Patent ID: 9444083
Filing Date: 2016-09-13
CPC Classification: H01M,Y02E

Claim Text:
1. A battery pack comprising: a plurality of battery modules each including a plurality of cells aligned and accommodated in a case, wherein each battery module includes a plurality of battery assemblies accommodated in the case, each battery assembly including a plurality of cells, the plurality of cells are aligned in a same direction and are electrically connected in parallel with each other, the battery modules include a first battery module and a second battery module, the case of the first battery module is a rectangular parallelepiped, the case of the second battery module is a rectangular parallelepiped, at least one side of the case of the first battery module is different from each of sides of the case of the second battery module, the first battery module includes a plurality of first battery assemblies, the second battery module includes a plurality of second battery assemblies, the number of the cells in each first battery assembly is equal to the number of the cells in each second battery assembly, the first battery module and the second battery module are combined with each other such that directions in which cells are aligned in the first and second battery modules are perpendicular to each other to form the battery pack, each cell has an opening portion through which gas generated in the cell is exhausted to the outside, each battery assembly further includes an exhaust duct in communication with the opening portion of each cell, the exhaust duct includes a flat plate disposed at one side of the plurality of cells, the opening portions of the cells are in communication with the exhaust duct via through holes formed in the flat plate, and on the flat plate, interconnects connected to a positive electrode terminal and a negative electrode terminal of the respective cells and to a signal terminal via which a signal for controlling charge and discharge of the cells is input and output are formed.