发明名称 |
Non-aqueous electrolyte secondary battery |
摘要 |
A non-aqueous electrolyte secondary battery comprising at least a negative electrode having a current collector provided thereon with convex portions and columnar bodies formed on the convex portions, each of the columnar bodies comprising n stages (where n≧2) of overlaid columnar body portions alternately tilted to different orientations along a longitudinal direction of the current collector, a positive electrode having a positive electrode current collector provided on both surfaces thereof with a positive electrode mixture layer containing a positive electrode active material capable of inserting and extracting lithium ions reversibly, and a separator interposed between the positive electrode and the negative electrode in a confronting manner, wherein tip portions of the columnar body portions at the uppermost stage of the columnar bodies on the negative electrode are tilted toward a trailing end of winding direction. |
申请公布号 |
US8067115(B2) |
申请公布日期 |
2011.11.29 |
申请号 |
US20080030528 |
申请日期 |
2008.02.13 |
申请人 |
SHIRANE TAKAYUKI;INOUE KAORU;UGAJI MASAYA;FUJIKAWA MASATO;SATO TOSHITADA;PANASONIC CORPORATION |
发明人 |
SHIRANE TAKAYUKI;INOUE KAORU;UGAJI MASAYA;FUJIKAWA MASATO;SATO TOSHITADA |
分类号 |
H01M4/13;H01M4/02;H01M4/131;H01M4/48;H01M4/485;H01M4/58;H01M10/0525;H01M10/36 |
主分类号 |
H01M4/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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