JP5535465B2 - 非水電解液二次電池 - Google Patents
非水電解液二次電池 Download PDFInfo
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- JP5535465B2 JP5535465B2 JP2008276390A JP2008276390A JP5535465B2 JP 5535465 B2 JP5535465 B2 JP 5535465B2 JP 2008276390 A JP2008276390 A JP 2008276390A JP 2008276390 A JP2008276390 A JP 2008276390A JP 5535465 B2 JP5535465 B2 JP 5535465B2
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- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 21
- 239000000203 mixture Substances 0.000 claims description 41
- 239000004743 Polypropylene Substances 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 238000004804 winding Methods 0.000 description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011883 electrode binding agent Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
コバルト酸リチウムを94質量部と、PVdFを3質量部と、導電性カーボン3質量部を混合して、正極材料とした。この正極材料をN−メチル−2−ピロリドンに分散させてスラリー状とした。得られたスラリーを厚さ15μmのアルミ箔上に塗布し、乾燥後、厚さ160μmの正極体を得た。
正極体及び負極体に貼付した絶縁テープの大きさを10×10mmとした以外は実施例1と同様にして、非水電解液二次電池を作製した。なお絶縁テープの集電体幅方向のサイズは、集電体幅から電極タブ接続部を除いた幅の0.3倍であり、絶縁テープの厚みは電極タブの厚みの0.7倍であった。
正極体及び負極体に貼付した絶縁テープの大きさを10×10mmとし、正極体及び負極体に貼付した絶縁テープの厚みを20μmとした以外は実施例1と同様にして、非水電解液二次電池を作製した。なお絶縁テープの集電体幅方向のサイズは、集電体幅から電極タブ接続部を除いた幅の0.3倍であり、絶縁テープの厚みは電極タブの厚みの0.3倍であった。
正極体及び負極体に貼付した絶縁テープの大きさを10×30mmとし、正極体及び負極体に貼付した絶縁テープの厚みを70μmとした以外は実施例1と同様にして、非水電解液二次電池を作製した。なお絶縁テープの集電体幅方向のサイズは、集電体幅から電極タブ接続部を除いた幅の0.9倍であり、絶縁テープの厚みは電極タブの厚みの1.0倍であった。
正極体及び負極体に絶縁テープを貼付しない以外は実施例1と同様にして、非水電解液二次電池を作製した。
2 電極合剤層片面塗布部
3 絶縁テープ
4 電極合剤層両面塗布部
5 電極タブ
5a 電極タブ引き出し部
5b 電極タブ接続部
6 集電体
7 反り
8 電極合剤層
C 電極挿入方向
Claims (1)
- 集電体の両面に電極合剤層が形成され、前記集電体の長さ方向の一方の端部に電極合剤層の未塗布部を有し、前記未塗布部の集電体幅方向の上部に電極タブが溶接され引き出され、前記未塗布部のうち、集電体幅方向に関し前記未塗布部の下端から前記電極タブの下端までの下部領域にのみポリプロピレン絶縁テープを貼付した正極と負極を、セパレータを介して巻回し外装体に収納してなる非水電解液二次電池であって、
前記ポリプロピレン絶縁テープの集電体幅方向のサイズは、集電体幅から電極タブ接続部を除いた幅の0.3倍以上、1.0倍以下であり、
前記ポリプロピレン絶縁テープの厚みは、前記電極タブの厚みの0.3倍以上、1.0倍以下であることを特徴とする非水電解液二次電池。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008276390A JP5535465B2 (ja) | 2008-10-28 | 2008-10-28 | 非水電解液二次電池 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2008276390A JP5535465B2 (ja) | 2008-10-28 | 2008-10-28 | 非水電解液二次電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010108608A JP2010108608A (ja) | 2010-05-13 |
JP5535465B2 true JP5535465B2 (ja) | 2014-07-02 |
Family
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008276390A Expired - Fee Related JP5535465B2 (ja) | 2008-10-28 | 2008-10-28 | 非水電解液二次電池 |
Country Status (1)
Country | Link |
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JP (1) | JP5535465B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109888164A (zh) * | 2019-04-16 | 2019-06-14 | 珠海冠宇电池有限公司 | 一种带有绝缘层的电池极耳 |
CN111293315A (zh) * | 2020-02-25 | 2020-06-16 | 东莞塔菲尔新能源科技有限公司 | 一种防止极耳倒插降低电芯失效的方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5333342B2 (ja) | 2009-06-29 | 2013-11-06 | 株式会社デンソー | 半導体装置 |
JP6222742B2 (ja) * | 2012-05-25 | 2017-11-01 | Necエナジーデバイス株式会社 | 非水電解液電池用正極電極および非水電解液二次電池 |
WO2021049376A1 (ja) * | 2019-09-13 | 2021-03-18 | 株式会社村田製作所 | 電池、電子機器および電動工具 |
KR20210088257A (ko) * | 2020-01-06 | 2021-07-14 | 주식회사 엘지에너지솔루션 | 테이핑 영역을 포함하는 전극 집전체용 금속 박막 및 이를 이용한 전극 제조방법 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4069988B2 (ja) * | 1996-08-30 | 2008-04-02 | 日立マクセル株式会社 | リチウムイオン二次電池 |
JP2954147B1 (ja) * | 1998-03-20 | 1999-09-27 | 日本電気株式会社 | 防爆型二次電池 |
JP2003086234A (ja) * | 2001-09-13 | 2003-03-20 | Mitsubishi Electric Corp | 電 池 |
JP4443260B2 (ja) * | 2004-02-27 | 2010-03-31 | 三洋電機株式会社 | ラミネート電池 |
JP2006302509A (ja) * | 2005-04-15 | 2006-11-02 | Sanyo Electric Co Ltd | 電池 |
JP2008027831A (ja) * | 2006-07-25 | 2008-02-07 | Matsushita Electric Ind Co Ltd | 電池 |
-
2008
- 2008-10-28 JP JP2008276390A patent/JP5535465B2/ja not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109888164A (zh) * | 2019-04-16 | 2019-06-14 | 珠海冠宇电池有限公司 | 一种带有绝缘层的电池极耳 |
CN111293315A (zh) * | 2020-02-25 | 2020-06-16 | 东莞塔菲尔新能源科技有限公司 | 一种防止极耳倒插降低电芯失效的方法 |
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Publication number | Publication date |
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JP2010108608A (ja) | 2010-05-13 |
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