On May 27, 2025, BYD officially announced that its Blade Battery Series (including conventional version and flash charging version) passed the full test of GB 38031-2025 "Safety Requirements for Power Batteries for Electric Vehicles" in advance, becoming the first batch of battery products that meet the mandatory standards in 2026. Test data shows that under extreme conditions such as needle puncture, overcharging, and high temperature, the thermal runaway warning time of blade batteries exceeds the upper limit of 5 minutes required by the national standard, reaching more than 18 minutes.
Han EV Champion Edition: equipped with the latest flash charging blade battery, the charging time from 10% to 80% is shortened to 15 minutes (800V high-voltage platform), and the CLTC range exceeds 715km;
Seal DM-p: uses hybrid-specific blade batteries, with an energy density of 180Wh/kg and supports 200km pure electric range;
Denza N7: The first dual-gun supercharging technology + blade battery combination, with a charging power of up to 230kW;
Song L mass production version: The new battery solution enables the vehicle to pass the 50-ton heavy truck crushing test and will be launched in Q3;
The flash charging blade battery adopts a honeycomb bionic structure, and the volume utilization rate is increased to 75%;
The low-temperature performance is improved by 20%, and 85% of the power is still released at -30℃;
The BMS system is upgraded to version 5.0 to achieve millisecond-level fault monitoring;
BYD Lian Yubo, president of the Automotive Engineering Research Institute, said: "The passing of the new national standard verifies our full-stack self-developed advantages from battery cells to packs. All 2025 EV models will be equipped with the latest battery system as standard." It is revealed that the modified Tang EV equipped with the new battery has entered the new car announcement of the Ministry of Industry and Information Technology and is expected to be officially released in August.
my country's newly revised GB 38031-2025 "Safety Requirements for Power Batteries for Electric Vehicles" mandatory national standard will be implemented in July 2026. The single-unit test items of this standard have been newly revised to include safety after fast charging cycles, and the battery pack or system test items have been newly revised to include thermal diffusion and bottom impact.
Compared with the 2020 version of the national standard, the newly revised version has raised technical requirements, and the thermal diffusion test has been revised from "providing a thermal event alarm signal 5 minutes before fire or explosion" to "no fire, no explosion (still requires alarm), and smoke does not cause harm to occupants." The new national standard also adds a bottom impact test to examine the protection capabilities of the battery bottom after being impacted. It requires that there be no leakage, shell rupture, fire or explosion, and that the insulation resistance requirements be met.
