Invention Grant
- Patent Title: Positive electrode material for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery using the same, and method for producing positive electrode material for non-aqueous electrolyte secondary battery
- Patent Title (中): 非水电解质二次电池用正极材料，使用其的非水电解质二次电池以及非水电解质二次电池用正极材料的制造方法
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Application No.: US12170177Application Date: 2008-07-09
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Publication No.: US07972729B2Publication Date: 2011-07-05
- Inventor: Teruaki Yamamoto , Shinichi Waki , Yasuhiko Bito
- Applicant: Teruaki Yamamoto , Shinichi Waki , Yasuhiko Bito
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2007-181194 20070710
- Main IPC: H01M4/00
- IPC: H01M4/00 ; H01M4/50 ; H01M4/58
Abstract:
The invention includes, as a positive electrode material, active material particles comprising a lithium-containing manganese oxide represented by the general formula: Li1+aMn2−x−aMxO4+y where M is a transition metal element other than Mn, 0 1.0 and A≧0.3. In an X-ray diffraction analysis using CuKa radiation as an X-ray source, the intensity ratio of the largest peak of peaks attributed to an oxide of the transition metal element M to a peak around 2θ=36.4° is 0.25 or less.
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