发明申请
- 专利标题: NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
- 专利标题(中): 非水电解质二次电池
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申请号: US12030411申请日: 2008-02-13
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公开(公告)号: US20080193848A1公开(公告)日: 2008-08-14
- 发明人: Masato Fujikawa , Masaya Ugaji , Takayuki Shirane , Kaoru Inoue
- 申请人: Masato Fujikawa , Masaya Ugaji , Takayuki Shirane , Kaoru Inoue
- 优先权: JP2007-031805 20070213
- 主分类号: H01M4/58
- IPC分类号: H01M4/58
摘要:
A non-aqueous electrolyte secondary battery comprising a negative electrode having a current collector provided with convex portions and concave portions on both surfaces, a first columnar body formed in a tilting orientation on the convex portion on one of the surfaces of the current collector, and a second columnar body formed in a tilting orientation on the convex portion on the other surface, a positive electrode having a positive electrode current collector provided with a positive electrode mixture layer containing a positive electrode active material capable of reversibly inserting and extracting lithium ions on both surfaces, and a separator interposed between the positive electrode and the negative electrode in a confronting manner, wherein the first columnar body and the second columnar body on the negative electrode are tilted to an orthogonal direction of a winding direction of the current collector.
公开/授权文献
- US08048569B2 Non-aqueous electrolyte secondary battery 公开/授权日:2011-11-01
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