/ Lithium polymer battery for electric vehicle or hybrid electric vehicle

摘要

The present invention relates to a polymer battery, in particular a battery module and a battery pack for supplying power to an electric vehicle or a hybrid electric vehicle, comprising a plastic case for forming a rectangular parallelepiped space part opened therein, and arranged in a transverse direction It covers a plurality of polymer unit cells, plastic spacers sandwiched between unit cells to form a gap therebetween, and a plastic upper cover protruding from a yin-yang output terminal for outputting power by connecting a polymer unit cell to the upper part. According to the present invention, since the air flow for cooling the unit cell is formed by the plastic spacers sandwiched between the unit cells, effective thermal management is achieved, and thus the life of the battery module and the battery pack according to the temperature variation in the unit cell. And overcome performance degradation It doemeun be able, of course, so can be eliminated the structure imposed by the internal pressure to simplify the overall structure it is possible to increase the energy density.