Thermal Barrier Materials for Energy Storage Battery Safety

This document investigates thermal barrier materials and solutions to prevent thermal runaway propagation in lithium-ion battery energy storage systems. It begins by highlighting the significance of thermal barriers in mitigating fire risks, citing incidents like the Hainan photovoltaic storage fire. The research employs Fourier's law to analyze heat transfer and determine insulation thickness, using simulation models and experiments. Aerogels, particularly ceramic fiber aerogels, are identified as effective insulation materials due to their low thermal conductivity. Module-level thermal isolation solutions are verified through simulations and tests, demonstrating that proper insulation can prevent cascading thermal runaway. The study concludes that refined thermal barrier design is crucial for enhancing battery safety and system reliability, offering a pathway to safer energy storage technologies.