Thermal Insulation Protection between Power Battery Cells

As a premium EV brand under Geely, ZEEKR demands uncompromising battery safety across its high-performance vehicle lineup. AG-ST-GF Aerogel Glass Fiber Pad was selected as the inter-cell thermal insulation material in ZEEKR's power battery system, targeting both safety and lightweight performance. ZEEKR's battery packs operate at high charge-discharge rates, generating significant inter-cell heat. Without effective insulation, a single failing cell can trigger chain thermal runaway within seconds. AG-ST-GF achieves 0.020 W/(m·K) thermal conductivity with just 3-5mm thickness, far outperforming conventional polymer foam separators. Its glass fiber composite structure maintains dimensional stability under continuous module compression, ensuring consistent thermal resistance throughout the battery pack's service life. The slim, flexible profile integrates into ZEEKR's compact architecture without design modifications, supporting automated assembly processes. AG-ST-GF reduces inter-cell temperature differentials, delays thermal runaway propagation, enhances pack fireproof stability, and extends overall battery service life, meeting ZEEKR's strict standards for EV safety and lightweight engineering.