Invention Grant
- Patent Title: Negative electrode for lithium secondary battery, and lithium secondary battery including the same
- Patent Title (中): 锂二次电池用负极和包含锂二次电池的锂二次电池
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Application No.: US12297836Application Date: 2007-10-02
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Publication No.: US08399129B2Publication Date: 2013-03-19
- Inventor: Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara , Yasutaka Kogetsu , Takuhiro Nishimura
- Applicant: Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara , Yasutaka Kogetsu , Takuhiro Nishimura
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2006-284918 20061019
- International Application: PCT/JP2007/069257 WO 20071002
- International Announcement: WO2008/050586 WO 20080502
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/36
Abstract:
A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same.
Public/Granted literature
- US20090176158A1 NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Public/Granted day:2009-07-09
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