Japan Storage Battery Co., Ltd.

Gs Yuasa International Ltd.

Takao Maki

Yasuharu Sakai

Tetsuzo Kojima

Jun-ichi Miura

Masayuki Wakabe

Kenji Kawate

Takeshi Kawahara

Hisashi Tukamoto

Masanori Kogure

Tetuzo Kojima

Kenichi Miyamoto

An energy storage device includes: an electrode body including curved portions formed by winding an electrode; a container in which the electrode body is accommodated; and a cover plate structure including a cover plate closing the container. The electrode body is accommodated in the container while one end portion in a winding axis direction of the electrode body faces the cover plate structure. The energy storage device includes spacers (side spacers) that are attached to curved portions, and one end portion of the spacer abuts on a part of the cover plate structure.

Energy storage device and energy storage device production method

A safety device for a storage battery includes a charge-discharge lead one end of which is connected to a positive electrode side of the storage battery and the other end of which is connected to a positive terminal of the storage battery; a pressure-sensing device which deforms in response to the increase of the pressure in the storage battery; and a cutting device for cutting the charge-discharge lead. The cutting device is pressed by the deformation of the pressure-sensing device to cut the charge-discharge lead.

Battery and safety device therefor

Sealed type battery

A safety device of the present invention for a storage battery includes a charge-discharge lead one end of which is connected to a positive electrode side of the storage battery and the other end of which is connected to a positive terminal of the storage battery; a pressure-sensing device which deforms in response to the increase of the pressure in the storage battery; and a cutting device for cutting the charge-discharge lead. The cutting device is pressed by the deformation of the pressure-sensing device to cut the charge-discharge lead.

Growing community of inventors

Kyoto, Japan

Takao Maki