发明申请
- 专利标题: ELECTRODE MATERIAL CONTAINING POLYVINYL ALCOHOL AS BINDER AND RECHARGEABLE LITHIUM BATTERY COMPRISING THE SAME
- 专利标题(中): 含有聚乙烯醇的电极材料作为粘合剂和包含其的可充电锂电池
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申请号: US11622834申请日: 2007-01-12
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公开(公告)号: US20070264568A1公开(公告)日: 2007-11-15
- 发明人: Minjung Ryu , Young-Min Kim , Eun-Suok Oh , SeungRim Yang , Juhyun Kim , Ki Woo Chun , ChanHong Lee , Ki-Young Lee , Seo-Jae Lee , JongMoon Jin , Taeyeon Kim
- 申请人: Minjung Ryu , Young-Min Kim , Eun-Suok Oh , SeungRim Yang , Juhyun Kim , Ki Woo Chun , ChanHong Lee , Ki-Young Lee , Seo-Jae Lee , JongMoon Jin , Taeyeon Kim
- 申请人地址: KR Seoul 150-721
- 专利权人: LG CHEM, LTD.
- 当前专利权人: LG CHEM, LTD.
- 当前专利权人地址: KR Seoul 150-721
- 优先权: KR10-2006-0005198 20060118
- 主分类号: H01M4/60
- IPC分类号: H01M4/60
摘要:
Provided is an electrode mix for a secondary battery containing an electrode active material, comprising a PVA having a degree of polymerization of more than 2500 and a degree of saponification of more than 90% as a binder, and a lithium secondary battery comprising the same. Use of the binder according to the present invention can provide advantageous effects such as improved adhesive strength between the electrode mix and current collector and between the electrode mixes, prevention of the peeling and separation of the active material even after repeated charge/discharge cycles, and inhibition of decreases in the capacity or output power retention rate of the secondary battery.