Invention Grant
- Patent Title: Negative electrode for lithium secondary battery, method for producing same, and lithium secondary battery comprising such negative electrode for lithium secondary battery
- Patent Title (中): 锂二次电池用负极及其制造方法以及锂二次电池用负极的锂二次电池
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Application No.: US12089046Application Date: 2007-01-24
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Publication No.: US08110307B2Publication Date: 2012-02-07
- Inventor: Kazuya Iwamoto
- Applicant: Kazuya Iwamoto
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2006-015896 20060125
- International Application: PCT/JP2007/051064 WO 20070124
- International Announcement: WO2007/086411 WO 20070802
- Main IPC: H01M4/13
- IPC: H01M4/13
Abstract:
A negative electrode 100 for a lithium secondary battery includes: a current collector 11; a negative-electrode active material body 12 supported by the current collector 11, the negative-electrode active material body 12 having a chemical composition represented as SiOx (0.1≦x≦1.2); and a covering layer 14 formed on the negative-electrode active material body 12, the covering layer 14 having a chemical composition composed of silicon dioxide. The covering layer 12 has a thickness which is greater than 1 nm and no more than 10 nm.
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