Patent ID: 9023507
Filing Date: 2015-05-05
Classification: H01M,Y02P,Y10T

Abstract:
1. A battery assembly comprising a plurality of cell units that are integrated together, each of the plurality of cell units comprising: a cell including a metal case; and a plastic frame that is integrally formed with an outer surface of the case, wherein the metal case comprises: wherein the cell units are integrated together by having the frames of adjacent ones of the cell units joined together through surfaces thereof, wherein the frame includes ribs disposed on each of both side surfaces of the metal case in a thickness direction thereof, wherein the ribs include: wherein the pair of upper and lower end ribs of the frame of one of the adjacent cell units and the pair of upper and lower end ribs of the frame of another of the adjacent cell units are positioned opposite to each other and are held in contact with each other, and wherein a clearance is provided between the at least one intermediate rib of the frame of said one of the adjacent cell units and the at least one intermediate rib of the frame of said another of the adjacent cell units.