Invention Grant
US09246172B2 Cathode material for lithium ion secondary batteries, cathode member for lithium ion secondary batteries, and lithium ion secondary battery
有权
用于锂离子二次电池的阴极材料，锂离子二次电池用阴极部件和锂离子二次电池
- Patent Title: Cathode material for lithium ion secondary batteries, cathode member for lithium ion secondary batteries, and lithium ion secondary battery
- Patent Title (中): 用于锂离子二次电池的阴极材料，锂离子二次电池用阴极部件和锂离子二次电池
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Application No.: US14348416Application Date: 2012-09-14
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Publication No.: US09246172B2Publication Date: 2016-01-26
- Inventor: Hirokazu Sasaki , Atsushi Nemoto , Masahiko Miyahara
- Applicant: Hirokazu Sasaki , Atsushi Nemoto , Masahiko Miyahara
- Applicant Address: JP Tokyo
- Assignee: SHOEI CHEMICAL INC.
- Current Assignee: SHOEI CHEMICAL INC.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2011-212295 20110928
- International Application: PCT/JP2012/073598 WO 20120914
- International Announcement: WO2013/047233 WO 20130404
- Main IPC: H01M4/505
- IPC: H01M4/505 ; H01M4/525 ; H01M4/36 ; H01M10/0525 ; H01M10/052 ; H01M4/587
Abstract:
A cathode material for a lithium ion secondary battery includes an oxide represented by a composition formula Li2-xMIIyM(Si,MB)O4, wherein MII represents a divalent element; M represents at least one element selected from the group consisting of Fe, Mn, Co and Ni; and MB represents, as an optional component, an element substituted for Si to compensate for a difference between an electric charge of [Li2]2+ and an electric change of [Li2-xMIIy]n+ as needed. In the composition formula representing the oxide, x and y are −0.25
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