Lithium iron phosphate battery module

Abstract

The invention relates to the technical field of new energy batteries, in particular to a lithium iron phosphate battery module which comprises a shell, a plurality of battery cells, a top cover container part, a bottom cover container part, a heat dissipation device and a plurality of heat absorption assemblies, the adjacent battery cells are arranged at intervals and are sequentially arranged in the shell; the heat absorption assembly is attached to the outer wall of the battery cell; the top cover container piece and the bottom cover container piece are fixedly connected to the upper end and the lower end of the shell correspondingly. A top liquid collecting cavity and a bottom liquid collecting cavity are respectively arranged in the top cover container part and the bottom cover container part; the two ends of the heat absorption assembly communicate with the top liquid collection cavity and the bottom liquid collection cavity correspondingly. The heat dissipation device is arranged on the side wall of the shell and communicates with the top liquid collection cavity and the bottom liquid collection cavity. Cooling liquid in the top liquid collection cavity is conveyed into the bottom liquid collection cavity through the heat dissipation device, liquid in the bottom liquid collection cavity and liquid in the heat absorption assembly are forced to flow into the top liquid collection cavity, and therefore the cooling liquid circularly flows.

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