Invention Grant
- Patent Title: Alkali metal oxyanion electrode material having a carbon deposited by pyrolysis and process for making same
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Application No.: US14198856Application Date: 2014-03-06
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Publication No.: US09755222B2Publication Date: 2017-09-05
- Inventor: Guoxian Liang , Steeve Rousselot , Jasmin Dufour
- Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Applicant Address: GB London
- Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Current Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Current Assignee Address: GB London
- Agency: Young & Thompson
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/04 ; H01M4/58 ; H01M4/62 ; H01M4/136 ; H01M4/1397 ; H01M4/133 ; H01M4/587 ; H01M10/0525
Abstract:
An alkali metal oxyanion cathode material comprising particles, where the particles carry, on at least a portion of the particle surface, carbon deposit by pyrolysis is described. The particles have the general formula A:M:M′:XO4 where the average valency of M is +2 or greater; A is at least one alkali metal selected from Li, Na and K; M is at least Fe and/or Mn; and M′ is a metal of valency of 2+ or more.
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