METAL COMPOUND PARTICLE GROUP, ELECTRODE FOR POWER STORAGE DEVICE, POWER STORAGE DEVICE, AND METHOD FOR PRODUCING METAL COMPOUND PARTICLE GROUP

摘要

A metal compound particle group that can suppress increase of internal resistance of power storage device, an electrode including the metal compound particle group for power storage device, and a method for producing the metal compound particle group are provided. A metal compound particle group has a 3D network structure in which metal compound particles are linked, and a coating layer C including silicon oxide is formed on a part of the metal compound particle group. The coating layer C including silicon oxide is formed on at least a part of a surface of the metal compound particle group. A gap 2 exists in the 3D network structure, and the coating layer C including silicon oxide is formed on the surface of the metal compound particle defining the gap 2. The coating layer C including silicon oxide is an amorphous silicon oxide.