Invention Grant
- Patent Title: Electrode for lithium batteries and method of manufacturing electrode for lithium batteries
- Patent Title (中): 锂电池用电极及锂电池用电极的制造方法
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Application No.: US12373021Application Date: 2008-01-31
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Publication No.: US08129076B2Publication Date: 2012-03-06
- Inventor: Satoshi Shibutani , Yuko Ogawa , Kazuyoshi Honda
- Applicant: Satoshi Shibutani , Yuko Ogawa , Kazuyoshi Honda
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2007-023938 20070202
- International Application: PCT/JP2008/051525 WO 20080131
- International Announcement: WO2008/093777 WO 20080807
- Main IPC: H01M4/38
- IPC: H01M4/38 ; H01M4/04

Abstract:
To accelerate a film formation rate in forming a negative electrode active material film by vapor deposition using an evaporation source containing Si as a principal component, and to provide an electrode for lithium batteries which is superior in productivity, and keeps the charge and discharge capacity at high level are contemplated. The method of manufacturing an electrode for lithium batteries of the present invention includes the steps of: providing an evaporation source containing Si and Fe to give a molar ratio of Fe/(Si+Fe) being no less than 0.0005 and no greater than 0.15; and vapor deposition by melting the evaporation source and permitting evaporation to allow for vapor deposition on a collector directly or through an underlying layer. The electrode for lithium batteries of the present invention includes a collector, and a negative electrode active material film which includes SiFeyOx (wherein, 0
Public/Granted literature
- US20090311602A1 ELECTRODE FOR LITHIUM BATTERIES AND METHOD OF MANUFACTURING ELECTRODE FOR LITHIUM BATTERIES Public/Granted day:2009-12-17
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