Geely Xingyue New Energy Vehicle Battery Cell Thermal Protection with AG-ST-GF Aerogel Sheet

As new energy passenger vehicles push toward higher energy density battery packs, managing heat propagation between individual cells becomes a fundamental safety requirement. Geely's Xingyue new energy vehicle platform selected AG-ST-GF Aerogel Glass Fiber Thermal Insulation Sheets for cell-to-cell thermal barrier applications within its power battery system.Battery Pack Thermal Runaway RiskHigh-density battery packs in performance-oriented NEVs generate significant heat during fast charging and high-power discharge. Without adequate inter-cell insulation, heat from a single failing cell can transfer to adjacent cells within seconds, initiating a chain thermal runaway event. The insulation material must perform reliably within the 3–5mm gaps between cells while surviving thousands of thermal cycles over the vehicle's service life.Material AdvantagesAG-ST-GF achieves a thermal conductivity of 0.020 W/(m·K), significantly lower than conventional polymer foam separators. Its glass fiber composite structure maintains dimensional stability under sustained compression within the battery module, preventing gap formation that would reduce thermal resistance over time. The material meets flame retardancy requirements under UL94 V-0 classification and remains stable across the operating temperature range of lithium battery systems.Design CompatibilityThe slim, flexible form factor of AG-ST-GF integrates seamlessly into Geely's compact battery pack architecture. Its consistent thickness tolerance supports uniform cell compression within modules, contributing to balanced electrochemical performance across the pack. The material's compatibility with automated assembly processes supported efficient integration into Geely's production workflow without requiring modifications to existing battery pack assembly lines.This application demonstrates how advanced aerogel materials are becoming a standard component in next-generation NEV battery systems, where the combination of