JP2009266750A - 非水電解液電池 - Google Patents
非水電解液電池 Download PDFInfo
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- JP2009266750A JP2009266750A JP2008117816A JP2008117816A JP2009266750A JP 2009266750 A JP2009266750 A JP 2009266750A JP 2008117816 A JP2008117816 A JP 2008117816A JP 2008117816 A JP2008117816 A JP 2008117816A JP 2009266750 A JP2009266750 A JP 2009266750A
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- 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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- 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
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- 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
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Abstract
【解決手段】本発明の非水電解液電池1は、上方開口を有する有底円筒状の外装缶2内に、シート状の正極3とシート状の負極4とをシート状のセパレータ5を介して捲回してなる電極捲回体6が収容される。そして、電極捲回体6の正極3の下端がセパレータ5を変形させて形成したカバー部30により覆われる。電極捲回体6の正極3の捲回終端Eから延びるセパレータ末端部5c・5dの延出寸法は、10mm以上に設定されている。
【選択図】図1
Description
また、特許文献3に記載のように、袋状のセパレータに一方の電極を収容したものを捲回して捲回電極体を作製することは、製造上の困難が伴うものであった。
なお、ここでは、セパレータ5が電極捲回体6の負極4の最外周を全く覆っていない場合や、セパレータ5が負極4の最外周の一部を覆っている場合が含まれる。
2 外装缶
3 正極
4 負極
5 セパレータ
5c・5d セパレータ末端部
6 電極捲回体
24a・25a 負極シートの捲回末端
30 カバー部
E 正極シートの捲回末端
Claims (4)
- 上方開口を有する有底筒状の外装缶内に、シート状の正極とシート状の負極とをシート状のセパレータを介して捲回してなる電極捲回体が収容されている筒形の非水電解液電池であって、
前記電極捲回体の負極の少なくとも一部に、リチウム−アルミニウム合金を含んでおり、
前記電極捲回体の正極の上下両端のうち、少なくとも下端が前記セパレータの下端部を変形させて形成したカバー部により覆われており、
前記外装缶は、前記負極の電位を有するように、前記電極捲回体の最外周において前記負極と接しており、
前記正極の捲回終端から延びる前記セパレータの末端部の延出寸法が、10mm以上に設定されていることを特徴とする非水電解液電池。 - 前記電極捲回体の正極の上下両端が、前記セパレータの上下両端部を変形させて形成したカバー部により覆われている請求項1記載の非水電解液電池。
- 前記セパレータの末端部の延出寸法が、25mm以下である請求項1又は2記載の非水電解液電池。
- 前記正極の上下幅寸法が、前記負極の上下幅寸法以上である請求項1乃至3のいずれかに記載の非水電解液電池。
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JP2008117816A JP5360795B2 (ja) | 2008-04-28 | 2008-04-28 | 非水電解液電池 |
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JP2008117816A JP5360795B2 (ja) | 2008-04-28 | 2008-04-28 | 非水電解液電池 |
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JP2009266750A true JP2009266750A (ja) | 2009-11-12 |
JP5360795B2 JP5360795B2 (ja) | 2013-12-04 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012138287A (ja) * | 2010-12-27 | 2012-07-19 | Mitsubishi Heavy Ind Ltd | 電池 |
JP2015170408A (ja) * | 2014-03-05 | 2015-09-28 | 株式会社豊田自動織機 | 電極の製造方法 |
US10224564B2 (en) | 2015-06-25 | 2019-03-05 | Toyota Jidosha Kabushiki Kaisha | Nonaqueous electrolyte secondary battery and battery pack |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001085066A (ja) * | 1999-07-09 | 2001-03-30 | Matsushita Electric Ind Co Ltd | 非水電解液電池 |
JP2004327291A (ja) * | 2003-04-25 | 2004-11-18 | Hitachi Maxell Ltd | 非水電解液電池 |
JP2004342452A (ja) * | 2003-05-15 | 2004-12-02 | Hitachi Maxell Ltd | 非水電解液電池 |
JP2007250414A (ja) * | 2006-03-17 | 2007-09-27 | Hitachi Maxell Ltd | 筒形非水電解液電池 |
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- 2008-04-28 JP JP2008117816A patent/JP5360795B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001085066A (ja) * | 1999-07-09 | 2001-03-30 | Matsushita Electric Ind Co Ltd | 非水電解液電池 |
JP2004327291A (ja) * | 2003-04-25 | 2004-11-18 | Hitachi Maxell Ltd | 非水電解液電池 |
JP2004342452A (ja) * | 2003-05-15 | 2004-12-02 | Hitachi Maxell Ltd | 非水電解液電池 |
JP2007250414A (ja) * | 2006-03-17 | 2007-09-27 | Hitachi Maxell Ltd | 筒形非水電解液電池 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012138287A (ja) * | 2010-12-27 | 2012-07-19 | Mitsubishi Heavy Ind Ltd | 電池 |
JP2015170408A (ja) * | 2014-03-05 | 2015-09-28 | 株式会社豊田自動織機 | 電極の製造方法 |
US10224564B2 (en) | 2015-06-25 | 2019-03-05 | Toyota Jidosha Kabushiki Kaisha | Nonaqueous electrolyte secondary battery and battery pack |
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