Investigation on performance of battery thermal management system using spray cooling

Abstract

The thermal management system has essential effects on the performance, life, and consistency of lithium-ion batteries. Compared with commonly used cooling methods, spray cooling has excellent performance and is now widely used in electronic equipment, metal processing, laser surgery, and other fields.However, there are few applications of spray cooling in the battery thermal management systems (BTMSs). With the increase of the charge and discharge speed and people's rising attention to the thermal runaway accidents of electric

Experimental investigation of spray cooling performance in non‐boiling zone on rough superhydrophilic/hydrophobic surfaces

“…When the temperature of a semiconductor component exceeds its normal operating range, an increase of 10°C can cause the system reliability to be halved 3 . Therefore, heat dissipation and temperature control have become the key issues that affect the long‐term development of electronic devices and laser technology 4 …”

“…3 Therefore, heat dissipation and temperature control have become the key issues that affect the long-term development of electronic devices and laser technology. 4 Spray cooling is considered as an appropriate technique for high power and high heat flux conditions, with the main advantages including low thermal resistance, large heat dissipation capacity, and good temperature uniformity. When using an atomizing nozzle with water as a cooling medium, the critical heat flux can reach 1000 W/cm 2 when the degree of superheat stays below 60 C. 5 When the pressure is kept constant and the hot surface temperature is lower than the boiling point of the cooling medium, the spray cooling can stay in the nonboiling zone, where the forced convection and the thin liquid film evaporation mainly contribute to the heat transfer process.…”