Experimental research system and method for thermal management performance of immersed cooling battery

Abstract

The invention discloses an experimental research system and method for thermal management performance of an immersed cooling battery, and the system comprises a master control end, a visual flow channel, an oil pump module, an expansion kettle device, a liquid injection device, a liquid discharge device, a battery charging and discharging control test module, a temperature collection module, a heat dissipation module and a battery pack, the master control end is respectively connected with the oil pump module, the battery charge and discharge control test module, the temperature acquisition module and the heat dissipation module; the visual flow channel is respectively connected with the oil pump module, the heat dissipation module, the liquid injection device, the liquid discharge device and the battery pack; and the oil pump module is connected with the expansion kettle device. The method is a research method applying the system. According to the invention, the immersed cooling heat dissipation characteristics of the battery pack module under the conditions of different battery arrangements and different control strategies can be tested, and the experiment research system and method for the thermal management performance of the immersed cooling battery can be widely applied to the field of lithium ion battery pack research.

Description

technical field [0001] The invention relates to the research field of lithium-ion battery packs, in particular to an experimental research system and method for thermal management performance of immersion cooling batteries. Background technique [0002] Lithium-ion batteries are currently widely used in electric vehicle power storage systems. However, the electrical performance, thermal safety and cycle life of lithium-ion batteries are greatly affected by the operating temperature. Too low an operating temperature will greatly reduce the power performance of the battery. , and long-term high-temperature conditions are likely to cause thermal runaway. The research on the thermal management performance of the immersion cooling system in the lithium-ion battery pack relies more on modeling and simulation in the computer. However, it is impossible to analyze and study the thermal management performance of the immersion cooling system in actual working conditions, and it is als...

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Problems solved by technology

[0002] Lithium-ion batteries are currently widely used in electric vehicle power storage systems. However, the electrical performance, thermal safety and cycle life of lithium-ion batteries are greatly affected by the operating temperature. Too low an operating temperature will greatly reduce the power performance of the battery. , and it is easy to cause thermal runaway in the high temperature state for a long time

The research on the thermal management performance of the immersion cooling system in the lithium-ion battery pack relies more on modeling and simulation in the computer. It is not an effective research method for the thermal management performance of the immersion cooling system, and it is impossible to analyze and study the thermal management performance of the immersion cooling system in actual working conditions, and it is also impossible to study the heat dissipation characteristics of different battery arrangements and different cooling liquids

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