Thermochromic Gires-Tournois Resonators with Tellurium for Battery Thermal Runaway Warning.

ABSTRACT: Effective temperature monitoring is crucial for preventing battery fires caused by thermal runaway, ensuring human safety, and providing timely warnings. While thermochromic materials offer intuitive, real-time temperature visualization, their slow response times remain them unsuitable for battery monitoring. A thermochromic Gires-Tournois (GT) resonator specifically designed for rapid and accurate battery temperature detection in the critical range below 80 °C is introduced, where thermal runaway risks can be effectively mitigated. Central to this design is an ultrathin (10 nm) thermo-responsive tellurium film, paired with a protective glass layer and an underlying metallic mirror. This thermochromic GT resonator exhibits reversible temperature detection over multiple cycles, actively res

SUBMITTER: Kim HM 

PROVIDER: S-EPMC12510277 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature