Nissan Motor Company Limited

Envision Aesc Japan Ltd.

Masakazu Shibuya

Kenichi Ochiai

Ryuichi Amagai

Shinichiro Kitagawa

A flat battery basically comprises a battery body, a plate-shaped member and an elastic member. The battery body includes a power generation unit and a case member encasing and sealing the power generation unit therein. The plate-shaped member is configured to be disposed between an outer periphery portion of the battery body and an outer periphery portion of an adjacent battery body stacked that is to be stacked on the battery body. The elastic member joins the battery body and the plate-shaped member to connect the battery body and the plate-shaped member, and covers at least part of the plate-shaped member. The plate-shaped member includes an exposed part which is exposed from part of an end surface of the elastic member which covers the plate-shaped member in a thickness direction of the battery body.

Flat battery and method for producing flat battery

A compressed air is ejected from air ejector ports () to between a mold surface defining cavity () of mold () and a surface of a hot melt resin layer after starting to fill or inject the hot melt resin material into cavity () and before a temperature of the hot melt resin material becomes equal to or lower than a softening point thereof. Recesses (Q) are formed by positively generating a 'sink mark' on a surface of edge protector () by ejection of the compressed air, and at the same time, gap (G) is formed between the surface of edge protector () and the mold surface. As a result, when bead-shaped edge protector () is integrally formed in long-side heat-fused portions () of laminated-film exterior package case () by using a thermoplastic hot melt resin material, mold releasability of the molded edge protector from the mold can be enhanced.

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Fuji, Japan

Masakazu Shibuya