JP5406733B2 - 扁平捲回式二次電池 - Google Patents
扁平捲回式二次電池 Download PDFInfo
- Publication number
- JP5406733B2 JP5406733B2 JP2010004573A JP2010004573A JP5406733B2 JP 5406733 B2 JP5406733 B2 JP 5406733B2 JP 2010004573 A JP2010004573 A JP 2010004573A JP 2010004573 A JP2010004573 A JP 2010004573A JP 5406733 B2 JP5406733 B2 JP 5406733B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- battery
- secondary battery
- negative electrode
- positive electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
-
- 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)
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
本実施形態は、基本的に次のように構成する。
扁平捲回式二次電池の組立てについて図1及び3を用いて説明する。
以下、本実施形態の扁平捲回式二次電池の作用等について説明する。
比較例1は、切り抜き等の加工を行っていない平板状の芯材を使用したものである。芯材以外の部分については実施例と同様とした。
実施例及び比較例の扁平捲回式二次電池について寿命特性を評価した。
Claims (3)
- 正極と、負極と、これらの間に挟まれたセパレータとを芯材に捲回して形成した電極捲回群を収容した扁平捲回式二次電池であって、前記芯材は、薄肉部、切り欠き部又は切り抜き部を有し、前記薄肉部、前記切り欠き部又は前記切り抜き部を前記芯材の幅広部の中心部に設けたことを特徴とする扁平捲回式二次電池。
- 前記芯材が樹脂で形成され、絶縁性を有することを特徴とする請求項1記載の扁平捲回式二次電池。
- 前記芯材の捲回軸方向の端部領域における厚さを前記芯材の厚さのうち最も厚くしてあることを特徴とする請求項1又は2に記載の扁平捲回式二次電池。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010004573A JP5406733B2 (ja) | 2010-01-13 | 2010-01-13 | 扁平捲回式二次電池 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010004573A JP5406733B2 (ja) | 2010-01-13 | 2010-01-13 | 扁平捲回式二次電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011146181A JP2011146181A (ja) | 2011-07-28 |
JP5406733B2 true JP5406733B2 (ja) | 2014-02-05 |
Family
ID=44460882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010004573A Expired - Fee Related JP5406733B2 (ja) | 2010-01-13 | 2010-01-13 | 扁平捲回式二次電池 |
Country Status (1)
Country | Link |
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JP (1) | JP5406733B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013110045A (ja) * | 2011-11-24 | 2013-06-06 | Hitachi Ltd | 非水電解液捲回型二次電池 |
KR20130118716A (ko) * | 2012-04-20 | 2013-10-30 | 주식회사 엘지화학 | 전극 조립체, 이를 포함하는 전지셀 및 디바이스 |
JP6111076B2 (ja) * | 2013-01-17 | 2017-04-05 | 川崎重工業株式会社 | 二次電池およびその製造方法 |
EP3136494A1 (de) * | 2015-08-26 | 2017-03-01 | Lithium Energy and Power GmbH & Co. KG | Verfahren zur herstellung eines elektrodenwickels, elektrodenwickel und batteriezelle |
CN216413140U (zh) * | 2021-11-26 | 2022-04-29 | 宁德时代新能源科技股份有限公司 | 电芯组件、电池单体、电池及用电装置 |
WO2024138641A1 (zh) * | 2022-12-30 | 2024-07-04 | 厦门新能安科技有限公司 | 圆柱电池和电子装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002042854A (ja) * | 2000-07-24 | 2002-02-08 | Japan Storage Battery Co Ltd | 電 池 |
JP4972824B2 (ja) * | 2001-03-21 | 2012-07-11 | 新神戸電機株式会社 | 扁平捲回群製造方法及び捲回装置 |
JP2003346879A (ja) * | 2002-05-24 | 2003-12-05 | Japan Storage Battery Co Ltd | 電 池 |
JP2004349141A (ja) * | 2003-05-23 | 2004-12-09 | Sanyo Electric Co Ltd | 扁平巻回電極体を備えた電池及びその製造方法 |
JP4789584B2 (ja) * | 2004-11-12 | 2011-10-12 | 三洋電機株式会社 | 扁平渦巻電極体を備えた二次電池の製造方法 |
JP2007294111A (ja) * | 2006-04-20 | 2007-11-08 | Toshiba Battery Co Ltd | 小型電池 |
JP2008047304A (ja) * | 2006-08-10 | 2008-02-28 | Mitsui Mining & Smelting Co Ltd | 非水電解液二次電池 |
-
2010
- 2010-01-13 JP JP2010004573A patent/JP5406733B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2011146181A (ja) | 2011-07-28 |
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