JP2014143153A - Power storage module - Google Patents
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- JP2014143153A JP2014143153A JP2013012412A JP2013012412A JP2014143153A JP 2014143153 A JP2014143153 A JP 2014143153A JP 2013012412 A JP2013012412 A JP 2013012412A JP 2013012412 A JP2013012412 A JP 2013012412A JP 2014143153 A JP2014143153 A JP 2014143153A
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- 238000003860 storage Methods 0.000 title claims description 41
- 238000003780 insertion Methods 0.000 claims description 39
- 230000037431 insertion Effects 0.000 claims description 39
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005304 joining Methods 0.000 description 11
- 238000003466 welding Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000011888 foil Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
本発明は、蓄電装置をバスバーで電気的に接続した蓄電モジュールに関する。 The present invention relates to a power storage module in which power storage devices are electrically connected by a bus bar.
ＥＶ（Electric Vehicle）やＰＨＶ（Plug in Hybrid Vehicle）などの車両には、原動機となる電動機への供給電力を蓄える蓄電モジュールが搭載されている。蓄電モジュールは、例えば、特許文献１に開示されるように、二次電池の電極端子をバスバーで電気的に接続して構成される。 Vehicles such as EVs (Electric Vehicles) and PHVs (Plug in Hybrid Vehicles) are equipped with power storage modules that store electric power supplied to electric motors as prime movers. For example, as disclosed in Patent Document 1, the power storage module is configured by electrically connecting electrode terminals of a secondary battery with a bus bar.
蓄電モジュールを構成する場合は、バスバーを通じて良好な導電経路を確保することが望ましい。
この発明は、このような従来の技術に存在する問題点に着目してなされたものであり、その目的は、良好な導電経路を得ることができる蓄電モジュールを提供することにある。
When configuring a power storage module, it is desirable to ensure a good conductive path through the bus bar.
This invention was made paying attention to the problem which exists in such a prior art, and the objective is to provide the electrical storage module which can obtain a favorable electrically conductive path | route.
上記課題を解決する蓄電モジュールは、ケースと、前記ケース内に収容された電極組立体と、前記ケースの挿通孔を通って前記ケースの外部に露出されるとともに前記電極組立体に電気的に接続された電極端子と、を有する蓄電装置を備え、前記蓄電装置の電極端子をバスバーで電気的に接続してなる蓄電モジュールにおいて、前記電極端子を前記バスバーに当接するように塑性変形させた当接部を有し、前記当接部によって前記電極端子と前記バスバーとが接合されている。 An electricity storage module that solves the above problems is exposed to the outside of the case and electrically connected to the electrode assembly through a case, an electrode assembly housed in the case, an insertion hole of the case A power storage module comprising: a power storage device comprising: a power storage device including: The electrode terminal and the bus bar are joined by the contact portion.
この構成によれば、バスバーと電極端子は、電極端子をバスバーに当接するように塑性変形させた当接部によって接合される。このため、電極端子とバスバーは、電極端子の表面を覆っていた酸化被膜が破れた状態で接合される。これにより、電極端子とバスバーとの間に良好な導電経路を得ることができる。 According to this configuration, the bus bar and the electrode terminal are joined by the contact portion that is plastically deformed so that the electrode terminal contacts the bus bar. For this reason, an electrode terminal and a bus-bar are joined in the state to which the oxide film which covered the surface of the electrode terminal was torn. Thereby, a favorable conductive path can be obtained between the electrode terminal and the bus bar.
上記蓄電モジュールにおいて、前記電極端子と前記バスバーを接合する溶接部をさらに有しても良い。これによれば、溶接部によって導電性をさらに向上させることができる。
上記蓄電モジュールにおいて、前記バスバーは、前記電極端子が挿通される挿通孔を有し、前記電極端子の外周と前記バスバーの挿通孔の内周とが当接していることが好ましい。これによれば、電極端子の外周とバスバーの挿通孔の内周との間にも導電経路を得ることができ、導電性をさらに向上させることができる。
The said electrical storage module may further have a welding part which joins the said electrode terminal and the said bus bar. According to this, the conductivity can be further improved by the welded portion.
In the power storage module, it is preferable that the bus bar has an insertion hole through which the electrode terminal is inserted, and an outer periphery of the electrode terminal is in contact with an inner periphery of the insertion hole of the bus bar. According to this, a conductive path can be obtained also between the outer periphery of the electrode terminal and the inner periphery of the insertion hole of the bus bar, and the conductivity can be further improved.
上記蓄電モジュールにおいて、前記ケースと前記電極端子を絶縁する絶縁部材を有し、前記絶縁部材は、前記ケースと前記電極端子の間に位置し、前記絶縁部材と前記バスバーが互いに当接した状態で、前記電極端子と前記バスバーとが接合されていても良い。これによれば、簡単な構成で電極端子をケースに固定することができるとともに、バスバーによって絶縁部材をケースとの間で狭圧し、絶縁部材に経時的な変形が生じたとしても絶縁性を確保できる。 The power storage module includes an insulating member that insulates the case and the electrode terminal, the insulating member is positioned between the case and the electrode terminal, and the insulating member and the bus bar are in contact with each other. The electrode terminal and the bus bar may be joined. According to this, the electrode terminal can be fixed to the case with a simple configuration, and the insulating member is tightly pressed between the case and the insulating member by the bus bar, so that insulation is ensured even if the insulating member is deformed over time. it can.
本発明によれば、良好な導電経路を得ることができる。 According to the present invention, a good conductive path can be obtained.
（第１の実施形態）
以下、蓄電モジュールを具体化した第１の実施形態を図１及び図２にしたがって説明する。
(First embodiment)
Hereinafter, a first embodiment in which the power storage module is embodied will be described with reference to FIGS. 1 and 2.
図１に示すように、蓄電モジュール１０は、リチウムイオン電池などの蓄電装置としての二次電池１１を複数個、電気的に接続することによって構成される。各二次電池１１は極性の異なる電極端子１２，１３を備え、これらの電極端子１２，１３は二次電池１１のケース１４から外部に露出している。蓄電モジュール１０を構成する各二次電池１１は、一方の電極端子１２が隣り合う二次電池１１における極性の異なる他の電極端子１３に電気的に接続されるとともに、他方の電極端子１３が隣り合う二次電池１１における極性の異なる一方の電極端子１２に電気的に接続される。隣り合う二次電池１１の電極端子１２，１３同士は、端子接続部材であるバスバー１５によって接続される。バスバー１５は、金属製（例えば、アルミニウム製）の板状部材である。 As shown in FIG. 1, the power storage module 10 is configured by electrically connecting a plurality of secondary batteries 11 as power storage devices such as lithium ion batteries. Each secondary battery 11 includes electrode terminals 12 and 13 having different polarities, and these electrode terminals 12 and 13 are exposed to the outside from the case 14 of the secondary battery 11. In each secondary battery 11 constituting the power storage module 10, one electrode terminal 12 is electrically connected to another electrode terminal 13 having a different polarity in the adjacent secondary battery 11, and the other electrode terminal 13 is adjacent. It is electrically connected to one electrode terminal 12 having a different polarity in the matching secondary battery 11. The electrode terminals 12 and 13 of the adjacent secondary batteries 11 are connected by a bus bar 15 that is a terminal connecting member. The bus bar 15 is a plate member made of metal (for example, aluminum).
二次電池１１は、ケース本体１６とケース本体１６の開口部を覆う蓋１７で構成されたケース１４内に、電極組立体１８及び電解液が収容されている。電極組立体１８は、極性の異なる電極を交互に積層するとともに、電極の間にセパレータを介在させた構造である。各電極はシート状であり、金属箔の両面に活物質層を有する。正極電極の金属箔は例えばアルミニウム箔であり、アルミニウム箔の両面に正極活物質層を有する。また、負極電極の金属箔は例えば銅箔であり、銅箔の両面に負極活物質層を有する。同極の電極は、これらの電極との間で電気を授受する金属製の導電部材と電気的に接続されており、導電部材を介して電極端子１２，１３に電気的に接続されている。例えば、正極電極は導電部材となるアルミニウム板を介して一方の電極端子１２に電気的に接続されている一方、負極電極は導電部材となる銅板を介して他方の電極端子１３に電気的に接続されている。 In the secondary battery 11, an electrode assembly 18 and an electrolytic solution are accommodated in a case 14 constituted by a case body 16 and a lid 17 that covers an opening of the case body 16. The electrode assembly 18 has a structure in which electrodes having different polarities are alternately stacked and a separator is interposed between the electrodes. Each electrode has a sheet shape and has an active material layer on both surfaces of the metal foil. The metal foil of the positive electrode is, for example, an aluminum foil, and has a positive electrode active material layer on both surfaces of the aluminum foil. Moreover, the metal foil of a negative electrode is copper foil, for example, and has a negative electrode active material layer on both surfaces of copper foil. The electrodes of the same polarity are electrically connected to a metal conductive member that exchanges electricity with these electrodes, and are electrically connected to the electrode terminals 12 and 13 via the conductive member. For example, the positive electrode is electrically connected to one electrode terminal 12 via an aluminum plate serving as a conductive member, while the negative electrode is electrically connected to the other electrode terminal 13 via a copper plate serving as a conductive member. Has been.
以下、電極端子１２の構造、及び電極端子１２とバスバー１５の接合構造について説明する。なお、電極端子１３の構造は電極端子１２の構造と同じであり、電極端子１３とバスバー１５の接続構造は電極端子１２とバスバー１５の接続構造と同じである。 Hereinafter, the structure of the electrode terminal 12 and the bonding structure of the electrode terminal 12 and the bus bar 15 will be described. The structure of the electrode terminal 13 is the same as the structure of the electrode terminal 12, and the connection structure of the electrode terminal 13 and the bus bar 15 is the same as the connection structure of the electrode terminal 12 and the bus bar 15.
図２に示すように、電極端子１２は、四角板状の基部１９と、基部１９から立設された円柱状の極柱部２０と、を有する。極柱部２０の外周の一部にはねじ部２１を有する。
電極端子１２は、基部１９が導電部材２４上に接合されているとともに、極柱部２０の一部が蓋１７の外面１７ａと内面１７ｂを貫通する挿通孔１７ｃからケース１４の外部に露出している。極柱部２０のねじ部２１は、ケース１４の外部に露出している。電極端子１２の軸方向に直交する方向に沿う基部１９の断面積は、挿通孔１７ｃの開口面積よりも大きい。これにより、ケース１４の内部に位置する基部１９は、蓋１７の挿通孔１７ｃからケース１４の外部へ抜け出し不能となっている。
As shown in FIG. 2, the electrode terminal 12 includes a square plate-shaped base portion 19 and a cylindrical pole column portion 20 erected from the base portion 19. A part of the outer periphery of the pole column portion 20 has a screw portion 21.
In the electrode terminal 12, the base portion 19 is joined to the conductive member 24, and a part of the pole column portion 20 is exposed to the outside of the case 14 through the insertion hole 17 c that penetrates the outer surface 17 a and the inner surface 17 b of the lid 17. Yes. The screw portion 21 of the pole column portion 20 is exposed to the outside of the case 14. The cross-sectional area of the base 19 along the direction orthogonal to the axial direction of the electrode terminal 12 is larger than the opening area of the insertion hole 17c. As a result, the base 19 located inside the case 14 cannot be pulled out of the case 14 through the insertion hole 17 c of the lid 17.
挿通孔１７ｃの内周と極柱部２０の外周との間には、絶縁部材２５が介装されている。これにより、絶縁部材２５は、電極端子１２と蓋１７（ケース１４）との間に位置する。絶縁部材２５は、円環状の筒状部２６と、筒状部２６の軸方向一端から径方向外方へ延設されたフランジ部２７と、を有する。筒状部２６は、挿通孔１７ｃの内周と極柱部２０の外周との間に介装されている。フランジ部２７は、蓋１７の外面１７ａにおいて挿通孔１７ｃの周囲に係止されている。絶縁部材２５は樹脂製であり、この絶縁部材２５によって挿通孔１７ｃの内周と極柱部２０の外周とが絶縁されている。また、基部１９の面上には、極柱部２０を囲む円環状のシール部材２８が設けられている。シール部材２８は、ケース１４の内部において蓋１７の内面１７ｂと基部１９の面との間に位置している。シール部材２８は、例えばＯリングである。 An insulating member 25 is interposed between the inner periphery of the insertion hole 17 c and the outer periphery of the pole column portion 20. Thereby, the insulating member 25 is located between the electrode terminal 12 and the lid | cover 17 (case 14). The insulating member 25 includes an annular cylindrical portion 26 and a flange portion 27 that extends radially outward from one axial end of the cylindrical portion 26. The cylindrical part 26 is interposed between the inner periphery of the insertion hole 17 c and the outer periphery of the polar column part 20. The flange portion 27 is locked around the insertion hole 17 c on the outer surface 17 a of the lid 17. The insulating member 25 is made of resin, and the insulating member 25 insulates the inner periphery of the insertion hole 17 c from the outer periphery of the pole column portion 20. An annular seal member 28 surrounding the pole column portion 20 is provided on the surface of the base portion 19. The seal member 28 is located between the inner surface 17 b of the lid 17 and the surface of the base portion 19 inside the case 14. The seal member 28 is, for example, an O-ring.
極柱部２０のねじ部２１には、ナット２９が螺合されている。蓋１７の外面１７ａと、ナット２９の蓋１７側の端面２９ａとの間には、絶縁部材２５のフランジ部２７が狭圧されており、フランジ部２７によって蓋１７とナット２９が絶縁されている。ナット２９が極柱部２０に螺合されることによって、ナット２９と基部１９との間に、フランジ部２７、蓋１７、及びシール部材２８が狭圧されるとともに電極端子１２が蓋１７（ケース１４）に締結されている。この締結状態においてシール部材２８は、圧縮状態で蓋１７の内面１７ｂ及び基部１９の面に密接し、挿通孔１７ｃの周囲をシールしている。 A nut 29 is screwed into the threaded portion 21 of the polar column portion 20. Between the outer surface 17a of the lid 17 and the end surface 29a of the nut 29 on the lid 17 side, the flange portion 27 of the insulating member 25 is narrowly pressed, and the lid 17 and the nut 29 are insulated by the flange portion 27. . When the nut 29 is screwed into the pole portion 20, the flange portion 27, the lid 17, and the seal member 28 are tightly pressed between the nut 29 and the base portion 19, and the electrode terminal 12 is placed in the lid 17 (case). 14). In this fastened state, the seal member 28 is in close contact with the inner surface 17b and the base portion 19 of the lid 17 in a compressed state, and seals the periphery of the insertion hole 17c.
バスバー１５は、極柱部２０が挿通される挿通孔１５ａを有する。挿通孔１５ａは、極柱部２０を嵌挿可能な内径である。バスバー１５は、極柱部２０が挿通孔１５ａに挿通された状態で、かつナット２９の端面２９ｂに当接された状態で、電極端子１２と接合されている。ナット２９の端面２９ｂは、ナット２９を極柱部２０のねじ部２１に螺合した際に絶縁部材２５のフランジ部２７に当接するナット２９の端面２９ａとは反対側に位置する面である。この実施形態において電極端子１２とバスバー１５は、当接部としてのかしめ部３０によって接合されている。かしめ部３０は、バスバー１５の挿通孔１５ａから突出した極柱部２０の先端部２０ａの外径が挿通孔１５ａの内径よりも大きくかつ先端部２０ａがバスバー１５に当接するまで先端部２０ａを塑性変形させている。バスバー１５が接合された状態では、バスバー１５と蓋１７の外面１７ａとの間にナット２９が位置している。つまり、ケース１４（蓋１７）、ナット２９、バスバー１５の順に並びかつナット２９とバスバー１５が互いに当接した状態で、電極端子１２とバスバー１５とが接合される。 The bus bar 15 has an insertion hole 15a through which the pole column portion 20 is inserted. The insertion hole 15a has an inner diameter into which the pole column portion 20 can be inserted. The bus bar 15 is joined to the electrode terminal 12 in a state where the pole column portion 20 is inserted into the insertion hole 15 a and is in contact with the end surface 29 b of the nut 29. The end surface 29 b of the nut 29 is a surface located on the opposite side to the end surface 29 a of the nut 29 that abuts on the flange portion 27 of the insulating member 25 when the nut 29 is screwed to the screw portion 21 of the pole column portion 20. In this embodiment, the electrode terminal 12 and the bus bar 15 are joined by a caulking portion 30 as a contact portion. The caulking portion 30 is plastic in the distal end portion 20a until the outer diameter of the distal end portion 20a of the pole column portion 20 protruding from the insertion hole 15a of the bus bar 15 is larger than the inner diameter of the insertion hole 15a and the distal end portion 20a contacts the bus bar 15. It is deformed. In a state where the bus bar 15 is joined, the nut 29 is located between the bus bar 15 and the outer surface 17a of the lid 17. That is, the electrode terminal 12 and the bus bar 15 are joined in a state where the case 14 (lid 17), the nut 29, and the bus bar 15 are arranged in this order and the nut 29 and the bus bar 15 are in contact with each other.
以下、蓄電モジュール１０の作用を説明する。
二次電池１１の電極端子１２，１３をバスバー１５に、かしめ部３０によって接合する場合は、極柱部２０の先端部２０ａを塑性変形させることによって先端部２０ａがバスバー１５の表面に食い込む。これにより、電極端子１２，１３の表面やバスバー１５の表面を覆っていた酸化被膜が破られる。また、極柱部２０の先端部２０ａを塑性変形させた場合には、極柱部２０が膨出してバスバー１５の挿通孔１５ａの内周にも食い込むことにより、電極端子１２，１３の表面やバスバー１５の表面を覆っていた酸化被膜が破られる。酸化被膜が破られることにより、電極端子１２，１３やバスバー１５の新生面同士が接触する。
Hereinafter, the operation of the power storage module 10 will be described.
When the electrode terminals 12 and 13 of the secondary battery 11 are joined to the bus bar 15 by the caulking portion 30, the distal end portion 20 a bites into the surface of the bus bar 15 by plastic deformation of the distal end portion 20 a of the pole column portion 20. As a result, the oxide film covering the surfaces of the electrode terminals 12 and 13 and the surface of the bus bar 15 is broken. When the tip 20a of the pole column 20 is plastically deformed, the pole column 20 bulges and bites into the inner periphery of the insertion hole 15a of the bus bar 15, so that the surface of the electrode terminals 12, 13 The oxide film covering the surface of the bus bar 15 is broken. When the oxide film is broken, the new surfaces of the electrode terminals 12 and 13 and the bus bar 15 come into contact with each other.
また、ナット２９とバスバー１５を当接させた状態で電極端子１２，１３とバスバー１５を接合することにより、ナット２９はバスバー１５と蓋１７に挟まれた状態となる。このため、ナット２９は、バスバー１５と蓋１７との間で狭圧される。 Further, the nut 29 is sandwiched between the bus bar 15 and the lid 17 by joining the electrode terminals 12 and 13 and the bus bar 15 with the nut 29 and the bus bar 15 in contact with each other. For this reason, the nut 29 is compressed between the bus bar 15 and the lid 17.
したがって、本実施形態によれば、以下に示す効果を得ることができる。
（１）バスバー１５と電極端子１２，１３をかしめ部３０によって接合することにより、良好な導電経路を得ることができる。
Therefore, according to the present embodiment, the following effects can be obtained.
(1) A good conductive path can be obtained by joining the bus bar 15 and the electrode terminals 12 and 13 by the caulking portion 30.
（２）極柱部２０の先端部２０ａを塑性変形させることにより、電極端子１２，１３とバスバー１５の挿通孔１５ａとの間にも導電経路を得ることができ、導電性をさらに向上させることができる。 (2) By plastically deforming the tip 20a of the pole column 20, a conductive path can be obtained between the electrode terminals 12 and 13 and the insertion hole 15a of the bus bar 15, and the conductivity is further improved. Can do.
（３）かしめ部３０によって接合することにより、接合工程を簡素化することができ、蓄電モジュール１０の製造コストの増加を抑制できる。
（４）ナット２９をバスバー１５と蓋１７とで狭圧することにより、締結の緩みを抑制できる。そして、絶縁部材２５やシール部材２８に経時的な変形（クリープ現象）が生じたとしても、二次電池１１の絶縁性やシール性を確保できる。
(3) By joining with the caulking part 30, the joining process can be simplified, and an increase in the manufacturing cost of the power storage module 10 can be suppressed.
(4) By tightening the nut 29 with the bus bar 15 and the lid 17, loosening of the fastening can be suppressed. Even if the insulating member 25 and the sealing member 28 are deformed with time (creep phenomenon), the insulating property and sealing property of the secondary battery 11 can be ensured.
（５）バスバー１５の挿通孔１５ａに極柱部２０を挿通させるので、電極端子１２，１３に対してバスバー１５の位置決めを簡便に行うことができ、容易に塑性変形させることができる。 (5) Since the pole column portion 20 is inserted into the insertion hole 15a of the bus bar 15, the bus bar 15 can be easily positioned with respect to the electrode terminals 12 and 13, and can be easily plastically deformed.
（第２の実施形態）
以下、蓄電モジュールを具体化した第２の実施形態を図３にしたがって説明する。なお、以下に説明する実施形態において既に説明した実施形態と同一構成については、同一符号を付すなどして、その重複する説明を省略又は簡略する。
(Second Embodiment)
Hereinafter, a second embodiment in which the power storage module is embodied will be described with reference to FIG. Note that, in the embodiment described below, the same components as those already described in the embodiment are denoted by the same reference numerals, and redundant description thereof is omitted or simplified.
図３に示すように、この実施形態におけるナット３１は、大径部３１ａと小径部３１ｂを有する。大径部３１ａと小径部３１ｂは、段差面３２を介して繋がっている。また、この実施形態におけるバスバー３３は、ナット３１の小径部３１ｂを嵌挿可能な内径の挿通孔３３ａを有する。 As shown in FIG. 3, the nut 31 in this embodiment has a large diameter portion 31a and a small diameter portion 31b. The large diameter portion 31 a and the small diameter portion 31 b are connected via a step surface 32. Further, the bus bar 33 in this embodiment has an insertion hole 33a having an inner diameter into which the small diameter portion 31b of the nut 31 can be inserted.
この実施形態において電極端子１２とバスバー３３は、かしめ部３４と溶接部３５によって接合されている。かしめ部３４は、電極端子１２の極柱部２０にナット３１を螺合させ、ナット３１から突出した極柱部２０の先端部２０ａを塑性変形させてナット３１に当接させている。一方、溶接部３５は、極柱部２０に螺合されたナット３１の小径部３１ｂにバスバー３３を挿通させ、その状態でナット３１とバスバー３３を溶接することによって構成される。バスバー３３は、ナット３１の段差面３２に当接された状態で溶接される。バスバー３３が接合された状態では、バスバー３３と蓋１７の外面１７ａとの間にナット３１が位置している。電極端子１２は、バスバー３３と接合されたナット３１に接合されることにより、バスバー３３と接合される。 In this embodiment, the electrode terminal 12 and the bus bar 33 are joined by a caulking portion 34 and a welding portion 35. The caulking portion 34 has a nut 31 screwed into the pole column portion 20 of the electrode terminal 12, and the tip end portion 20 a of the pole column portion 20 protruding from the nut 31 is plastically deformed and brought into contact with the nut 31. On the other hand, the welded portion 35 is configured by inserting the bus bar 33 through the small diameter portion 31 b of the nut 31 screwed into the pole column portion 20 and welding the nut 31 and the bus bar 33 in this state. The bus bar 33 is welded while being in contact with the stepped surface 32 of the nut 31. In a state where the bus bar 33 is joined, the nut 31 is located between the bus bar 33 and the outer surface 17a of the lid 17. The electrode terminal 12 is joined to the bus bar 33 by joining to the nut 31 joined to the bus bar 33.
以下、蓄電モジュール１０の作用を説明する。
ナット３１とバスバー３３を溶接接合することにより、ナット３１の表面やバスバー３３の表面を覆っていた酸化被膜が破られる。
Hereinafter, the operation of the power storage module 10 will be described.
By welding and joining the nut 31 and the bus bar 33, the oxide film covering the surface of the nut 31 and the surface of the bus bar 33 is broken.
また、ナット３１の段差面３２とバスバー３３を当接させた状態で電極端子１２，１３とバスバー３３を接合することにより、ナット３１はバスバー３３と蓋１７に挟まれた状態となる。このため、ナット３１は、バスバー３３と蓋１７との間で狭圧される。 In addition, the nut 31 is sandwiched between the bus bar 33 and the lid 17 by joining the electrode terminals 12 and 13 and the bus bar 33 with the stepped surface 32 of the nut 31 and the bus bar 33 in contact with each other. For this reason, the nut 31 is compressed between the bus bar 33 and the lid 17.
したがって、本実施形態によれば、第１の実施形態の効果（１），（４），（５）と同様の効果に加えて、以下に示す効果を得ることができる。
（６）溶接部３５を加えることで、導電性をさらに向上させることができる。
Therefore, according to this embodiment, in addition to the effects (1), (4), and (5) of the first embodiment, the following effects can be obtained.
(6) By adding the welded portion 35, the conductivity can be further improved.
（７）電極端子１２，１３とナット３１の内周との間にも導電経路を得ることができ、導電性をさらに向上させることができる。
（第３の実施形態）
以下、蓄電モジュールを具体化した第３の実施形態を図４にしたがって説明する。
(7) A conductive path can also be obtained between the electrode terminals 12 and 13 and the inner periphery of the nut 31, and the conductivity can be further improved.
(Third embodiment)
Hereinafter, a third embodiment in which the power storage module is embodied will be described with reference to FIG.
図４に示すように、電極端子１２は円柱状の極柱部３６を備え、この実施形態において極柱部３６は螺刻されていない。また、この実施形態におけるバスバー３７は、電極端子１２の極柱部３６を嵌挿可能な内径の挿通孔３７ａを有する。 As shown in FIG. 4, the electrode terminal 12 includes a cylindrical pole column portion 36, and the pole column portion 36 is not screwed in this embodiment. Moreover, the bus bar 37 in this embodiment has an insertion hole 37a having an inner diameter into which the pole column portion 36 of the electrode terminal 12 can be inserted.
この実施形態においてバスバー３７は、極柱部３６が挿通孔３７ａに挿通された状態で、かつ絶縁部材２５のフランジ部２７に当接された状態で、電極端子１２と接合されている。電極端子１２とバスバー３７は、かしめ部３０によって接合されている。かしめ部３０は、バスバー３７の挿通孔３７ａに電極端子１２の極柱部３６を挿通させ、挿通孔３７ａから突出した極柱部３６の先端部３６ａの外径が挿通孔３７ａの内径よりも大きくかつ先端部３６ａがバスバー３７に当接するまで先端部３６ａを塑性変形させている。この実施形態では、絶縁部材２５とバスバー３７が互いに当接した状態で、電極端子１２とバスバー３７とが接合されている。バスバー３７は、絶縁部材２５のフランジ部２７に当接されている。 In this embodiment, the bus bar 37 is joined to the electrode terminal 12 in a state where the pole column portion 36 is inserted through the insertion hole 37 a and is in contact with the flange portion 27 of the insulating member 25. The electrode terminal 12 and the bus bar 37 are joined by a caulking portion 30. In the caulking portion 30, the pole column portion 36 of the electrode terminal 12 is inserted into the insertion hole 37a of the bus bar 37, and the outer diameter of the tip portion 36a of the pole column portion 36 protruding from the insertion hole 37a is larger than the inner diameter of the insertion hole 37a. And the front-end | tip part 36a is plastically deformed until the front-end | tip part 36a contact | abuts to the bus-bar 37. FIG. In this embodiment, the electrode terminal 12 and the bus bar 37 are joined with the insulating member 25 and the bus bar 37 in contact with each other. The bus bar 37 is in contact with the flange portion 27 of the insulating member 25.
以下、蓄電モジュール１０の作用を説明する。
二次電池１１の電極端子１２，１３をバスバー３７に、かしめ部３０によって接合する場合は、極柱部３６の先端部３６ａを塑性変形させることによって先端部３６ａがバスバー３７の表面に食い込む。これにより、電極端子１２，１３の表面やバスバー３７の表面を覆っていた酸化被膜が破られる。また、極柱部３６の先端部３６ａを塑性変形させた場合には、極柱部３６が膨出してバスバー３７の挿通孔３７ａの内周にも食い込むことにより、電極端子１２，１３の表面やバスバー３７の表面を覆っていた酸化被膜が破られる。酸化被膜が破られることにより、電極端子１２，１３やバスバー１５の新生面同士が接触する。
Hereinafter, the operation of the power storage module 10 will be described.
When the electrode terminals 12 and 13 of the secondary battery 11 are joined to the bus bar 37 by the caulking portion 30, the distal end portion 36 a bites into the surface of the bus bar 37 by plastically deforming the distal end portion 36 a of the pole column portion 36. As a result, the oxide film covering the surfaces of the electrode terminals 12 and 13 and the surface of the bus bar 37 is broken. Further, when the tip portion 36 a of the pole column portion 36 is plastically deformed, the pole column portion 36 bulges and bites into the inner periphery of the insertion hole 37 a of the bus bar 37, so that the surface of the electrode terminals 12, 13 The oxide film covering the surface of the bus bar 37 is broken. When the oxide film is broken, the new surfaces of the electrode terminals 12 and 13 and the bus bar 15 come into contact with each other.
また、絶縁部材２５に当接させた状態で電極端子１２，１３とバスバー３７を接合することにより、絶縁部材２５はバスバー３７と蓋１７に挟まれた状態となる。このため、絶縁部材２５は、バスバー３７と蓋１７との間で狭圧される。 Further, by joining the electrode terminals 12 and 13 and the bus bar 37 while being in contact with the insulating member 25, the insulating member 25 is sandwiched between the bus bar 37 and the lid 17. For this reason, the insulating member 25 is compressed between the bus bar 37 and the lid 17.
したがって、本実施形態によれば、第１の実施形態の効果（１）〜（３），（５）と同様の効果に加えて、以下に示す効果を得ることができる。
（８）簡単な構成で電極端子１２，１３をケース１４に固定することができる。つまり、第１，第２の実施形態におけるナット２９，３１を用いずに電極端子１２，１３を固定できる。
Therefore, according to this embodiment, in addition to the effects (1) to (3) and (5) of the first embodiment, the following effects can be obtained.
(8) The electrode terminals 12 and 13 can be fixed to the case 14 with a simple configuration. That is, the electrode terminals 12 and 13 can be fixed without using the nuts 29 and 31 in the first and second embodiments.
（９）また、バスバー３７によって絶縁部材２５をケースとの間で狭圧し、絶縁部材２５に経時的な変形が生じたとしても絶縁性を確保できる。
（第４の実施形態）
以下、蓄電モジュールを具体化した第４の実施形態を図５（ａ），（ｂ）にしたがって説明する。
(9) Even if the insulating member 25 is tightly pressed between the case by the bus bar 37 and the insulating member 25 is deformed with time, the insulating property can be ensured.
(Fourth embodiment)
Hereinafter, a fourth embodiment in which the power storage module is embodied will be described with reference to FIGS.
図５（ａ）に示すように、電極端子１２は円柱状の極柱部４０を備え、極柱部４０の外周の一部にはねじ部４１を有する。また、極柱部４０は、極柱部４０の先端から軸方向に延びる筒部４２を有する。また、バスバー４３は、電極端子１２の極柱部４０を嵌挿可能な内径の挿通孔４３ａを有する。 As shown in FIG. 5A, the electrode terminal 12 includes a cylindrical pole column portion 40, and a screw portion 41 is provided on a part of the outer periphery of the pole column portion 40. Further, the pole column portion 40 includes a cylindrical portion 42 that extends in the axial direction from the tip of the pole column portion 40. Further, the bus bar 43 has an insertion hole 43a having an inner diameter into which the pole column part 40 of the electrode terminal 12 can be inserted.
図５（ｂ）に示すように、この実施形態において電極端子１２とバスバー４３は、当接部としてのかしめ部４４と溶接部４５によって接合されている。かしめ部４４は、バスバー１５の挿通孔１５ａに極柱部４０を挿通させた状態で筒部４２に工具を圧入し、極柱部４０の外周が挿通孔４３ａに当接するまで筒部４２を拡径させるように塑性変形させている。そして、溶接部４５は、前述のように極柱部４０の外周を挿通孔４３ａに当接させた状態で、電極端子１２の外周とバスバー４３の挿通孔１５ａの内周を溶接することによって構成される。バスバー４３が接合された状態では、バスバー４３と蓋１７の外面１７ａとの間にナット２９が位置し、バスバー４３はナット２９に当接した状態で接合されている。 As shown in FIG. 5B, in this embodiment, the electrode terminal 12 and the bus bar 43 are joined by a caulking portion 44 as a contact portion and a welding portion 45. The caulking portion 44 press-fits the tool into the cylindrical portion 42 with the pole column portion 40 inserted into the insertion hole 15a of the bus bar 15, and expands the cylindrical portion 42 until the outer periphery of the pole column portion 40 abuts on the insertion hole 43a. It is plastically deformed to have a diameter. And the welding part 45 is comprised by welding the outer periphery of the electrode terminal 12, and the inner periphery of the insertion hole 15a of the bus-bar 43 in the state which contacted the outer periphery of the pole column part 40 to the insertion hole 43a as mentioned above. Is done. When the bus bar 43 is joined, the nut 29 is positioned between the bus bar 43 and the outer surface 17 a of the lid 17, and the bus bar 43 is joined in contact with the nut 29.
以下、蓄電モジュール１０の作用を説明する。
二次電池１１の電極端子１２，１３をバスバー４３に、かしめ部４４と溶接部４５によって接合する場合は、電極端子１２，１３の表面やバスバー４３の表面を覆っていた酸化被膜が破られる。酸化被膜が破られることにより、電極端子１２，１３やバスバー４３の新生面同士が接触する。
Hereinafter, the operation of the power storage module 10 will be described.
When the electrode terminals 12 and 13 of the secondary battery 11 are joined to the bus bar 43 by the caulking portion 44 and the welding portion 45, the oxide film covering the surface of the electrode terminals 12 and 13 and the surface of the bus bar 43 is broken. When the oxide film is broken, the new surfaces of the electrode terminals 12 and 13 and the bus bar 43 come into contact with each other.
また、ナット２９とバスバー４３を当接させた状態で電極端子１２，１３とバスバー４３を接合することにより、ナット２９はバスバー４３と蓋１７に挟まれた状態となる。このため、ナット２９は、バスバー４３と蓋１７との間で狭圧される。 Further, the nut 29 is sandwiched between the bus bar 43 and the lid 17 by joining the electrode terminals 12 and 13 and the bus bar 43 with the nut 29 and the bus bar 43 in contact with each other. For this reason, the nut 29 is compressed between the bus bar 43 and the lid 17.
したがって、本実施形態によれば、第１の実施形態の効果（１），（４），（５）と同様の効果に加えて、以下に示す効果を得ることができる。
（１０）かしめ部４４と溶接部４５によって電極端子１２，１３とバスバー４３を接合することで、導電性を向上させることができる。
Therefore, according to this embodiment, in addition to the effects (1), (4), and (5) of the first embodiment, the following effects can be obtained.
(10) The electrical conductivity can be improved by joining the electrode terminals 12 and 13 and the bus bar 43 by the caulking portion 44 and the welding portion 45.
なお、上記実施形態は以下のように変更してもよい。
○ 絶縁部材２５やシール部材２８の形状を変更しても良い。例えば、円環状でも良いし、円環以外の環状でも良い。また、シール部材２８は、環状のガスケットでも良い。
In addition, you may change the said embodiment as follows.
The shape of the insulating member 25 and the sealing member 28 may be changed. For example, an annular shape or an annular shape other than an annular shape may be used. The seal member 28 may be an annular gasket.
○ 実施形態の電極端子１２，１３とバスバー１５，３３，３７の接合構造は、正極端子と負極端子の両端子に適用しても良いし、何れか一方の端子に適用しても良い。
○ 電極組立体１８は、シート状の電極を積層した構造に限らず、帯状の正極電極と負極電極との間に帯状のセパレータを介在させて、これらを捲回軸周りに渦捲き状に捲回して構成された捲回型としてもよい。
The joining structure of the electrode terminals 12 and 13 and the bus bars 15, 33, and 37 in the embodiment may be applied to both the positive terminal and the negative terminal, or may be applied to either one of the terminals.
The electrode assembly 18 is not limited to a structure in which sheet-like electrodes are laminated, and a belt-like separator is interposed between the belt-like positive electrode and the negative electrode so that they are swirled around a winding axis. It is good also as a wound type comprised by turning.
○ ケース１４の形状は、円柱状や、楕円柱状でも良い。
○ 電極端子１２，１３は、ケース本体１６を構成する側壁から、当該側壁に設けた挿通孔を通じて外部に露出されても良い。
○ The shape of the case 14 may be cylindrical or elliptical.
The electrode terminals 12 and 13 may be exposed to the outside from the side wall constituting the case body 16 through the insertion hole provided in the side wall.
○ 蓄電モジュール１０は、単一の二次電池１１によって構成しても良い。
○ 二次電池１１は、リチウムイオン二次電池に限らず、他の二次電池であっても良い。要は、正極活物質層と負極活物質層との間をイオンが移動するとともに電荷の授受を行うものであれば良い。また、蓄電装置としてキャパシタでも良い。
The power storage module 10 may be composed of a single secondary battery 11.
The secondary battery 11 is not limited to a lithium ion secondary battery, and may be another secondary battery. In short, any ion may be used as long as ions move between the positive electrode active material layer and the negative electrode active material layer and transfer charge. Further, a capacitor may be used as the power storage device.
○ 実施形態の蓄電モジュール１０は、車両電源装置として自動車に搭載しても良いし、産業用車両に搭載しても良い。また、定置用の蓄電モジュールに適用しても良い。
○ 第１，第２の実施形態において極柱部２０に螺合するナット２９，３１は、単数でも、複数でも良い。
(Circle) the electrical storage module 10 of embodiment may be mounted in a motor vehicle as a vehicle power supply device, and may be mounted in an industrial vehicle. Moreover, you may apply to the electrical storage module for stationary.
○ In the first and second embodiments, the nuts 29 and 31 screwed into the pole column 20 may be singular or plural.
○ 第１，第２の実施形態においてナット２９，３１とバスバー１５，３３の間に隙間をあけても良い。この場合、絶縁部材２５は、ナット２９，３１の締結により、蓋１７とナット２９，３１との間で挟圧される。 In the first and second embodiments, a gap may be provided between the nuts 29 and 31 and the bus bars 15 and 33. In this case, the insulating member 25 is clamped between the lid 17 and the nuts 29 and 31 by fastening the nuts 29 and 31.
○ 第１，第３の実施形態において、電極端子１２，１３とバスバー１５，３７はかしめ接合に加えて、溶接接合しても良い。
○ 第２の実施形態のバスバー３３とナット３１を一体的に成形した部材をバスバーとしても良い。つまり、バスバーにナットとしての機能を持たせ、そのバスバーを電極端子１２，１３に締結しても良い。この場合、バスバーは、絶縁部材２５に当接された状態で電極端子１２，１３がかしめられることによって接合される。また、この場合において電極端子１２，１３とバスバーは、かしめ接合に加えて、溶接接合しても良い。
In the first and third embodiments, the electrode terminals 12 and 13 and the bus bars 15 and 37 may be welded in addition to caulking.
A member obtained by integrally molding the bus bar 33 and the nut 31 of the second embodiment may be used as a bus bar. That is, the bus bar may have a function as a nut, and the bus bar may be fastened to the electrode terminals 12 and 13. In this case, the bus bars are joined together by caulking the electrode terminals 12 and 13 while being in contact with the insulating member 25. In this case, the electrode terminals 12 and 13 and the bus bar may be joined by welding in addition to caulking.
次に、上記実施形態及び別例から把握できる技術的思想を追記する。
（イ）ケースと、ケース内に収容された電極組立体と、ケースの挿通孔を通ってケースの外部に露出されるとともに電極組立体に電気的に接続された電極端子と、を有する蓄電装置において、電極端子を塑性変形によって当接させた当接部を有し、当接部によって電極端子とバスバーとが接合されている蓄電装置。
Next, a technical idea that can be grasped from the embodiment and another example will be added.
(B) A power storage device having a case, an electrode assembly housed in the case, and an electrode terminal exposed to the outside of the case through the insertion hole of the case and electrically connected to the electrode assembly The power storage device according to claim 1, comprising a contact portion where the electrode terminal is contacted by plastic deformation, wherein the electrode terminal and the bus bar are joined by the contact portion.
１０…蓄電モジュール、１１…二次電池、１２，１３…電極端子、１４…ケース、１５，３３，３７，４３…バスバー、１５ａ，３３ａ，３７ａ，４３ａ…挿通孔、１８…電極組立体、１７…蓋、１７ａ…外面、１７ｃ…挿通孔、２５…絶縁部材、２７…フランジ部、３０，３４，４４…かしめ部、３５，４５…溶接部。 DESCRIPTION OF SYMBOLS 10 ... Power storage module, 11 ... Secondary battery, 12, 13 ... Electrode terminal, 14 ... Case, 15, 33, 37, 43 ... Bus bar, 15a, 33a, 37a, 43a ... Insertion hole, 18 ... Electrode assembly, 17 ... lid, 17a ... outer surface, 17c ... insertion hole, 25 ... insulating member, 27 ... flange part, 30, 34, 44 ... caulking part, 35, 45 ... welded part.
Claims (4)
前記電極端子を塑性変形によって当接させた当接部を有し、
前記当接部によって前記電極端子と前記バスバーとが接合されていることを特徴とする蓄電モジュール。 An electricity storage comprising: a case; an electrode assembly housed in the case; and an electrode terminal exposed to the outside of the case through an insertion hole of the case and electrically connected to the electrode assembly In a power storage module comprising a device and electrically connecting electrode terminals of the power storage device with a bus bar,
Having a contact portion where the electrode terminal is contacted by plastic deformation;
The power storage module, wherein the electrode terminal and the bus bar are joined by the contact portion.
前記電極端子の外周と前記バスバーの挿通孔の内周とが当接している請求項１又は請求項２に記載の蓄電モジュール。 The bus bar has an insertion hole through which the electrode terminal is inserted,
The power storage module according to claim 1 or 2, wherein an outer periphery of the electrode terminal is in contact with an inner periphery of the insertion hole of the bus bar.
前記絶縁部材は、前記ケースと前記電極端子の間に位置し、
前記絶縁部材と前記バスバーが互いに当接した状態で、前記電極端子と前記バスバーとが接合されている請求項１〜請求項３のうち何れか一項に記載の蓄電モジュール。 An insulating member for insulating the case and the electrode terminal;
The insulating member is located between the case and the electrode terminal;
The power storage module according to any one of claims 1 to 3, wherein the electrode terminal and the bus bar are joined in a state where the insulating member and the bus bar are in contact with each other.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016197534A (en) * | 2015-04-03 | 2016-11-24 | 株式会社豊田自動織機 | Power storage device and power storage module |
| JP2018037221A (en) * | 2016-08-30 | 2018-03-08 | 株式会社豊田自動織機 | Terminal attachment structure of battery pack |
| CN109638214A (en) * | 2019-01-31 | 2019-04-16 | 广州小鹏汽车科技有限公司 | A kind of connection structure and battery modules of battery electrode column and busbar connector |
| KR102242274B1 (en) * | 2020-07-27 | 2021-04-20 | 주식회사 유로셀 | Prismatic cell having current collector connecting structure and method for manufacturing the same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11283610A (en) * | 1998-03-31 | 1999-10-15 | Sanyo Electric Co Ltd | Storage battery and pole therefor |
| JP2000149910A (en) * | 1998-11-04 | 2000-05-30 | Ngk Insulators Ltd | Lithium secondary battery |
| JP2010033766A (en) * | 2008-07-25 | 2010-02-12 | Toyota Motor Corp | Battery, vehicle, battery-loaded apparatus, and manufacturing method of battery |
| JP2010205535A (en) * | 2009-03-03 | 2010-09-16 | Toyota Motor Corp | Battery and battery pack |
| JP2011060623A (en) * | 2009-09-11 | 2011-03-24 | Sanyo Electric Co Ltd | Battery pack |
| JP2011159445A (en) * | 2010-01-29 | 2011-08-18 | Toshiba Corp | Battery device and inter-terminal connection method of the same |
| WO2011117971A1 (en) * | 2010-03-23 | 2011-09-29 | トヨタ自動車株式会社 | Method for producing battery, and battery |
| JP2014143154A (en) * | 2013-01-25 | 2014-08-07 | Toyota Industries Corp | Power storage module |
-
2013
- 2013-01-25 JP JP2013012412A patent/JP6142547B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11283610A (en) * | 1998-03-31 | 1999-10-15 | Sanyo Electric Co Ltd | Storage battery and pole therefor |
| JP2000149910A (en) * | 1998-11-04 | 2000-05-30 | Ngk Insulators Ltd | Lithium secondary battery |
| JP2010033766A (en) * | 2008-07-25 | 2010-02-12 | Toyota Motor Corp | Battery, vehicle, battery-loaded apparatus, and manufacturing method of battery |
| JP2010205535A (en) * | 2009-03-03 | 2010-09-16 | Toyota Motor Corp | Battery and battery pack |
| JP2011060623A (en) * | 2009-09-11 | 2011-03-24 | Sanyo Electric Co Ltd | Battery pack |
| JP2011159445A (en) * | 2010-01-29 | 2011-08-18 | Toshiba Corp | Battery device and inter-terminal connection method of the same |
| WO2011117971A1 (en) * | 2010-03-23 | 2011-09-29 | トヨタ自動車株式会社 | Method for producing battery, and battery |
| JP2014143154A (en) * | 2013-01-25 | 2014-08-07 | Toyota Industries Corp | Power storage module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016197534A (en) * | 2015-04-03 | 2016-11-24 | 株式会社豊田自動織機 | Power storage device and power storage module |
| JP2018037221A (en) * | 2016-08-30 | 2018-03-08 | 株式会社豊田自動織機 | Terminal attachment structure of battery pack |
| CN109638214A (en) * | 2019-01-31 | 2019-04-16 | 广州小鹏汽车科技有限公司 | A kind of connection structure and battery modules of battery electrode column and busbar connector |
| KR102242274B1 (en) * | 2020-07-27 | 2021-04-20 | 주식회사 유로셀 | Prismatic cell having current collector connecting structure and method for manufacturing the same |
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|---|---|
| JP6142547B2 (en) | 2017-06-07 |
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