Lg Chem, Ltd

Chae-Yang Cho

Soon-Ho Ahn

Sung-Jong Kim

Disclosed is an inner case of a battery module assembly in which four battery modules, each having a plurality of cylindrical secondary battery cells (hereinafter, also referred to as 'cells'), are electrically connected in series. The inner case includes a side frame making contact with two facing sides among sides of the battery module assembly, an upper frame making contact with an upper surface of the battery module assembly, and an electrode post electrically connected to an electrode of the battery module assembly and located at a top of the upper frame. Therefore, it is possible to provide an inner case of a stable and economic battery module including a plurality of secondary battery cells.

Inner case of battery module assembly for vehicle's battery pack

Disclosed is a battery module assembly, which includes four battery modules, each having a plurality of cylindrical secondary battery cells (hereinafter, also referred to as 'cells') interposed between an upper frame and a lower frame, wherein among the four battery modules, two battery modules are arranged in parallel, and two battery modules are stacked on the two battery modules arranged in parallel. Therefore, it is possible to provide a stable and economic battery module assembly including a plurality of secondary battery cells.

Battery module assembly for vehicle's battery pack

Disclosed is a case for a vehicle's battery pack. In an aspect of the present disclosure, it is possible to provide a stable and economic case for a battery pack including a plurality of secondary battery cells.

Case for vehicle's battery pack

Disclosed is a battery module assembly for a vehicle's battery pack, which has four battery modules, among which two battery modules are arranged in parallel and two battery modules are stacked and provided on the two battery modules arranged in parallel, wherein cylindrical secondary battery cells respectively included in the battery modules are electrically connected in parallel by means of plates respectively disposed at tops of the two battery modules arranged in parallel, wherein the two battery modules arranged in parallel are electrically connected in parallel by means of a lower metal plate disposed on the two battery modules arranged in parallel, wherein cylindrical secondary battery cells respectively included in the battery modules are electrically connected in parallel by means of metal plates respectively disposed at tops and bottoms of the two battery modules stacked on the two battery modules arranged in parallel, and wherein the four battery modules are electrically connected in series. Therefore, it is possible to provide a stable and economic battery module assembly including a plurality of secondary battery cells.

Disclosed is a battery module, which includes a plurality of cylindrical secondary battery cells (hereinafter, also referred to as 'cells'), an upper frame having a plurality of grooves formed corresponding to an appearance of the cells, the grooves being opened to expose electrodes of the cells outwards, and a lower frame having a plurality of grooves formed corresponding to the appearance of the cells, the grooves being opened to expose electrodes of the cells outwards, wherein cell stoppers are formed at tops of the grooves formed in the upper frame and bottoms of the grooves formed in the lower frame to partially cover the tops and the bottoms of the cells so that the cells are not separated from the grooves. Therefore, it is possible to provide a battery module which may ensure mechanically stable connection when configuring an assembly including a plurality of battery modules.

Growing community of inventors

Daejeon, South Korea

Chae-Yang Cho