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The two mandatory national standards, “Safety Requirements for Electric Vehicles” and “Safety Requirements for Power Storage Batteries Used in Electric Vehicles,” have officially come into effect.
time：2026-09-09
Safety requirements for electric vehicles and safety requirements for power batteries for electric vehicles two mandatory national standards are formally implemented, and the core is to comprehensively assess the electrical safety of electric vehicles.
Compared with the old national standard, this upgrade has four major changes: introducing physical "one-click power-off" for the first time, completely replacing the previous power-off mode that relies on software control, and improving the reliability and timeliness of accident rescue. The thermal diffusion test requires upgrading from "alarm 5 minutes before fire" to battery pack without fire or explosion, and the smoke does not cause damage to passengers. In addition, the impact test on the bottom of the whole vehicle and power battery is added, and the safety test after fast charging cycle is added to fully lift the safety bottom line of the electric vehicle.
Experts pointed out that under the new national standard, small and medium-sized vehicle and battery enterprises are under pressure, and industrial resources will continue to be concentrated in the head enterprises with complete thermal safety research and development capabilities.
Change 1: introducing physical "one-click power off" for the first time"
different from traditional fuel vehicle, electric vehicles have high voltage system. When the vehicle encounters extreme collision or sudden accident, whether the high-pressure system can be cut off at the fastest speed is directly related to the personal safety of the drivers and passengers.
Normally, cutting off the high-pressure system circuit mainly depends on the software system of the vehicle. However, when an accident occurs, there is a risk of damage and failure in electronic circuits and software systems.
the new edition of "safety requirements for electric vehicles" defines the "one-click power-off" device as a physical power-off device for the first time, it is also required that the vehicle can respond to this function through the driver's "one Action" (touch or long Press) under the condition of static non-charging and discharging, so as to realize the physical disconnection of the vehicle's high-pressure circuit and block the danger at the source.
Change 2: battery pack no fire or explosion
as the energy core of new energy vehicles, the safety performance of power batteries is also directly related to the safety of drivers and passengers. "Safety requirements of power battery for electric vehicles" tightened the thermal diffusion test on the battery. Through external heating, acupuncture, internal heating and other methods, observe whether the battery pack is on fire or exploded, and record the alarm time of the thermal event.
In the past standard, the technical requirement for battery thermal diffusion test is to provide thermal event alarm signals 5 minutes before fire and explosion. This time, the new national standard will further improve the safety: during the thermal diffusion test, battery pack will not catch fire or explode (the battery unit still needs to be warned when it is out of control of heat), and the flue gas will not cause damage to passengers, therefore, it is called the strictest battery safety standard in history.
Change 3: New vehicle and power battery bottom impact test
during daily driving, the base impact and bottom scraping caused by road gravel, bulge speed bump or foreign matter are common scenarios that cause potential safety hazards of power batteries. In recent years, the power battery fire accidents caused by the bottom impact of new energy vehicles are relatively high. In response to this high-speed situation, two new national standards have added the bottom of the vehicle respectively.Protection requirements, test methods for scraping the bottom of the whole vehicle, impact test on the bottom of the power battery, and it is required that the power battery should not catch fire or explode in both tests, and meet the requirements of insulation resistance.
Among them, the bottom scraping test is that the vehicle collides with a solid hemisphere barrier with a diameter of 15cm at a speed of 35 km/h, simulate the scene where the bottom of the electric vehicle and the front of the protruding obstacles on the road surface scratch when the vehicle is running, and focus on the safety protection of the vehicle to battery pack during the actual operation.
The new bottom impact test examines the protection capability of the bottom of the battery after being impacted. By repeatedly hitting the bottom with a 10kg impact head for 3 times, fly rock, when foreign matters such as ground obstacles strike from under the vehicle, it is required that battery pack do not catch fire, explode, leak or break, and meet the requirements of insulation resistance.
Change 4: Add Security Test after fast charging cycle
fast charging has gradually become the "standard" of electric vehicles ". Safety requirements for power batteries for electric vehicles added safety tests after fast charging cycle to examine the safety of power batteries after long-term fast charging cycle.
It is required that the battery should be tested for external short circuit after 300 fast charge cycles, which should meet the requirements of no fire, no explosion, etc.
Experts pointed out that safety is the top priority in the development of new energy vehicle industry. Two new national standards, "safety requirements for electric vehicles" and "safety requirements for power batteries for electric vehicles", pay attention to vehicle safety and power battery safety respectively, higher threshold requirements are put forward for electric vehicles, and the bottom line of safety requirements for electric vehicles will be built together.
In addition, the new national standard is mainly for newly produced and newly applied for access to electric vehicle products, and vehicles that have been legally purchased and used normally do not need to be replaced.
Cui Dongshu, secretary general of the passenger car market Joint Branch of China Automobile Circulation Association, said that the core orientation of the new national standard for electric vehicles is to abandon the extensive development mode of heavy endurance and light safety, and establish a world-leading electric vehicle safety system, boost consumer confidence and grasp the standard voice. The new national standard will force the industry in an all-round way: the investment in research and development of automobile enterprises will increase, and the cost of battery insulation, temperature control and chassis protection verification will increase. It is expected that small and medium-sized vehicle and battery enterprises will be under pressure, industrial resources continue to be concentrated in head enterprises with complete thermal safety research and development capabilities.
Contact us
Dongguan Juneng New Energy Technology Co., Ltd.
137 5142 6524（Miss Gao）
susiegao@power-ing.com
Xinghuiyuan High tech Industrial Park, Dalang Town, Dongguan City, Guangdong Province
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