| 摘要 |
PROBLEM TO BE SOLVED: To provide a plate-shaped wiring material for a battery pack suppressing heat generation in the use of a battery to a substantially low level, enhancing weldability and corrosion resistance, and stably manufacturing a clad material, without generating a rippling phenomenon, for example, in the adhesion interface between the clad materials when the clad material is manufactured by rolling, and to provide a battery pack that uses this wiring material. SOLUTION: The battery pack 3 is manufactured by electrically connecting in series four batteries 1 which are a secondary battery such as a nickel-cadmium battery, a lithium ion battery, and a nickel hydrogen battery with the plate-shaped wiring material 2. The plate-shaped wiring material 2 is a nickel/copper/nickel clad material, having a thickness of 0.5 mm or smaller, formed by integrally laminating nickel layers on both sides of a copper layer, the conductivity of the whole clad material is 75% or higher, the ratio of the thickness of the nickel layers on the both sides to the thickness of the whole clad material is 12.5-15%, and the total of the ratios of the thickness of the nickel layers on both sides is 25% or higher. COPYRIGHT: (C)2006,JPO&NCIPI
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