Sanyo Electric Co., Ltd.

Kouichi Satou

Koji Nishio

Ikuo Yonezu

Mitsuzou Nogami

Yoshito Chikano

Kazunari Ookita

Teruhiko Imoto

Kenji Nasako

A method for manufacturing a lithium battery is provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.

Method of manufacturing a lithium battery

A lithium battery and method for manufacturing the lithium battery are provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.

Lithium battery with roughened electrode tab

A heat transfer system comprising a hydrogen supply unit 1, which transfers hydrogen from a hydrogen recovery tube 8 to a hydrogen supply tube 7, and a multiplicity of hydrogen utilization units 2A and 2B which utilize hydrogen supplied from the hydrogen supply tube 7 via its branching tubes 7a and 7b, respectively, and return hydrogen to the hydrogen recovery tube 8 via associated branching tubes 8a and 8b. By the use of the hydrogen supply tube 7 and the hydrogen recovery tube 8 having large volumetric capacities and filled with hydrogen, the hydrogen supply unit 1 and the hydrogen utilization units 2A and 2B may operate independently, without being synchronized one other.

Heat transfer system utilizing hydrogen absorbing metals

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Itami, Japan

Kouichi Satou