New Energy: Li-ion Battery Separators | packaging testing blog cover image
New Energy & Automotive
2025-09-08

New Energy: Li-ion Battery Separators

The Safety Barrier

Battery Separator Films are the only thing preventing the anode and cathode from touching.

- The Challenge: Dendrite growth inside the battery can puncture weak separators, leading to thermal runaway and fires.

Puncture Resistance Validation

KHT adapts its medical precision to the energy sector.

- Solution: Using a specialized Puncture Fixture on the XLW Series, manufacturers can determine the maximum force the film can withstand before rupture.

- High-Speed Simulation: We support various test speeds to simulate different impact scenarios, helping engineers select the most robust separator materials for EV battery packs.

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About Author
Amy Gu | packaging testing engineer and author
Amy Gu
Amy Gu is a Senior Technical Specialist and Product Manager at KHT, with over 8 years of expertise in material mechanics and pharmaceutical packaging validation. Specializing in 'High-Precision Low-Force Testing' and 'Film Property Analysis', Amy possesses deep knowledge of global compliance standards including ChP 2025 (General Chapters 4008, 4015, 4043), USP <1104>, and ASTM D882. She has successfully guided global laboratories in upgrading from basic tensile testing machines to advanced KHT MED Series systems, enabling precise verification of Syringe Gliding Forces and Rubber Stopper Puncture resistance. Her technical leadership focuses on solving the 'Data Integrity' gap in QC labs, advising on critical parameter settings (such as 300mm/min for Heat Seal or 20mm/min for Adaptor Pull-out). Amy is committed to delivering factory-direct, audit-ready testing solutions that ensure your products survive the rigorous global supply chain.

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