Invention Grant
- Patent Title: Graphite material, carbonaceous material for battery electrodes, and batteries
- Patent Title (中): 石墨材料,电池电极用碳质材料和电池
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Application No.: US13266068Application Date: 2010-10-22
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Publication No.: US08372373B2Publication Date: 2013-02-12
- Inventor: Yoshiyuki Nishimura , Akinori Sudoh , Shunsuke Yoshioka
- Applicant: Yoshiyuki Nishimura , Akinori Sudoh , Shunsuke Yoshioka
- Applicant Address: JP Tokyo
- Assignee: Showa Denko K.K.
- Current Assignee: Showa Denko K.K.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2009-243381 20091022
- International Application: PCT/JP2010/068690 WO 20101022
- International Announcement: WO2011/049199 WO 20110428
- Main IPC: C01B31/04
- IPC: C01B31/04 ; H01B1/04 ; B32B9/00

Abstract:
Provided are a graphite material suitable as an electrode material for nonaqueous electrolyte secondary batteries, a carbonaceous material for battery electrodes, and secondary batteries which exhibit excellent charge-discharge cycle characteristics and excellent severe-current-load characteristics. A graphite material which has specific sizes of optically anisotropic and isotropic structures, a specific content ratio between both structures, and various orientation of crystallization; and a carbonaceous material for battery electrodes which is made using the graphite material and which exhibits a large discharge capacity and a small irreversible capacity with the severe-current-load characteristics and cycle characteristics being kept at high levels.
Public/Granted literature
- US20120045642A1 GRAPHITE MATERIAL, CARBONACEOUS MATERIAL FOR BATTERY ELECTRODES, AND BATTERIES Public/Granted day:2012-02-23
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