Sony Corporation

Murata Manufacturing Co., Ltd.

Manabu Aoki

Kazuhito Hatta

Masatake Hayashi

Masahiro Miyamoto

Masaki Machida

Atsushi Kajita

Nobuaki Shimosaka

Yukako Fujimoto

Between an anode active material layer and a separator, a recess impregnation region of an anode side in which electrolytes and solid particles are disposed and including a recess that is located between adjacent anode active material particles positioned on the outermost surface of the anode active material layer is formed. Between a cathode active material layer and a separator, a recess impregnation region of a cathode side in which electrolytes and solid particles are disposed and including a recess that is located between adjacent cathode active material particles positioned on the outermost surface of the cathode active material layer is formed. The solid particles in the recess impregnation regions of the cathode side and the anode side have a concentration that is 30 volume % or more.

Cell, cell pack, electronic device, electric vehicle, electricity storage apparatus, and power system

A separator is provided. The separator includes a base layer and a surface layer, wherein the surface layer is on at least one side of the base layer, and wherein the surface layer is structured so as to collapse at time of charging to prevent damage to a negative electrode due to expansion thereof. A battery including the separator is also provided. An electric device, an electric vehicle, and an electrical storage device including the battery are further provided.

Separator and nonaqueous electrolyte battery

Growing community of inventors

Fukushima, Japan

Manabu Aoki