Lithium battery module integrated with liquid cooling function

Abstract

The invention provides a lithium battery module integrated with a liquid cooling function, the lithium battery module comprises a liquid cooling plate and a bottom plate, the bottom plate is horizontally arranged, the liquid cooling plate is vertically arranged and is vertically connected with the bottom plate, and a plurality of cooling liquid flow channels which are arranged in the length direction of the liquid cooling plate and penetrate through the liquid cooling plate are arranged in the liquid cooling plate at intervals; and a plurality of lithium battery monomers which are arranged side by side are arranged on two sides of the bottom plate in the length direction of the liquid cooling plate, and heat-conducting glue is smeared between two sides of the liquid cooling plate and the lithium battery monomers. By arranging the liquid cooling plate and the heat-conducting glue, the cooling liquid is injected into the cooling liquid flow channel during use, so that a heat-conducting path from the single lithium battery to the liquid cooling plate through the heat-conducting glue and then to the cooling liquid is formed, and heat generated during working of the battery is taken away timely and efficiently; and the heat-conducting glue with high bonding strength and good heat-conducting property is used, on one hand, the structural strength of the whole module can be improved, on the other hand, the heat-conducting property is good, the heat resistance of a heat transfer path is reduced, and therefore the cooling efficiency of the liquid cooling system is improved.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a lithium battery module with an integrated liquid cooling function. Background technique [0002] During the charging and discharging process of the lithium battery, it is best to maintain its own temperature within the range of 20-30°C. When the temperature of the lithium battery exceeds 60°C, the cycle life of the lithium battery will drop sharply, and thermal safety problems may also occur. In addition, due to market and policy incentives, the development of lithium batteries with high energy density has become an urgent need, but at the same time, the heating of batteries under working conditions is becoming more and more obvious. Therefore, in the charging and discharging of lithium batteries, ensuring that the lithium batteries work within a suitable temperature range can effectively prolong the service life and safety of lithium batteries. [0003] The commonly...

AI Technical Summary

Problems solved by technology

Among them, the cooling effect of air cooling is poor, and it is only suitable for lithium batteries with low heat generation; liquid cooling has become the mainstream cooling method in the market, and the liquid cooling plate is generally installed at the bottom of the battery pack or on the narrow side of the battery side. , but the heating and high temperature area of ​​the battery is located in the center of the wide surface of the battery. By setting a liquid cold plate on the narrow surface of the bottom or side of the battery to take away the heat of the battery, the target demand cannot be directly and efficiently achieved.

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