| 摘要 |
PURPOSE: A lithium polymer battery for an electric car or a hybrid electric car is provided to overcome deterioration of life cycle and performance of battery module and battery pack due to temperature deviation inside a unit cell by forming air flow for cooling the unit cell due to a plastic spacer inserted between the unit cells, thereby effectively controlling heat, and simplify overall structure of the battery, thereby increasing energy density by removing a structure which is added by internal pressure, etc. CONSTITUTION: The lithium polymer battery comprises a plastic case (50) having a structure through which external air can pass freely, spacers (70) which are inserted between a plurality of polymer unit cells having a few Ah and distanced each other, and an upper cover (80) on which negative and positive output terminals (81,82) are prominently formed, wherein the negative and positive output terminals (81,82) generate power by connecting the spacers (70) with the polymer unit cells (60) for producing high capacity and high voltage. |
