CLAD MATERIAL FOR BATTERY NEGATIVE ELECTRODE LEAD MATERIAL PROCESS FOR PRODUCTION OF CLAD MATERIAL FOR BATTERY NEGATIVE ELECTRODE LEAD MATERIAL AND BATTERY

摘要

The clad material for the negative electrode lead material is composed of a clad material having a three-layer structure of a first layer composed of pure Ni, a second layer composed of pure Cu, and a third layer composed of pure Ni. The thickness of the first diffusion layer formed between the first layer and the second layer and the thickness of the second diffusion layer formed between the second layer and the third layer are 0.5 占 퐉 or more and 3.5 占 퐉 or less.