Composition for positive electrode of non-aqueous electrolytic solution secondary battery, positive electrode sheet, and non-aqueous electrolytic solution secondary battery

Abstract

Provided are a composition for a positive electrode containing a positive electrode active material consisting of a large particle group A having a particle diameter of 5.0 μm or more and a small particle group B having a particle diameter of less than 5.0 μm, in which, in a number-based particle size distribution of the positive electrode active material, in a case where the total frequency is set to 100%, a frequency of the large particle group A is 60% or more and a frequency of the small particle group B is 40% or less, and a surface tension γB (mN/m) of the small particle group B with respect to N-methylpyrrolidone satisfies an expression B1: 15.0≤γB≤40.0; a positive electrode sheet including a positive electrode active material layer formed of the composition for a positive electrode; and a non-aqueous electrolytic solution secondary battery using the positive electrode sheet.

Dependencies are inferred from the claim text.