ACTIVE SUBSTANCE MATERIAL, BATTERY, AND METHOD FOR PRODUCING ACTIVE SUBSTANCE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an active substance material containing an active substance particle of a nanoparticle and capable of improving electrode density.SOLUTION: An active substance material of the present invention includes a tertiary particle structure containing a secondary particle formed by an aggregation of primary particles. Each primary particle comprises an active substance particle and has an average grain size in the range of 5 to 50 nm.