发明授权
- 专利标题: Lithium ion secondary battery
- 专利标题(中): 锂离子二次电池
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申请号: US11790545申请日: 2007-04-26
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公开(公告)号: US07931983B2公开(公告)日: 2011-04-26
- 发明人: Tsumoru Ohata , Junji Nakajima , Tetsuya Hayashi , Takashi Takano , Shigeo Ikuta , Kohei Suzuki , Kouji Nishida , Masao Fukunaga , Akiko Fujino
- 申请人: Tsumoru Ohata , Junji Nakajima , Tetsuya Hayashi , Takashi Takano , Shigeo Ikuta , Kohei Suzuki , Kouji Nishida , Masao Fukunaga , Akiko Fujino
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will & Emery LLP
- 优先权: JP2003-281419 20030729; JP2003-341644 20030930; JP2003-343584 20031001; JP2004-025983 20040202
- 主分类号: H01M4/62
- IPC分类号: H01M4/62
摘要:
A lithium ion secondary battery includes a positive electrode capable of absorbing and desorbing lithium ion, a negative electrode capable of absorbing and desorbing lithium ion, a porous film interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte: the porous film being adhered to a surface of at least one of the positive electrode and the negative electrode; the porous film including a filler and a resin binder; the resin binder content in the porous film being 1.5 to 8 parts by weight per 100 parts by weight of the filler; and the resin binder including an acrylonitrile unit, an acrylate unit, or a methacrylate unit.
公开/授权文献
- US20070196738A1 Lithium ion secondary battery 公开/授权日:2007-08-23