Patent ID: 8628875
Filing Date: 2014-01-14
Classification: H01M,Y02E

Abstract:
1. A battery module, comprising: a first battery having a first terminal, the first terminal including a first metal; a second battery having a second terminal, the second terminal including a second metal different from the first metal; and a connecting member electrically connecting the first terminal to the second terminal, the connecting member having a first portion and a second portion, a face of the first portion being joined to a face of the second portion, a nugget zone being disposed where the face of the first portion meets the face of the second portion, the first portion including a third metal, the second portion including a fourth metal, and the fourth metal being different from the third metal, wherein each of the first and second portions of the connecting member includes a first section having a first thickness, a second section having a second thickness different from the first thickness, and a third section having a third thickness different from the second thickness, and wherein the nugget zone is located between the first and second sections of the first portion and the first and second sections of the second portion of the connecting member.