JP5378305B2 - リチウムイオン電池 - Google Patents
リチウムイオン電池 Download PDFInfo
- Publication number
- JP5378305B2 JP5378305B2 JP2010133503A JP2010133503A JP5378305B2 JP 5378305 B2 JP5378305 B2 JP 5378305B2 JP 2010133503 A JP2010133503 A JP 2010133503A JP 2010133503 A JP2010133503 A JP 2010133503A JP 5378305 B2 JP5378305 B2 JP 5378305B2
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- JP
- Japan
- Prior art keywords
- battery
- lithium ion
- absorbing agent
- agent
- endothermic
- 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.)
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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
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Description
2Al(OH)3→Al2O3+3H2O …(1)
その後、本実施例の電池の安全性を確認するため、充電後の電池の内部短絡試験を行った。
吸熱剤8に水酸化アルミニウムあるいは水酸化マグネシウムを用いた結果、短絡時の発熱の全量を吸収でき、電池温度を100℃以下に抑えることができた。また、吸熱剤の吸熱反応で生じた水分を吸水剤7で吸水できたため、HFは発生しなかった。
なお、吸水剤7を用いず、セパレータと吸熱剤8を用いた二次電池を作製した。その結果、吸熱剤8として水酸化アルミニウムを使用した電池の場合は200〜300℃程度まで、水酸化マグネシウムの場合は350℃程度まで温度が上昇した。
上記の結果から、リチウムイオン電池のセパレータ4表面に吸熱剤8と吸水剤7の層を設けることにより、電池の内部短絡時の温度上昇とフッ化水素の生成を防止できることを確認した。
2 負極材
3 電池容器
4 セパレータ
5 正極材
6 負極
7 吸水剤
8 吸熱剤
9 複合層
Claims (3)
- 正極と、負極と、前記正極及び負極を電気絶縁するセパレータと、前記正極,負極及びセパレータを収納する電池容器と、前記電池容器内に充填された有機電解液とを備えたリチウムイオン電池であって、
吸熱剤と吸水剤とを備え、
前記セパレータと前記正極との間に、前記吸熱剤よりなる層と、前記吸水剤よりなる層とを備え、
前記吸熱剤は、金属水酸化物であり、
前記有機電解液は、LiPF 6 を含むことを特徴とするリチウムイオン電池。 - 請求項1に記載されたリチウムイオン電池において、
前記吸水剤は樹脂あるいはシリカであることを特徴とするリチウムイオン電池。 - 請求項1に記載されたリチウムイオン電池において、
前記吸水剤は繊維形状または粉末形状であることを特徴とするリチウムイオン電池。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010133503A JP5378305B2 (ja) | 2010-06-11 | 2010-06-11 | リチウムイオン電池 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010133503A JP5378305B2 (ja) | 2010-06-11 | 2010-06-11 | リチウムイオン電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011258481A JP2011258481A (ja) | 2011-12-22 |
JP5378305B2 true JP5378305B2 (ja) | 2013-12-25 |
Family
ID=45474436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010133503A Expired - Fee Related JP5378305B2 (ja) | 2010-06-11 | 2010-06-11 | リチウムイオン電池 |
Country Status (1)
Country | Link |
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JP (1) | JP5378305B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101750324B1 (ko) * | 2013-03-14 | 2017-06-23 | 주식회사 엘지화학 | 흡열물질을 포함하는 세퍼레이터 및 이를 구비한 전기화학소자 |
KR102002448B1 (ko) * | 2015-09-02 | 2019-07-23 | 주식회사 엘지화학 | 배터리 팩 |
KR102102982B1 (ko) * | 2015-11-27 | 2020-04-22 | 주식회사 엘지화학 | 내열성 이차전지용 분리막 및 이를 포함하는 리튬 이차전지 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11260416A (ja) * | 1998-03-11 | 1999-09-24 | Ngk Insulators Ltd | リチウム二次電池 |
JP2000077103A (ja) * | 1998-08-31 | 2000-03-14 | Hitachi Ltd | リチウム二次電池および機器 |
JP2000353505A (ja) * | 1999-06-10 | 2000-12-19 | Matsushita Electric Ind Co Ltd | 扁平形有機電解液電池 |
JP2003031187A (ja) * | 2001-07-17 | 2003-01-31 | Matsushita Electric Ind Co Ltd | 二次電池および電池パック |
TWI346406B (en) * | 2006-02-16 | 2011-08-01 | Lg Chemical Ltd | Lithium secondary battery with enhanced heat-resistance |
JP2008053196A (ja) * | 2006-07-27 | 2008-03-06 | Sony Corp | 非水電解質二次電池 |
WO2008156033A1 (ja) * | 2007-06-19 | 2008-12-24 | Teijin Limited | 非水系二次電池用セパレータ、その製造方法および非水系二次電池 |
JP5114788B2 (ja) * | 2007-09-28 | 2013-01-09 | 三菱重工業株式会社 | リチウム二次電池 |
JP2009238705A (ja) * | 2008-03-28 | 2009-10-15 | Mitsubishi Electric Corp | リチウム二次電池 |
JP2010067359A (ja) * | 2008-09-08 | 2010-03-25 | Teijin Ltd | 非水電解質電池セパレータ及びそれを用いた非水電解質二次電池 |
JP2010212046A (ja) * | 2009-03-10 | 2010-09-24 | Teijin Ltd | 非水系二次電池および非水系二次電池用吸着剤 |
-
2010
- 2010-06-11 JP JP2010133503A patent/JP5378305B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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JP2011258481A (ja) | 2011-12-22 |
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