Patent ID: 9065124
Filing Date: 2015-06-23
Classification: H01M,Y02E

Abstract:
1. A battery pack comprising a plurality of battery cells and a connecting metallic plate connecting an electrode of one of the battery cells to an electrode of another one of the battery cells, wherein the connecting metallic plate is disposed on a positive electrode of the one of the battery cells and a negative electrode of said another one of the battery cells, and the connecting metallic plate and each of the positive and negative electrodes are fixed to each other to form a lap weld joint by an arc spot welding, wherein the connecting metallic plate is comprised of copper, and each of the positive and negative electrodes is comprised of one of high carbon steel and low carbon steel, and is plated with nickel so that the connecting metallic plate and each of the positive and negative electrodes are fixed to each other by the arc spot welding through the nickel.