Kabushiki Kaisha Toyota Jidoshokki

Toyota Jidosha Kabushiki Kaisha

Eagle Industry Co., Ltd.

Shimpei Mune

Motoaki Okuda

Atsushi Minagata

Hiroyasu Nishihara

Hirokuni Akiyama

Yoshihiro Ogawa

Hiromi Ueda

Yusuke Yamashita

Motoyoshi Okumura

Takayuki Hirose

Toshiaki Iwa

Satoshi Morioka

Satoshi Hamaoka

Taku Inoue

Makoto Mitsuyasu

Norimitsu Akiyoshi

Yushi Kondo

Junichi Iida

Tomoaki Tachibana

A power storage device includes a power storage module, a conductive plate, and a sealing member. The power storage module includes an electrode laminate and a sealing body. The sealing body includes a plurality of resin portions. Metal plates at laminate ends of the electrode laminate each have an exposed surface exposed from the resin portion. The exposed surface includes a contact region and a non-contact region. The sealing member includes a first sealing portion. The first sealing portion is provided along an inner edge of the resin portion to be in contact with the resin portion. The first sealing portion adheres to the conductive plate and the non-contact region and fills a portion between the conductive plate and the non-contact region. The first sealing portion seals a portion between the conductive plate and the exposed surface.

Power storage device

An electricity storage device includes an electrode assembly, a case, a first terminal, and a second terminal. The electrode assembly includes one or more first electrodes and one or more second electrodes, which are stacked alternately with one or more separators in between. The case accommodates the electrode assembly. The first terminal and the second terminal are located on a wall portion of the case. First tabs and second tabs are provided on ends of the first and second electrodes, respectively. A circuit breaker is arranged between the second terminal and the electrode assembly. A part of the first terminal and the first tabs are arranged along the width direction of the electrode assembly, and the circuit breaker and the second tabs are arranged along the width direction of the electrode assembly.

Electricity storage device

A current interruption device includes a deforming plate, a contact plate and a conducting plate which configure a current path. The deforming plate includes one surface on an opposite side from the contact plate facing a first space, a pressure of which is retained to a same pressure as the internal pressure of the casing and the other surface opposed to the contact plate facing a second space, a pressure of which is retained to a same pressure as an external pressure of the casing. When the internal pressure rises above the predetermined level, the second contact portion is separated from the conducting plate by deformation of the deforming plate toward the contacting plate.

Current interruption device and electricity storage device using the current interruption device

An electricity storage device includes an electrode assembly, a case, a safety valve, and a cover member. The case accommodates the electrode assembly. The safety valve is arranged in the case and opens to discharge gas out of the case when an inner pressure of the case exceeds a release pressure. The cover member is arranged in the case opposing the safety valve and includes a flow passage for the gas.

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Kariya, Japan

Shimpei Mune