Gs Yuasa International Ltd.

Kenji Kouno

Masakazu Tsutsumi

Jun Nakamura

Shinsuke Yoshitake

Katsuhiko Okamoto

Takuma Tonari

Hajime Kawamoto

An electric storage device includes an electrode assembly, a case that includes a defining wall and houses the electrode assembly, a sealing member that is arranged on the defining wall, and a conductive member that is electrically connected to the electrode assembly, the conductive member being supported by the sealing member. At least a portion of the defining wall where the sealing member is arranged includes an aluminum-based metallic material. The sealing member includes a material that is softer than the material for the at least a portion of the defining wall where the sealing member is arranged. The sealing member includes polyphenylene sulfide (PPS) resin and an elastomer. The elastomer is contained in an amount of 2% to 20% by weight. The conductive member is crimped in such a manner that the sealing member is pressed against the defining wall.

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Kyoto, Japan

Kenji Kouno