JP5821969B2 - 二次電池の製造方法、及び、二次電池 - Google Patents
二次電池の製造方法、及び、二次電池 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 30
- 238000003466 welding Methods 0.000 claims description 70
- 239000011888 foil Substances 0.000 claims description 67
- 238000013016 damping Methods 0.000 claims description 63
- 229910052751 metal Inorganic materials 0.000 claims description 61
- 239000002184 metal Substances 0.000 claims description 59
- 229910000838 Al alloy Inorganic materials 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 24
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000002003 electrode paste Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H01M50/543—Terminals
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- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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- H01M50/50—Current conducting connections for cells or batteries
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- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
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Description
さらにこの電池の製造方法では、集電箔、集電部材、第1弁体、及び第2弁体は、同一の金属元素を含有する金属材料からなる。加えて、制振性金属は、この同一の金属元素とこれとは異なる異種金属元素との合金を用いている。これにより、集電箔と集電部材の超音波溶接部との間の超音波溶接を容易に行うことができる。また、第1弁体と第2弁体との互いの連結(連結部の構成)も、同一金属元素を含む金属材料同士で良好に行うことができる。このため、超音波溶接や連結部の形成について、信頼性の高い二次電池が得られる。
以下、本発明の実施の形態を、図面を参照しつつ説明する。図1に、本実施形態1に係るリチウムイオン二次電池1(以下、単に電池1ともいう)の斜視図を示す。まず、電池1の構成の概略について説明する。なお、以下では、各図面における上方を電池1の上側UW(上方UW)、下方を電池1の下側DW(下方DW)として説明する。この電池1は、正極板21及び負極板22を有する電極体20と、非水系の電解液30と、これら電極体20及び電解液30を気密に収容してなる角型の電池ケース10と、正極板21に接続して電池ケース10外に延出する正極端子60と、負極板22に接続して電池ケース10外に延出する負極端子70とを有する。
次いで、第2の実施の形態について説明する。本実施形態2に係るハイブリッド自動車(車両)700(以下、単に自動車700とも言う)は、実施形態1に係る電池1を搭載し、この電池1に蓄えた電気エネルギーを、駆動源の駆動エネルギーの全部または一部として使用するものである(図6参照)。
2 電流遮断機構
10 電池ケース
11 ケース本体部材
12 封口蓋
20 電極体
21 正極板(電極板)
22 負極板
21s 正極集電箔(集電箔)
22s 負極集電箔
60 正極端子
60K 構造体
64 正極内部導通部材
64A 第1弁体
64B 正極集電部材(集電部材)
64BS (正極集電部材の)先端部(超音波溶接部)
65 第2弁体
67 封栓
KG 連結部
70 負極端子
71 負極外部端子
74 負極内部導通部材
700 ハイブリッド自動車(車両)
710 組電池
Claims (8)
- 集電箔を含む電極板を有する電極体と、
上記電極板の上記集電箔に自身の超音波溶接部で超音波溶接により接続された集電部材と、
上記集電部材に導通接続された圧力型の電流遮断機構とを、電池ケース内に気密に収容してなり、
上記電流遮断機構は、
上記集電部材と一体にされた第1弁体と第2弁体とが連結部で連結され、
上記第1弁体及び上記第2弁体の少なくともいずれかは、上記電池ケースの内圧の上昇により、互いの結合が破断する方向に移動する構成とされてなり、
前記集電箔、前記集電部材、前記第1弁体、及び前記第2弁体は、いずれも同一の金属元素を含有する金属材料からなり、
上記集電部材、上記第1弁体及び上記第2弁体のうち、少なくとも、上記超音波溶接部と上記連結部との間の一部が、上記金属元素及びこれとは異なる異種金属元素との合金である制振性金属の金属材料からなる
二次電池の製造方法であって、
上記集電部材と一体にされた上記第1弁体と上記第2弁体とを上記連結部で連結した構造体を形成する構造体形成工程と、
上記構造体形成工程の後に、上記電極板の上記集電箔と上記集電部材の上記超音波溶接部とを超音波溶接する超音波溶接工程と、を備える
二次電池の製造方法。 - 請求項1に記載の二次電池の製造方法であって、
前記第1弁体及び前記第2弁体は、同一の前記制振性金属からなり、
前記構造体形成工程は、
上記第1弁体と上記第2弁体とを溶接により結合して前記連結部を構成する溶接工程を含む
二次電池の製造方法。 - 請求項1または請求項2に記載の二次電池の製造方法であって、
前記第1弁体及び前記集電部材は、前記制振性金属の一体材からなる
二次電池の製造方法。 - 集電箔を含む電極板を有する電極体と、
上記電極板の上記集電箔に自身の超音波溶接部で超音波溶接により接続された集電部材と、
上記集電部材に導通接続された圧力型の電流遮断機構とを、電池ケース内に気密に収容してなり、
上記電流遮断機構は、
上記集電部材と一体にされた第1弁体と第2弁体とが連結部で連結され、
上記第1弁体及び上記第2弁体の少なくともいずれかは、上記電池ケースの内圧の上昇により、互いの結合が破断する方向に移動する構成とされてなり、
前記集電箔、前記集電部材、前記第1弁体、及び前記第2弁体は、いずれも同一の金属元素を含有する金属材料からなり、
上記集電部材、上記第1弁体及び上記第2弁体のうち、少なくとも、上記超音波溶接部と上記連結部との間の一部が、上記金属元素及びこれとは異なる異種金属元素との合金である制振性金属の金属材料からなる
二次電池。 - 請求項4に記載の二次電池であって、
前記第1弁体及び前記第2弁体は、同一の前記制振性金属からなり、溶接により結合して前記連結部を構成してなる
二次電池。 - 請求項4または請求項5に記載の二次電池であって、
前記第1弁体及び前記集電部材は、前記制振性金属の一体材からなる
二次電池。 - 請求項6に記載の二次電池であって、
前記集電箔は、アルミニウム箔であり、
前記制振性金属は、制振性鉄−アルミニウム合金である
二次電池。 - 請求項7に記載の二次電池であって、
前記制振性鉄−アルミニウム合金は、アルミニウムを6〜10重量%含有し、残部が鉄及び不可避不純物からなる
二次電池。
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US (1) | US9660247B2 (ja) |
JP (1) | JP5821969B2 (ja) |
KR (1) | KR20140079500A (ja) |
CN (1) | CN103959512A (ja) |
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Families Citing this family (16)
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KR101746913B1 (ko) | 2012-06-28 | 2017-06-14 | 도요타지도샤가부시키가이샤 | 전지의 제조 방법 및 전지 |
WO2015097785A1 (ja) * | 2013-12-25 | 2015-07-02 | 日立オートモティブシステムズ株式会社 | 角形二次電池 |
JP6270511B2 (ja) * | 2014-01-30 | 2018-01-31 | トヨタ自動車株式会社 | 二次電池および二次電池の製造方法 |
JP6304625B2 (ja) * | 2014-04-10 | 2018-04-04 | エリーパワー株式会社 | 超音波処理装置および超音波処理方法 |
CN107112492B (zh) * | 2014-12-26 | 2020-04-24 | 株式会社杰士汤浅国际 | 蓄电元件 |
JP6547486B2 (ja) * | 2015-07-22 | 2019-07-24 | 株式会社豊田自動織機 | 蓄電装置の製造方法 |
JP6365474B2 (ja) * | 2015-09-11 | 2018-08-01 | トヨタ自動車株式会社 | 二次電池の製造方法 |
EP3323161B1 (en) * | 2015-09-30 | 2020-01-15 | BYD Company Limited | Connector for power batteries, power battery module, power battery pack and vehicle |
JP6662652B2 (ja) * | 2016-02-02 | 2020-03-11 | プライムアースEvエナジー株式会社 | 二次電池及び絶縁体の成形方法 |
CN107123769B (zh) * | 2016-02-25 | 2019-09-13 | 比亚迪股份有限公司 | 单体电池、电池模组、电池包及电动汽车 |
US10938017B2 (en) * | 2016-08-01 | 2021-03-02 | Cps Technology Holdings Llc | Overcharge protection assembly for a battery cell |
JP6566265B2 (ja) | 2016-09-09 | 2019-08-28 | トヨタ自動車株式会社 | 密閉型二次電池 |
JP6460417B2 (ja) * | 2016-10-05 | 2019-01-30 | トヨタ自動車株式会社 | 電池の製造方法 |
CN111081916B (zh) * | 2016-12-09 | 2022-11-08 | 宁德时代新能源科技股份有限公司 | 二次电池 |
JP6601685B2 (ja) * | 2016-12-15 | 2019-11-06 | トヨタ自動車株式会社 | 電池および組電池 |
CN208014792U (zh) * | 2018-01-16 | 2018-10-26 | 宁德时代新能源科技股份有限公司 | 连接构件和充电电池 |
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JPH0799048A (ja) * | 1993-09-28 | 1995-04-11 | Mitsubishi Chem Corp | 二次電池用電極構造 |
JP3906519B2 (ja) * | 1997-04-30 | 2007-04-18 | 宇部興産株式会社 | 電池用電極とこれを用いた電池 |
JP3599967B2 (ja) | 1997-09-09 | 2004-12-08 | 松下電器産業株式会社 | 密閉型電池 |
JPH11195412A (ja) * | 1998-01-05 | 1999-07-21 | Mitsubishi Cable Ind Ltd | 密閉型電池用の内部電極端子 |
JP3879220B2 (ja) | 1998-01-19 | 2007-02-07 | 松下電器産業株式会社 | 二次電池用防爆封口装置 |
JP3572404B2 (ja) * | 2002-03-04 | 2004-10-06 | 日産自動車株式会社 | 組電池 |
JP4023213B2 (ja) * | 2002-05-20 | 2007-12-19 | 松下電器産業株式会社 | リチウムイオン二次電池 |
JP2004199938A (ja) * | 2002-12-17 | 2004-07-15 | Toshiba Corp | 非水電解液二次電池 |
JP5084205B2 (ja) | 2006-08-11 | 2012-11-28 | 三洋電機株式会社 | 非水電解質二次電池 |
JP2008098204A (ja) * | 2006-10-05 | 2008-04-24 | Sumitomo Electric Ind Ltd | リアクトル装置 |
JP2008153516A (ja) * | 2006-12-19 | 2008-07-03 | Nec Tokin Corp | 電気二重層キャパシタ |
JP2010067541A (ja) * | 2008-09-12 | 2010-03-25 | Toyota Motor Corp | 蓄電装置、車両及び蓄電素子 |
JP5490406B2 (ja) | 2008-12-27 | 2014-05-14 | 三洋電機株式会社 | 車両用の電源装置 |
JP5430978B2 (ja) | 2009-03-10 | 2014-03-05 | 三洋電機株式会社 | 密閉電池及びその製造方法 |
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DE112011105871B4 (de) | 2020-01-30 |
US9660247B2 (en) | 2017-05-23 |
US20150303441A1 (en) | 2015-10-22 |
KR20140079500A (ko) | 2014-06-26 |
WO2013076831A1 (ja) | 2013-05-30 |
DE112011105871T5 (de) | 2014-08-07 |
JPWO2013076831A1 (ja) | 2015-04-27 |
CN103959512A (zh) | 2014-07-30 |
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