Patent ID: 9537126
Date: 2017-01-03
CPC Classifications: H01M,Y02E

Claim:
1. A battery pack comprising: a plurality of battery cells to generate an electric current, the battery cells being connected with leads to supply the generated electric current, wherein at least two of the leads of the battery cells are welded to each other, and each of the leads is formed with a welded connection portion and a shock absorber bent between the welded connection portion and each of the battery cells, wherein the shock absorber includes a first bent portion bent from each of the leads, a second bent portion bent symmetrically to the first bent portion from each of the leads, and a third bent portion connecting the first bent portion and the second bent portion, wherein the first bent portion and the second bent portion are bent obliquely from each of the leads, and the third bent portion is bent horizontally from the first bent portion and the second bent portion, wherein the third bent portion has an obtuse angle with respect to each of the first bent portion and the second bent portion, wherein the first bent portion, the second bent portion, and the third bent portion form a buffer space, and wherein at least one of the first bent portion and the second bent portion becomes dented into the buffer space and the third bent portion remains horizontally level when shock or vibration is applied to the battery pack.