Eliiy Power Co., Ltd

Tomoyuki Yuasa

Keisuke Sawanishi

Atsuhiko Minagawa

Kenichi Matsubuchi

Hirotaka Sato

Yosuke Imamura

A sealed battery of the present invention comprises: an electrode assembly having a multilayered structure in which a positive electrode, a negative electrode, and a separator are layered; and a first clip. The positive electrode has a positive-electrode current collection sheet and a positive-electrode active material layer; and the negative electrode has a negative-electrode current collection sheet and a negative-electrode active material layer. The electrode assembly has the following sections: a positive-electrode extended section which is a layered portion of the positive-electrode current collection sheet and extends from the multilayered structure; and a negative-electrode extended section which is a layered portion of the negative-electrode current collection sheet and extends from the multilayered structure. The first clip is provided in such a way that either one of the positive-electrode extended section and the negative-electrode extended section is sandwiched and fastened between the first plate section and the second plate section; and the first clip has a first gripping opening. The positive-electrode extended section or the negative-electrode extended section fastened by the first clip has a first fold portion formed by folding the current collection sheet by using an end of the first or second plate section at the first gripping opening as a fulcrum point.

Sealed battery, assembled battery, and method for manufacturing sealed battery

A sealed battery according to the present invention includes an electrode assembly including a positive electrode, a negative electrode, and a separator; an electrolyte; a case; a first lead terminal; and a second lead terminal, wherein each of the first and second lead terminals includes an electrode connection section, an external connection section, and a sealing section, the first or the second lead terminal includes a conduction section, the conduction section is provided to be at least partially in contact with an outer surface of the case directly or indirectly, the case has a conductivity or an apparent thermal conductivity of from 10 W/(m·K) to 250 W/(m·K) inclusive, and the electrode assembly and the electrolyte contained in the case have an effective thermal conductivity of from 10 W/(m·K) to 100 W/(m·K) inclusive in a steady state.

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Shinagawa-ku, Japan

Tomoyuki Yuasa