Design and Experimental Evaluation of Polyimide Film Heater for Enhanced Output Characteristics Through Temperature Control in All-Solid-State Batteries
Abstract
This paper presents a practical thermal control strategy to enhance the output performance of oxide-based all-solid-state batteries (ASSBs), which typically exhibit low ionic conductivity at room temperature. A lightweight polyimide (PI) film heater was designed, fabricated, and integrated into the cell stack to locally maintain the optimal operating temperature range (≈65–75 °C) for electrolyte activation. Unlike previous studies limited to liquid or sulfide-based batteries, this work demonstrates the direct integration and coupled numerical–experimental validation of a PI film heater within oxide-based ASSBs. The proposed design achieves high heating efficiency (~92%) with minimal thickness (
Fields of Study & Subjects
Advanced Battery Materials and Technologies
Dielectric materials and actuators
Advanced Battery Technologies Research
Publication details
- Journal / source
- Energies
- Volume
- 19
- Issue
- 2
- Pages
- 297–297
- Publication date
- 6 January 2026
- Language
- EN