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Title: Surface and bulk modified high capacity layered oxide cathodes with low irreversible capacity loss

The present invention includes compositions, surface and bulk modifications, and methods of making of (1-x)Li[Li.sub.1/3Mn.sub.2/3]O.sub.2.xLi[Mn.sub.0.5-yNi.sub.0.5-yCo.sub.2- y]O.sub.2 cathode materials having an O3 crystal structure with a x value between 0 and 1 and y value between 0 and 0.5, reducing the irreversible capacity loss in the first cycle by surface modification with oxides and bulk modification with cationic and anionic substitutions, and increasing the reversible capacity to close to the theoretical value of insertion/extraction of one lithium per transition metal ion (250-300 mAh/g).
Inventors:
 [1];  [1]
  1. (Austin, TX)
Issue Date:
OSTI Identifier:
1014487
Assignee:
Board of Regents, The University of Texas Systems (Austin, TX) OAK
Patent Number(s):
7,678,503
Application Number:
US Patent Application 11/861,248
Contract Number:
AC03-76SF00098
Research Org:
Board of Regents, The University of Texas Systems (Austin, TX)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English