Invention Grant
- Patent Title: Positive electrode active material and non-aqueous electrolyte secondary battery containing the same
- Patent Title (中): 正极活性物质和含有它的非水电解质二次电池
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Application No.: US10277989Application Date: 2002-10-23
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Publication No.: US08658125B2Publication Date: 2014-02-25
- Inventor: Tsutomu Ohzuku , Hiroshi Yoshizawa , Masatoshi Nagayama
- Applicant: Tsutomu Ohzuku , Hiroshi Yoshizawa , Masatoshi Nagayama
- Applicant Address: JP Osaka JP Osaka
- Assignee: Panasonic Corporation,Osaka City University
- Current Assignee: Panasonic Corporation,Osaka City University
- Current Assignee Address: JP Osaka JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2001-328219 20011025
- Main IPC: C01D1/02
- IPC: C01D1/02 ; C01G45/12 ; H01M4/13 ; H01M4/58 ; H01M4/00
Abstract:
The present invention relates to a positive electrode active material comprising a lithium-containing composite oxide containing nickel with an oxidation state of 2.0 to 2.5 and manganese with an oxidation state of 3.5 to 4.0, the oxidation state determined by the shifts of energy at which absorption maximum is observed in the X-ray absorption near-K-edge structures, and to a non-aqueous electrolyte secondary battery using the same, the positive electrode active material being characterized in having a high capacity, a long storage life and excellent cycle life.
Public/Granted literature
- US20030087154A1 Positive electrode active material and non-aqueous electrolyte secondary battery containing the same Public/Granted day:2003-05-08
Information query
IPC分类:
