Invention Grant
- Patent Title: Cathode active material for non-aqueous electrolyte secondary battery and manufacturing method of the same
- Patent Title (中): 非水电解质二次电池用正极活性物质及其制造方法
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Application No.: US12515212Application Date: 2007-11-16
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Publication No.: US08454925B2Publication Date: 2013-06-04
- Inventor: Shigeto Okada , Manabu Nishijima , Takayuki Doi , Jun-ichi Yamaki , Irina D. Gocheva , Toshiyasu Kiyabu
- Applicant: Shigeto Okada , Manabu Nishijima , Takayuki Doi , Jun-ichi Yamaki , Irina D. Gocheva , Toshiyasu Kiyabu
- Applicant Address: JP Tokyo JP Fukuoka-shi
- Assignee: Mitsubishi Heavy Industries, Ltd.,Kyushu University, National University Corporation
- Current Assignee: Mitsubishi Heavy Industries, Ltd.,Kyushu University, National University Corporation
- Current Assignee Address: JP Tokyo JP Fukuoka-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2006-311126 20061117; JP2007-083634 20070328
- International Application: PCT/JP2007/072289 WO 20071116
- International Announcement: WO2008/059961 WO 20080522
- Main IPC: H01M4/58
- IPC: H01M4/58 ; C01G23/02 ; C01G45/06 ; C01G51/08 ; C01G49/10 ; C01G53/08 ; C01G31/04
Abstract:
In a non-aqueous electrolyte secondary battery, in order to adjust a cathode active material in which guest cation such as Na and Li is included, alkaline metal fluoride which is expressed by a general formula AF and transition metal fluoride which is expressed by a formula M′ F2 are subjected to a mechanical milling process to produce metal fluoride compound AM′ F3. The mechanical milling process desirably uses a planetary ball mill.
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