battery module

Abstract

The invention provides a battery module. The battery module comprises a battery aggregate, a heat-conducting upper cover plate and a cooling plate, wherein the battery aggregate comprises multiple batteries arranged side by side along the length direction; the heat-conducting upper cover plate is located above the battery aggregate; and the cooling plate is fixedly arranged above the heat-conducting upper cover plate. According to the battery module, since the heat-conducting upper cover plate has heat conductivity and the cooling plate is fixedly arranged above the heat-conducting upper coverplate, when the battery module works, the heat-conducting upper cover plate can directly and quickly transfer heat at the top of each battery in the battery aggregate into the cooling plate, and thencooling of each battery in the battery aggregate is realized through the cooling plate. Compared with the prior art that a cooling system is arranged at the bottom of a lower box body, through the arrangement mode of the cooling plate, the heat dissipation efficiency of the battery module is improved, and the service life of each battery can be prolonged beneficially.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery module. Background technique [0002] When the battery module is working, it will generate a lot of heat, so it is usually necessary to install a cooling system (such as a cooling plate) in the battery module to dissipate heat from the battery. The lower box of a traditional battery module is usually made of metal, while the upper cover is made of plastic. Since the thermal conductivity of plastic is lower than that of metal, the cooling system is generally placed at the bottom of the lower box. . However, when the battery module is working, the surface temperature of the electrode terminals on the top of each battery and the top cover sheet near the electrode terminals is the highest, and it takes a certain amount of time for the heat to be transferred to the cooling system at the bottom, so this arrangement of the cooling system The heat dissipation efficiency of the batter...

AI Technical Summary

Problems solved by technology

However, when the battery module is working, the surface temperature of the electrode terminals on the top of each battery and the top cover sheet near the electrode terminals is the highest, and it takes a certain amount of time for the heat to be transferred to the cooling system at the bottom, so this arrangement of the cooling system The heat dissipation efficiency is low, which affects the service life of the battery

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