Sumitomo Electric Industries, Limited

Mitsuyasu Ueda

Naoki Ayai

Kentaro Yoshida

Tomoharu Takeyama

Yasushi Mochida

Tetsuo Akita

Kazuhiro Goto

A power storage device according to an aspect of the present disclosure includes: a casing including a bottom wall and a top wall opposite to the bottom wall; a storage battery; an electrical unit; and a cooling unit. The storage battery is disposed in the casing and separated from the bottom wall. The electrical unit is disposed in the casing and located closer to the top wall than the storage battery is. A first fan is disposed between the storage battery and the electrical unit and configured to direct air from the storage battery toward the electrical unit.

Power storage device

Provided are a nonaqueous-electrolyte battery in which short circuits between the positive- and negative-electrode layers can be suppressed with certainty and a method for producing the battery. A nonaqueous-electrolyte batteryincludes a positive-electrode active-material layercontaining a Li-containing oxide; a negative-electrode active-material layeron which deposition of Li metal can occur; and a sulfide-solid-electrolyte layer (SE layer)disposed between these active-material layersand. The SE layerof the nonaqueous-electrolyte batteryincludes a powder-formed layerand a dense-film layerformed on a surface of the powder-formed layerby a vapor-phase process. In the nonaqueous-electrolyte battery, the powder-formed layeris formed by a compression-molding process on a positive-electrode body including the positive-electrode active-material layerand the dense-film layeris then formed by a vapor-phase process on the positive-electrode body that is provided with the powder-formed layerand serves as a substrate.

Nonaqueous-electrolyte battery and method for producing the same

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Osaka, Japan

Mitsuyasu Ueda