Geely GalaxyTT Challenges Battery Thermal Runaway: Chief Engineer Personally Validates 'Smoke-Free' Safety Standard

On September 1, a rare real-world safety test of new-energy vehicles was conducted at a national-level laboratory — Geely GalaxyTT's Chief Engineer sat inside the vehicle to jointly launch a public battery thermal runaway challenge with CATL. Unlike conventional external monitoring tests, this trial adopted a 'human-in-the-loop, real-vehicle testing' approach, elevating industry battery safety verification standards from 'no fire, no explosion' to the far more stringent 'smoke-free' benchmark.

The test strictly followed the procedures outlined in the China Electric Vehicle Fire Safety Index (2026 Edition). A single cell inside the battery pack was deliberately triggered into thermal runaway via localized heating — bypassing external protective structures to directly assess the core safety capability of the battery system. Results showed: no open flame or explosion occurred, nor did thermal runaway propagate to adjacent cells. Leveraging the industry-first NP3.0 thermal runaway protection technology, high-temperature toxic fumes were channeled out of the cabin through a dedicated exhaust duct and then cooled and filtered internally — ensuring zero visible smoke and no perceptible heat intrusion into the occupant compartment throughout the test.

Today, most mainstream BEVs only meet the baseline safety standard of 'no fire, no explosion'. Yet large volumes of high-temperature, toxic smoke generated during thermal runaway can still trigger panic, cause asphyxiation, or impede evacuation — widely regarded by experts as the 'last-mile' challenge in battery safety. Geely Galaxy TT proactively exceeds the upcoming national standard GB38031-2025 (effective July 1, 2026), which mandates only 'no fire, no explosion', by extending validation to 'smoke-free' performance. Crucially, its test conditions far surpass those stipulated in the national standard: ambient and cell temperatures were set at 40°C (vs. 25°C in GB38031-2025), and state-of-charge (SOC) reached 96% (near full charge), significantly amplifying both thermal runaway intensity and propagation risk. Even under these harsher conditions, Geely Galaxy TT achieved all three criteria: no fire, no propagation, and no smoke.

Safety extends beyond the battery alone. Geely Galaxy TT uses lithium iron phosphate (LFP) cells, enhancing intrinsic thermal stability at the chemistry level; its battery pack features a multi-layer composite top cover and bottom armor-grade protection; StarRui AI Cloud Powertrain and intelligent BMS enable 100-Hz millisecond-level cell monitoring and sub-10-ms ultrafast disconnection response for proactive hazard detection. The vehicle is built on the GEA Evo global intelligent NEV architecture, equipped with a 'B'-shaped ultra-high-strength steel crash beam, an 'eight-horizontal-two-vertical' body structure, a sandwich-style sill reinforcement, and a 'character-'mu'-shaped' battery enclosure — bolstered by 26 mounting points to integrate rigid protection between the battery and passenger cabin.