Heating/radiating integrated thermal management system for polymer lithium ion battery

Abstract

The invention discloses a heating / radiating integrated thermal management system for a polymer lithium ion battery. The heating / radiating integrated thermal management system comprises a battery module, the polymer lithium ion battery, an aluminum plastic film, a heating assembly, a phase change plate, a heating circuit board and a heating control system, the battery module is composed of N polymer lithium ion batteries, shells of the polymer lithium ion batteries are packaged through the aluminum plastic film, the heating assembly is arranged in the middle of the aluminum plastic film to be integrated, and the phase change plate is arranged between the polymer lithium ion batteries to absorb heat generated by the batteries. The heating circuit board is in circuit connection with the heating assembly, and the heating control system is arranged on the heating circuit board. According to the invention, the heating assembly and the aluminum plastic film are integrated, so that the polymer lithium ion battery has a heating function, and the phase change plate can realize a heat dissipation function of the battery module, thereby improving the high and low temperature performance of the polymer lithium ion battery and ensuring high-efficiency use of the battery module.

Description

technical field [0001] The patent of the present invention relates to the integration of power lithium-ion battery systems, in particular to a thermal management system integrating heating / radiation of polymer lithium-ion batteries. Background technique [0002] Lithium-ion power batteries have high energy density, high voltage and long cycle life, while polymer lithium-ion batteries have a more flexible structure and are widely used in new energy electric vehicles as power storage and supply systems. In recent years, the requirements for the range of new energy vehicles have become higher and higher, which has led to higher and higher requirements for the energy density of power-type polymer lithium-ion batteries, which indirectly led to the emergence of polymer lithium-ion battery systems due to low temperature. , The frequency of thermal runaway safety accidents that occur in high-temperature environments increases. Therefore, it is imperative to design a more efficient ...

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Problems solved by technology

[0003] In response to the above problems, although many technical solutions have been disclosed, most of the patented technical solutions only involve heat dissipation design or low-temperature heating design, and few technical solutions that integrate low-temperature heating and high-temperature heat dissipation are disclosed.

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