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Automotive Engineering ›› 2025, Vol. 47 ›› Issue (9): 1773-1781.doi: 10.19562/j.chinasae.qcgc.2025.09.013

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Study on Quasicrystal-Based Solid-State Thermal Diodes and Application in Thermal Management

Jinjia Zhang(),Han Wen,Yong Liu,Ke Wang   

  1. Voyah Automotive Technology Co. ,Ltd. ,Wuhan 430051
  • Received:2025-02-11 Revised:2025-04-03 Online:2025-09-25 Published:2025-09-19
  • Contact: Jinjia Zhang E-mail:h-zhangjj2@voyah.com.cn

Abstract:

Thermal diodes, with unidirectional heat transfer properties, have great potential in the thermal management systems of electric vehicles. In this study, based on a large materials property database, the optimal material combinations are screened to construct high-performance composite solid-state thermal diodes. Through one-dimensional model and finite element simulation, the results show that the thermal rectification ratio of the optimized quasicrystal-based solid-state thermal diode can reach 3.2, significantly improving thermal management efficiency. This research provides key theoretical and practical insights for applying solid-state thermal diodes in electric vehicle thermal management.

Key words: thermal diode, thermal rectification, quasicrystal, heat transfer simulation