Invention Grant
- Patent Title: Method for producing non-graphitizable carbon material, non-graphitizable carbon material, negative electrode material for lithium-ion secondary battery, and lithium-ion secondary battery
- Patent Title (中): 不石墨化碳材料，不石墨化碳材料，锂离子二次电池用负极材料和锂离子二次电池的制造方法
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Application No.: US14374998Application Date: 2013-01-24
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Publication No.: US09327978B2Publication Date: 2016-05-03
- Inventor: Ryuta Haga , Makiko Ijiri , Tetsuo Shiode , Katsuhiro Nagayama
- Applicant: JFE CHEMICAL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE CHEMICAL CORPORATION
- Current Assignee: JFE CHEMICAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-014951 20120127; JP2012-251004 20121115
- International Application: PCT/JP2013/000357 WO 20130124
- International Announcement: WO2013/111595 WO 20130801
- Main IPC: C01B31/02
- IPC: C01B31/02 ; H01M4/587 ; H01M10/0525 ; H01M4/133
Abstract:
Provided is a method for producing a non-graphitizable carbon material, the method including a step in which a raw material of the non-graphitizable carbon material is subjected to a cross-linking treatment to obtain a cross-linked product; a step in which the cross-linked product is subjected to an infusibility-imparting treatment to obtain an infusibility-imparted product; a step in which the infusibility-imparted product is subjected to a pulverizing treatment; and a step in which the infusibility-imparted product that has been subjected to the pulverizing treatment is fired at 900° C. to 1300° C. to obtain the non-graphitizable carbon material.
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