ELECTROLYTE-COATED CATHODE ACTIVE MATERIAL PARTICLES, ALL SOLID STATE BATTERY, AND METHOD FOR PRODUCING ELECTROLYTE-COATED CATHODE ACTIVE MATERIAL PARTICLES

摘要

A main object of the present invention is to provide electrolyte-coated cathode active material particles capable of increasing the discharge capacity of an all solid state battery and of enhancing the battery efficiency. In the present invention, the above object is achieved by providing electrolyte-coated cathode active material particles including cathode active material particles, and a sulfide solid electrolyte layer formed on the surface of the cathode active material particles.

主权项

1. An electrolyte-coated cathode active material particle, comprising a cathode active material particle; and a sulfide solid electrolyte layer formed on a surface of the cathode active material particle; and a lithium ion conductive oxide layer between the cathode active material particle and the sulfide solid electrolyte layer,
wherein a layer thickness of the sulfide solid electrolyte layer is in the range of 50 nm to 1000 nm.