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High voltage cathode compositions for lithium-ion batteries

United States Patent

9,601,771
March 21, 2017
View the Complete Patent at the US Patent & Trademark Office
A lithium transition metal oxide composition. The composition has the formula Li.sub.a[Li.sub.bNi.sub.cMn.sub.dCo.sub.e]O.sub.2, where a.gtoreq.0.9, b.gtoreq.0, c>0, d>0, e>0, b+c+d+e=1, 1.05.ltoreq.c/d.ltoreq.1.4, 0.05.ltoreq.e.ltoreq.0.30, 0.9.ltoreq.(a+b)/M.ltoreq.1.06, and M=c+d+e. The composition has an O3 type structure.
Lu; Zhonghua (Woodbury, MN), Eberman; Kevin W (St. Paul, MN)
3M INNOVATIVE PROPERTIES COMPANY (St. Paul, MN)
15/ 223,786
20160336596
July 29, 2016
GOVERNMENT RIGHTS The U.S. Government may have certain rights to this invention under the terms of Contract No. DE-EE0005499 granted by the Department of Energy.