Invention Grant
- Patent Title: Non-aqueous electrolyte secondary battery
- Patent Title (中): 非水电解质二次电池
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Application No.: US12030411Application Date: 2008-02-13
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Publication No.: US08048569B2Publication Date: 2011-11-01
- Inventor: Masato Fujikawa , Masaya Ugaji , Takayuki Shirane , Kaoru Inoue
- Applicant: Masato Fujikawa , Masaya Ugaji , Takayuki Shirane , Kaoru Inoue
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2007-031805 20070213
- Main IPC: H01M4/13
- IPC: H01M4/13

Abstract:
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.
Public/Granted literature
- US20080193848A1 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY Public/Granted day:2008-08-14
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