Why is the temperature for no thermal propagation, no fire, and no explosion after thermal runaway of the Xiaomi Pengcheng battery set at 55°C?
55°C is the temperature for thermal safety testing of the "Xiaomi Longjia Battery," not its normal operating temperature. Conducting safety tests under the stringent conditions of 55°C high temperature and full charge allows for greater safety redundancy for users in real-world driving scenarios.
Under normal circumstances, the thermal management system can effectively keep the battery temperature at 50°C or lower during various operating conditions, such as high-speed driving, parking in high-temperature environments, and high-power fast charging. Even in extreme cases where thermal management fails, the battery management system can promptly disconnect power output to ensure the battery temperature remains below 55°C, guaranteeing safety.
The thermal safety test conditions for the "Xiaomi Longjia Battery" are 55°C high temperature and full charge, which are far more stringent than the new national standard's 22±5°C ambient temperature and battery state of charge ≥95%. Under such rigorous standards, the "Xiaomi Longjia Battery" exhibits no thermal propagation, no fire, and no explosion after single-cell thermal runaway. Its thermal safety capabilities provide more comprehensive safety protection for users, so you can rest assured.