A battery module structure with its own heating film

Abstract

The invention discloses a battery module structure with a heating film. A plurality of electric cores are arranged in sequence, and a plurality of isolation brackets are installed between adjacent battery cells. Against the battery core, the insulating end plate is located at both ends of the battery cell arrangement direction, the fixed end plate is installed on the side of the insulating end plate away from the multiple battery cells, and the metal side plate is installed on the side of the multiple battery cells along the arrangement direction. On both sides, both ends of the metal side plate are fixedly connected with the fixed end plate, the edge of the metal side plate is bent to form a bent part, the bent part is covered on the outside of multiple cells, and the integrated cover plate is installed on multiple cells with poles The upper cover plate is installed on the side of the integrated cover plate away from multiple batteries; the module in the present invention has its own heating film, which is convenient for heating under low temperature conditions and ensures the service life of the battery module. Isolate and fix the cells, and stabilize multiple cells through metal side plates and fixed end plates, making the module compact in structure and reasonable in design.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a battery module structure with a heating film. Background technique [0002] With the rapid development of the automobile industry, fuel consumption and emission regulations are becoming increasingly stringent. With its advantages of low cost, low fuel consumption, low emission and high power output, the 48V micro-hybrid system has become the focus of research and development by major automobile manufacturers. The 48V system technology has Four main functions: coasting start and stop, energy recovery, electric motor walking and electric crawling. In the field of hybrid vehicles, 48V battery pack systems are mainly used in micro-hybrid or weak-hybrid systems. Under stricter carbon dioxide emission limit pressure, The 48V system has been paid more attention to because of its advantages of increasing effective cost and significantly saving energy and reducing emissions. ...

AI Technical Summary

Problems solved by technology

However, the natural temperature range of the battery is limited, especially in a cold environment, the chemical activity of the battery is reduced, and the performance of the battery is extremely limited, resulting in a significant reduction in the effective capacity of the battery or even being unable to charge, and in severe cases, it will cause irreversible changes in the battery , which seriously affects battery life, so it is inevitable to use a heating device to make the battery work in a suitable temperature range

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