Positive electrode active material

  • US 9,287,554 B2
  • Filed: 08/22/2011
  • Issued: 03/15/2016
  • Est. Priority Date: 09/02/2010
  • Status: Active Grant
First Claim
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1. A positive electrode active material that is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g:

  • LixM1yM31-yO2

    (I)wherein M1 is V, M3 is the both of Ni and Mn, x is not less than 0.9 and not more than 1.3, and y is more than 0 and not more than 0.01.

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