 43 and the second through holes 44. You may do it.
  • the shaft portion 42 a and the shaft portion 42 b may be in contact with any inner wall in the arrangement direction of the battery cells 21 in the first through hole 43 and the second through hole 44.
  • the expansion direction of the battery cell 21 is designed in advance, it is preferable to separate the inner wall on the expansion direction side from the shaft portion 42a and the shaft portion 42b.
  • the expansion of the first through hole 43 and the second through hole 44 in the arrangement direction of the battery cells 21 causes expansion of the battery cells 21 in the arrangement direction when the battery module 1 is used. It is allowable and can prevent damage to the first claw portion 42A and the second claw portion 42B. Further, the dimensional tolerance of the first claw portion 42A and the second claw portion 42B in the battery holder 3 and the dimensional tolerance of the first through hole 43 and the second through hole 44 in the main body portion 18 of the cover member 4 are set. It can absorb, and workability at the time of attaching cover member 4 to battery holder 3 can be improved.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
PCT/JP2015/062106 2014-08-05 2015-04-21 電池モジュール WO2016021242A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015003593.1T DE112015003593T5 (de) 2014-08-05 2015-04-21 Batteriemodul

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-159365 2014-08-05
JP2014159365A JP6372232B2 (ja) 2014-08-05 2014-08-05 電池モジュール

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Publication Number Publication Date
WO2016021242A1 true WO2016021242A1 (ja) 2016-02-11

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JP (1) JP6372232B2 (enrdf_load_stackoverflow)
DE (1) DE112015003593T5 (enrdf_load_stackoverflow)
WO (1) WO2016021242A1 (enrdf_load_stackoverflow)

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Publication number Priority date Publication date Assignee Title
JP6790714B2 (ja) * 2016-10-20 2020-11-25 株式会社豊田自動織機 電池モジュール
WO2021039511A1 (ja) * 2019-08-23 2021-03-04 株式会社Ｇｓユアサ 蓄電装置
WO2022030122A1 (ja) * 2020-08-04 2022-02-10 株式会社Ｇｓユアサ 蓄電装置及びその製造方法
JP7427638B2 (ja) * 2021-08-31 2024-02-05 プライムアースＥｖエナジー株式会社 電池モジュール
WO2025057517A1 (ja) * 2023-09-14 2025-03-20 ビークルエナジージャパン株式会社 組電池の製造方法、組電池の製造装置及び組電池

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JP2003346749A (ja) * 2002-05-30 2003-12-05 Japan Storage Battery Co Ltd 組電池及びこの組電池用の枠体
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JP2012248482A (ja) * 2011-05-30 2012-12-13 Toshiba Corp 二次電池装置
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JP2013191422A (ja) * 2012-03-14 2013-09-26 Toshiba Corp 二次電池装置

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