Journal of Guangdong University of Technology ›› 2021, Vol. 38 ›› Issue (01): 104-110.doi: 10.12052/gdutxb.200017

• Comprehensive Studies • Previous Articles    

Application of Thermal Conductive Silica Gel/Phase Change Material Composite Components in Thermal Management of Batteries

He Lin, Ke Xiu-fang, Zhang Guo-qing, Li Xin-xi   

  1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2020-01-31 Online:2021-01-25 Published:2020-12-21

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Abstract: The application of a low-temperature thermal conductive silica gel/phase change material composite module in the battery module can effectively solve the problem of phase change material precipitation due to liquefaction, while maintaining the high thermal conductivity and high latent heat value of phase change material. Due to certain elasticity and viscosity of heat-conducting silica gel sheet, the whole system has a certain buffering effect, which reduces the contact thermal resistance between phase-change material and battery, and further improves the heat dissipation performance of the whole system. At 3C discharge rate, the temperature of forced air cooling was 57.99 ℃ compared with 66.63 ℃ of natural cooling. The maximum temperature of PCM(Phase Change Material) cooling mode is 44.78 ℃ and the maximum temperature difference is 3.70 ℃. They were down 32.8 percent and 22.78 percent, respectively. In the 3C discharge rate cycle, the PCM cooling mode battery module has a temperature of 51.45 ℃ after three cycles, which is still within the safe temperature rang.

Key words: polyethylene glycol, contact thermal resistance, heat dissipation performance, temperature difference, cycle

CLC Number: 

  • TM911.3
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