Patent ID: 9692047
Date: 2017-06-27
CPC Classifications: H01M,Y02E

Claim:
1. A positive electrode active material for a non-aqueous electrolyte secondary battery, comprising: a lithium composite oxide as a main component, wherein: a ratio of a number of moles of Ni in the lithium composite oxide to a total number of moles of metal elements in the lithium composite oxide other than Li is larger than 30 mol %, the lithium composite oxide includes secondary particles each including aggregated primary particles, the primary particles having a volumetric average particle size of 0.5 μm or more, the lithium composite oxide has an average crystallite size of 70 to 300 nm in a (1 1 0) vector direction, and at least one element selected from W, Mo, Nb, and Ta is dissolved in the lithium composite oxide.