Patent ID: 7951483
Filing Date: 2011-05-31
Classification: H01M,Y02E

Abstract:
1. An assembled battery provided with a frame for holding a plurality of unit cells, each unit cell having a positive electrode at one end thereof and having a negative electrode at the other end, wherein the frame has a first outer frame, an inner frame having a pair of opposing retaining portions holding four unit cells and a single supporting member connected at only a single central portion of each of the retaining portions, and a second outer frame, the plurality of unit cells are disposed on both sides of the inner frame, the first outer frame and the second outer frame are respectively disposed on one side and the other side of the inner frame to be joined to the inner frame such that the unit cells are sandwiched between the first outer frame and the inner frame and between the second outer frame and the inner frame, the electrodes of the unit cells being captured between the retaining portions of the inner frame, and each of the retaining portions of the inner frame being fixed to terminal bus bars and inter-unit cell bus bars for electrically connecting the electrodes of the unit cells and further being fixed to lead wires electrically connected to electrodes of each of the unit cells for individually detecting voltages of each of the respective unit cells.