JPWO2017110548A1 - 蓄電装置 - Google Patents
蓄電装置 Download PDFInfo
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- 238000003860 storage Methods 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 description 26
- 230000037431 insertion Effects 0.000 description 26
- 238000009413 insulation Methods 0.000 description 10
- 210000000078 claw Anatomy 0.000 description 8
- 238000000605 extraction Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000011888 foil Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000011149 active material Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 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
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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Abstract
Description
本発明の目的は、電極組立体への局所的な接触を抑制できる蓄電装置を提供することにある。
図1又は図3に示すように、蓄電装置としての二次電池10はケース11を備え、ケース11には電極組立体12が収容されている。ケース11は、四角箱状のケース部材14と、このケース部材14の開口部14aを閉塞する矩形平板状の壁部としての蓋部材15とを有している。なお、本実施形態の二次電池10はリチウムイオン電池である。
図4に示すように、絶縁カバー90は、対向方向Zにおいて正極導電部材51及び負極導電部材52と蓋部材15との間に介在する導電部材絶縁部91を備える。また、絶縁カバー90は、電流遮断機構80を含めた負極引出端子61と、電極組立体12のタブ側端面12bとを絶縁する機構絶縁部93と、正極引出端子60と電極組立体12のタブ側端面12bとを絶縁する端子絶縁部92とを備える。そして、絶縁カバー90は長手方向に沿う側面視略U字状である。
ここで、図2に示すように、端子絶縁部92の外面92dからリブ92gの先端面に至るまでの寸法を高さH1とし、機構絶縁部93の外面93dからリブ93gの先端面に至るまでの寸法を高さH2とする。端子絶縁部92のリブ92gの高さH1は、機構絶縁部93のリブ93gの高さH2より高い。
なお、負極の負極引出端子61の端子端面63bには接点板81が接合され、接点板81、絶縁リング82、シールリング83、及び負極導電部材52(端子接続部52b)がユニット化されているものとする。また、負極導電部材52の端子接続部52bには変形板85が接合されており、負極引出端子61と電流遮断機構80と負極導電部材52が予め一体化されているとする。
上記実施形態によれば、以下のような効果を得ることができる。
○ 絶縁カバー90が導電部材絶縁部91と、端子絶縁部92と、機構絶縁部93とを一体に備える構成であったが、導電部材絶縁部91と、端子絶縁部92と、機構絶縁部93とを別体としてもよい。
○ 絶縁カバー90において、電流遮断機構80の変形板85に接触しないように機構絶縁部93を対向方向Zに沿って離間させれば、逃がし凹部93fは無くてもよい。
○ 電極端子は、正極引出端子60や負極引出端子61のように、外部接続端子66と端子接続部材44を介して接続されるものでなくてもよく、正極導電部材51や負極導電部材52に直接接続されたものでもよい。
○ 正極電極21及び負極電極31は、金属箔の片面に活物質層が存在する構造でもよい。
(1)異なる極性の電極が互いに絶縁されて積層された状態の電極組立体と、前記電極から突出した形状のタブが積層され、前記電極組立体の端面から突出した各極性のタブ群と、前記電極組立体及び前記タブ群を収容したケースと、前記ケースの壁部の外側に配置された外部接続端子と、前記電極組立体の端面と前記壁部との間に配置され、前記タブ群と電気的に接続された導電部材と、前記タブ群の並設方向において該タブ群よりも外側で前記導電部材に接続され、前記壁部から外部に突出した状態の引出端子と、前記壁部の外側に配置され、かつ前記引出端子と前記外部接続端子とを接続した端子接続部材と、一対の前記導電部材と前記壁部との間に介在する絶縁カバーと、を備える蓄電装置であって、前記壁部における前記外部接続端子と重なる部分に、前記外部接続端子の係合凸部を回り止めする係止凹部を前記絶縁カバーに向けて突出して備え、前記絶縁カバーは、前記係止凹部によって前記壁部から突出した部分を収容する収容凹部を備えることを特徴とする蓄電装置。
Claims (4)
- 異なる極性の電極が互いに絶縁されて積層された状態の電極組立体と、
前記電極組立体を収容したケースと、
同じ極性の前記電極と電気的にそれぞれ接続され、前記ケースの壁部に固定された第1及び第2の電極端子と、
前記第1の電極端子と電気的に接続される電流遮断機構と、を備える蓄電装置であって、
前記電流遮断機構は、前記ケースの内部圧力が設定圧力に達すると、前記電極端子と前記電極組立体との間の電気的な通電経路の電流を遮断する構造を有し、
前記電流遮断機構を含めた前記第1の電極端子と前記電極組立体の前記端面とを絶縁する機構絶縁部と、
前記第2の電極端子と前記電極組立体の前記端面とを絶縁する端子絶縁部と、を備え、
前記壁部から前記第1の電極端子を含む前記機構絶縁部までの突出寸法と、
前記壁部から前記第2の電極端子を含む前記端子絶縁部までの突出寸法とが同じである蓄電装置。 - 同じ極性の前記電極と前記電極端子とを接続し、前記壁部と前記端面との間に配置された一対の導電部材を備えるとともに、一対の前記導電部材と前記壁部とを絶縁する導電部材絶縁部を備え、前記端子絶縁部及び前記機構絶縁部は、前記導電部材絶縁部と一体である、請求項1に記載の蓄電装置。
- 前記電流遮断機構は、一面に前記ケースの内部圧力が作用し、他面に前記ケースの外部圧力が作用する変形板を備え、かつ前記第1の電極端子と前記電極組立体との電気的な通電経路の一部を構成するとともに、前記電極組立体の端面と前記第1の電極端子との間に配置されている、請求項1又は請求項2に記載の蓄電装置。
- 前記蓄電装置は二次電池である、請求項1〜3の何れか一項に記載の蓄電装置。
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JP2015251819 | 2015-12-24 | ||
JP2015251819 | 2015-12-24 | ||
PCT/JP2016/086875 WO2017110548A1 (ja) | 2015-12-24 | 2016-12-12 | 蓄電装置 |
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KR (1) | KR102053560B1 (ja) |
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JP6597290B2 (ja) * | 2015-12-24 | 2019-10-30 | 株式会社豊田自動織機 | 蓄電装置 |
JP6597292B2 (ja) * | 2015-12-24 | 2019-10-30 | 株式会社豊田自動織機 | 蓄電装置 |
CN114899557A (zh) * | 2017-01-25 | 2022-08-12 | 三洋电机株式会社 | 二次电池 |
WO2019116914A1 (ja) * | 2017-12-12 | 2019-06-20 | 株式会社Gsユアサ | 蓄電素子 |
JP7052363B2 (ja) * | 2018-01-17 | 2022-04-12 | 三洋電機株式会社 | 二次電池 |
JP7001957B2 (ja) * | 2018-03-02 | 2022-01-20 | トヨタ自動車株式会社 | 電池の製造方法および電池 |
CN111106304B9 (zh) * | 2018-10-30 | 2021-06-11 | 宁德时代新能源科技股份有限公司 | 二次电池 |
JP7577122B2 (ja) | 2020-09-30 | 2024-11-01 | 香港時代新能源科技有限公司 | 電池セル、電池、電力消費装置、電池セルの製造方法及びシステム |
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- 2016-12-12 JP JP2017557881A patent/JPWO2017110548A1/ja not_active Withdrawn
- 2016-12-12 DE DE112016006034.3T patent/DE112016006034T5/de not_active Withdrawn
- 2016-12-12 WO PCT/JP2016/086875 patent/WO2017110548A1/ja active Application Filing
- 2016-12-12 US US15/779,603 patent/US10862098B2/en active Active
- 2016-12-12 KR KR1020187015979A patent/KR102053560B1/ko active IP Right Grant
- 2016-12-12 CN CN201680074658.4A patent/CN108370020B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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KR20180081109A (ko) | 2018-07-13 |
US20180351153A1 (en) | 2018-12-06 |
DE112016006034T5 (de) | 2018-10-25 |
KR102053560B1 (ko) | 2019-12-06 |
WO2017110548A1 (ja) | 2017-06-29 |
CN108370020A (zh) | 2018-08-03 |
US10862098B2 (en) | 2020-12-08 |
CN108370020B (zh) | 2021-02-05 |
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