Modularized liquid cooling battery module

Abstract

The invention discloses a modularized liquid cooling battery module, comprising a battery module main body, wherein the battery module main body comprises a plurality of parallelly arranged monomer battery cells; the tab of each monomer battery cell is located on the top surface; the left and the right of the battery module main body are respectively vertically provided with an aluminium materialprotective plate; the front side and the back side of the battery module main body are respectively vertically provided with a liquid cooling plate; the left end and the right end of the liquid cooling plate are respectively fixedly connected with the two aluminium material protective plates; the outer surface of each monomer battery cell is wrapped with a polyimide film; a first insulating plateis arranged between any two adjacent monomer battery cells, and the first insulating plate is adhered with the monomer battery cells by a heat conducting structural adhesive. The modularized liquid cooling battery module disclosed by the invention is scientific and reasonable in structure design, can effectively control the problem of temperature rise of the lithium battery, ensures that a batterycell in a battery module performs high-rate charging and discharging operation, and further ensures the safety performance of the battery cell.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a modular liquid-cooled battery module. Background technique [0002] At present, according to the new energy power system product standards for commercial vehicles issued by the state, the market urgently needs a new energy power system for commercial vehicles, which can meet the requirements of higher grouping rate, short charging time, wide temperature operation, and multi-region coverage. [0003] However, taking the pure electric natural cooling system as an example, due to the inherent limitation of the chemical properties of lithium-ion batteries, under natural cooling conditions, high-rate charging and discharging may easily cause the temperature rise of the battery core to be too high, resulting in a decrease in cycle life; at the same time, the battery itself The operating temperature range also limits the temperature range in which the system can work normally, and c...

AI Technical Summary

Problems solved by technology

[0003] However, taking the pure electric natural cooling system as an example, due to the inherent limitation of the chemical properties of lithium-ion batteries, under natural cooling conditions, high-rate charging and discharging may easily cause the temperature rise of the battery core to be too high, resulting in a decrease in cycle life; at the same time, the battery itself The operating temperature range also limits the temperature range in which the system can work normally, and cannot achieve coverage in multiple regions across the country, thus limiting the use of pure electric power systems

This in turn affects the widespread adoption of battery systems

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