Gs Yuasa International Ltd.

Robert Boschgmbh

Kenji Kawate

Hirokazu Kambayashi

Martin Gerlach

Yukio Enomoto

Takeshi Kawahara

Tomoko Nishikawa

Takao Maki

Masumi Ogawa

Yusuke Ogawa

Bernhard Gossen

Ottmar Weber

Bernd Feirabend

Uwe Riege

Tim Daske

An energy storage device includes a current collector (negative electrode current collector), electrode body that includes a body portion and a tab projecting from the body portion, and a leading plate (negative electrode leading plate) that connects the current collector and the tab. In the leading plate, first and second plates and facing each other are continuously connected at end portions thereof in the first plate, the current collector is fixed to a first principal surface on the opposite side to the second plate. In the second plate, the tab is fixed to a second principal surface on the opposite side to the first plate.

Energy storage device and energy storage device production method

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.

An energy storage device includes an electrode body in which an electrode is wound, a case that stores the electrode body, and spacers (side spacers) interposed between the case and the electrode body. The spacers each have an opening that exposes a portion of faces of curved portions of the electrode body from one end to the other end of the electrode body in a winding axis direction of the electrode body.

Energy storage device

An energy storage device includes: an electrode assembly; a case accommodating the electrode assembly; a lid plate structure including a lid plate of the case, a current collector electrically connected to a tab provided at the electrode assembly, and an insulating member disposed between the lid plate and the current collector; and a first spacer disposed between an end provided with the tab of the electrode assembly and the lid plate and having a locked portion locked to part of the lid structure.

An energy storage device includes: an electrode assembly; and a container for housing the electrode assembly, wherein an electrolyte solution filling opening from which electrolyte solution is to be filled into the container is formed in a position of a wall portion of the container and facing a tab portion of the electrode assembly.

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Kyoto, Japan

Kenji Kawate