Patent ID: 9088039
Filing Date: 2015-07-21
Classification: H01M,Y02E

Abstract:
1. A rechargeable battery module, comprising: at least two unit cells, each unit cell having a positive electrode terminal and a negative electrode terminal, each unit cell having a side surface disposed crosswise to one direction, the at least two unit cells overlapping at their side surfaces; a positive electrode terminal and a negative electrode terminal, respectively, of different unit cells being coupled to each other and facing each other; and a conductive spacer interposed between the positive electrode terminal and the negative electrode terminal of the respective unit cells and electrically connecting the positive electrode terminal and the negative electrode terminal to each other, wherein: the conductive spacer has a hollow cylindrical shape such that the conductive spacer has an outer circumferential surface and the outer circumferential surface of the conductive spacer is concentric with a circumferential surface of a hole in the spacer, the spacer includes a flange on each end thereof, the flanges are electrically connected to one plane surface of the positive electrode terminal and to one plane surface of the negative electrode terminal that face each other, the flanges include concentric protrusions protruding toward plane surfaces of the positive electrode terminal and the negative electrode terminal, and the protrusions extend in a continuous manner around the positive electrode through hole and the negative electrode through hole, respectively.