Invention Grant
- Patent Title: Process for producing spherical carbon material
- Patent Title (中): 球形碳材料的制造方法
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Application No.: US11547364Application Date: 2005-03-25
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Publication No.: US07651817B2Publication Date: 2010-01-26
- Inventor: Naohiro Sonobe , Hiroshi Ohta
- Applicant: Naohiro Sonobe , Hiroshi Ohta
- Applicant Address: JP Tokyo
- Assignee: Kureha Corporation
- Current Assignee: Kureha Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, LLP.
- Priority: JP2004-100750 20040330
- International Application: PCT/JP2005/005581 WO 20050325
- International Announcement: WO2005/097674 WO 20051020
- Main IPC: H01M4/58
- IPC: H01M4/58 ; C01D3/00

Abstract:
A process for producing a spherical carbon material, comprising: subjecting a spherical vinyl resin to an oxidation treatment in an oxidizing gas atmosphere to obtain a spherical carbon precursor, and carbonizing the spherical carbon precursor at 1000-2000° C. in a non-oxidizing gas atmosphere. The thus-obtained spherical carbon material exhibits excellent performances, including high output performance and durability, when used, e.g., as a negative electrode material for non-aqueous electrolyte secondary batteries.
Public/Granted literature
- US20070212610A1 Process For Producing Spherical Carbon Material Public/Granted day:2007-09-13
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