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HiTHIUM Completes World's First Open-Door Large-Scale Fire Test of a 6.25MWh BESS with kAh Battery Cells
HiTHIUM’s 6.25MWh long-duration energy storage system passed extreme open-door fire testing with no explosions, validating safety for higher energy levels in large-scale deployment.
- On Feb. 9, 2026, HiTHIUM completed the world’s first open-door large-scale fire test of its Power 6.25MWh 4h LDES system with kiloampere-hour battery cells in Xiamen, China, under UL Solutions and U.S. Authorities Having Jurisdiction supervision.
- Building on a prior 5MWh trial, HiTHIUM sought to validate the Cell 1175Ah and system-level safety of its Power 6.25MWh system to strengthen global energy storage safety standards.
- Using an intrinsic multi-layer architecture, HiTHIUM tested with container doors fully open, 15 cm container spacing, 100% state of charge, disabled active fire suppression systems, directional venting and 3D airflow channels, dual pressure-relief valves, fire-resistant module covers, and reinforced steel enclosures.
- The test met UL 9540A 2025 and NFPA 855-2026, showing no explosions or debris ejection and the affected container remained structurally intact with stable and controllable safety performance.
- Framed as a milestone, the test systematically verified safety for the 6.25MWh LDES system with kAh cells within the global energy storage safety validation framework, while HiTHIUM plans to prioritize LDES safety and collaborate with industry partners.
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HiTHIUM Completes World's First Open-Door Large-Scale Fire Test of a 6.25MWh BESS with kAh Battery Cells
XIAMEN, China, Feb. 8, 2026 /PRNewswire/ -- Recently, HiTHIUM completed the world's first open-door large-scale fire test of its ∞Power 6.25MWh 4h long-duration energy storage (LDES) system equipped with
·New York, United States
Read Full ArticleHithium completes open-door fire test of 6.25 MWh battery system
Hithium has released results from a large-scale fire safety test of its 6.25 MWh “∞Power” battery energy storage system, with an open-door configuration supervised by UL Solutions to assess thermal runaway risk in 1175 Ah cells under maximum oxygen conditions.From ESS News Hithium has announced the completion of a large-scale fire safety test on its ∞Power 6.25 MWh long-duration energy storage (LDES) system. The testing focused on the company’s …
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