Invention Grant
- Patent Title: Positive electrode material for lithium ion secondary battery and lithium ion secondary battery using the same
- Patent Title (中): 锂离子二次电池用正极材料及使用其的锂离子二次电池
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Application No.: US12696803Application Date: 2010-01-29
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Publication No.: US08758941B2Publication Date: 2014-06-24
- Inventor: Hiroaki Konishi , Toyotaka Yuasa
- Applicant: Hiroaki Konishi , Toyotaka Yuasa
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2009-045045 20090227
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M4/525 ; H01M4/131 ; H01M4/36 ; H01M4/52 ; H01M10/052 ; H01M4/02
Abstract:
This invention provides a positive electrode material having high capacity and safety, and a lithium ion secondary battery using the positive electrode material, the lithium ion secondary battery using a positive electrode active substance comprising a first transition metal oxide represented by the compositional formula: Lix1Nia1Mnb1Coc1Md1O2; a second transition metal oxide represented by the compositional formula: Lix2Nia2Mnb2Coc2Md2O2; and a third transition metal oxide represented by the compositional formula: Lix3Nia3Mnb3Coc3Md3O2; in which a3
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