POSITIVE ELECTRODE ACTIVE MATERIAL POWDER

摘要

A particulate positive electrode active material powder comprising particulate material (A) capable of lithium ion doping/dedoping and sticking matter (B) disposed in particulate or laminar form on the surface of the particulate material (provided that the particulate material (A) is not identical with the sticking matter (B)), characterized in that the percentage of [sum of the volumes of particles of 1 µm or less particle diameter]/[sum of the volumes of all particles] is 5% or less.