Non-aqueous electrolyte secondary battery

H - Electricity – 01 – M

Patent

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Details

H01M 2/22 (2006.01) B23K 31/02 (2006.01) H01M 2/26 (2006.01) H01M 2/30 (2006.01) H01M 6/10 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2274483

A non-aqueous electric secondary battery especially of a large-size, comprising a highly reliable collector terminal which has an excellent electrical conductivity and hardly break when a nut is fastened with an excessive torque to the external terminal of the collector terminal. The external terminal of the collector terminal is made of a different metal from that of the portion connected to a lead plate led from electrode plates, and these are integrated by solid phase welding or vacuum brazing. Effective examples of solid phase welding of this case are solid phase diffusion welding, explosion welding and friction welding.

Cette invention se rapporte à une batterie électrique secondaire non aqueuse, en particulier de grande taille, qui comprend une borne collectrice hautement fiable, qui possède une excellente conductivité électrique et qui ne risque guère de se rompre lorsqu'un écrou est fixé avec un couple excessif sur l'extrémité externe de la borne collectrice. L'extrémité externe de la borne collectrice est fabriquée en un métal différent de celui de la partie connectée à une plaque de conducteurs s'étendant à partir de plaques électrodes, lesquelles sont intégrées par soudage en phase solide ou par brasage fort sous vide. Des exemples efficaces de ce soudage en phase solide sont le soudage par diffusion en phase solide, le soudage par explosion et le soudage par friction.

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