NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

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.