Patent ID: 8703341
Filing Date: 2014-04-22
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. A positive electrode active material for lithium battery, containing a spinel type Fd3-m lithium transition metal oxide represented by general formula Li 1+x M 2−x O 4−δ wherein M consists of Mn, Al and Mg, x represents 0.01 to 0.08 and 0≦δ, and a boron compound, the spinel type Fd3-m lithium transition metal oxide having an inter-atomic distance Li—O of 1.978 Å to 2.006 Å as measured by the Rietveld method using the fundamental method, and the amount of magnetic deposit measured for the positive electrode active material for lithium battery being 600 ppb or less when measured by a measurement method comprising: