Dai Nippon Printing Co., Ltd.

Masahiro Yoshikawa

Koji Shimizu

Kenichiro Suto

Hiroshi Miyama

Hideki Kurokawa

Kiyoshi Oguchi

Jun Fukuda

Takuya Yamazaki

Hitoshi Sekino

Katsuhiko Hayashi

Tsutomu Yoshinaka

Katsumi Kameda

A battery packet () comprises a battery case () formed by processing a battery case forming laminated sheet (), a batterycontained in the battery case (), and tabs () extending outside from the battery case (). The battery case forming laminated sheet () is formed by laminating a first base film layer (), i.e., an outermost layer, a metal foil layer (), and a heat-adhesive resin layer () in that order. The first base film layer () is a biaxially oriented polyethylene terephthalate resin film or a biaxially oriented nylon resin film. The metal foil layer () is an aluminum or copper foil. The heat-adhesive resin layer () is formed of a polyolefin resin, more preferably, of an acid-denatured polyolefin resin.

Battery case forming sheet and battery packet

A battery packet ( ) comprises a battery case ( ) formed by processing a battery case forming laminated sheet ( ), a battery contained in the battery case ( ), and tabs ( ) extending outside from the battery case ( ). The battery case forming laminated sheet ( ) is formed by laminating a first base film layer ( ), i.e., an outermost layer, a metal foil layer ( ), and a heat-adhesive resin layer ( ) in that order. The first base film layer ( ) is a biaxially oriented polyethylene terephthalate resin film or a biaxially oriented nylon resin film. The metal foil layer ( ) is an aluminum or copper foil. The heat-adhesive resin layer ( ) is formed of a polyolefin resin, more preferably, of an acid-denatured polyolefin resin.

Sheet for cell and cell device

A soft, meshed, electromagnetic shielding textile sheet is placed in a mold, and the mold is clamped. The soft, meshed electromagnetic shielding textile sheet is shaped so as to conform with the inner surface of the mold when the mold is clamped. Therefore, it is not necessary to fabricate beforehand any insert of a shape corresponding to that of the inner surface of the mold. Since the meshed, electromagnetic shielding textile sheet is impregnated with part of a resin injected into the mold to form an injection-molded resin body, the adhesion of the electromagnetic shielding textile sheet to the injection-molded resin body is improved.

Resin molding

Growing community of inventors

Shinjuku-ku, Japan

Masahiro Yoshikawa