China is set to implement the world’s most stringent safety standards for electric vehicle (EV) batteries with a new regulation, set to take effect on July 1, 2026. The regulation, known as GB38031-2025 Safety Requirements for Power Batteries of Electric Vehicles, announced by the Ministry of Industry and Information Technology, introduces groundbreaking measures aimed at preventing fire and explosion hazards, even in the event of internal thermal runaway.
The most significant change in the updated regulation is the thermal diffusion test requirement. Unlike the previous standard, which only mandated a warning signal five minutes before a fire or explosion could occur, the new regulation stipulates that batteries must not catch fire or explode—even if thermal runaway happens. Additionally, any smoke generated during such an event must not pose a threat to vehicle occupants.
This new safety standard sets a global benchmark for EV battery safety, marking a significant leap in the industry’s efforts to ensure safer, more reliable electric vehicles. By addressing the risk of thermal runaway, China is positioning itself as a leader in EV safety innovation, setting a high bar for manufacturers worldwide.
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