发明授权
- 专利标题: Anode for lithium secondary battery and lithium secondary battery using the anode
- 专利标题(中): 锂二次电池阳极和使用阳极的锂二次电池
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申请号: US11025114申请日: 2004-12-30
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公开(公告)号: US08728664B2公开(公告)日: 2014-05-20
- 发明人: Jin-Hwan Park , Tae-Byoung Oh , Dae-Ho Lee , Kil-Won Cho
- 申请人: Jin-Hwan Park , Tae-Byoung Oh , Dae-Ho Lee , Kil-Won Cho
- 申请人地址: KR Giheurg-gu, Yongin-si, Gyeonggi-do
- 专利权人: Samsung SDI Co., Ltd.
- 当前专利权人: Samsung SDI Co., Ltd.
- 当前专利权人地址: KR Giheurg-gu, Yongin-si, Gyeonggi-do
- 代理商 Robert E. Bushnell, Esq.
- 优先权: KR10-2004-0003573 20040117
- 主分类号: H01M4/13
- IPC分类号: H01M4/13 ; H01M4/58
摘要:
An anode for a lithium secondary battery contains an active material and a binder mixture. The active material can occlude or liberate lithium. The binder mixture includes a synthetic rubber-based latex-type binder, a cellulose-based thickener, and an acrylamide-based water-soluble polymer. The adhesive forces among electrode materials and between the electrode materials and a current collector are greatly increased. As a result, the number of battery defects, which are caused by low adhesive forces in the electrode plate manufacturing process, in particular, a rolling process, can be unexpectedly decreased. At the same time, high-rate discharge characteristics can be improved by decreasing the resistance at the interface between the electrode materials and the current collector.
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