Beijing electric bicycle group standard revision will take effect on June 19, strengthening battery safety requirements

News on June 12, according to the news released by the official website of the Beijing Municipal Bureau of Market Supervision, the Beijing Electric Bicycle Group Standard "Technical Specifications for Lithium-Ion Power Battery Packs for Electric Bicycles" has been revised and will be officially released on June 19 Take effect. The revision of this standard aims to improve the safety and stability of lithium batteries used in electric bicycles to reduce the risk of explosions, fires and other accidents caused by battery problems.

The new version of this technical standard adds 19 new technical requirements and supplements and improves 20 related requirements. Some of them are included in the form of official standards for the first time in China. According to the editor's understanding, these new requirements include the mutual recognition and collaborative identification function between the battery pack and the vehicle, which can prevent users from replacing unsuitable battery packs at will, thereby solving the problem of incompatibility between the battery and the vehicle. In addition, it also includes battery (single) thermal abuse and acupuncture testing items, which can detect whether the battery's separator will rupture after high temperature or collision, causing internal short circuit or overheating. In addition, the new standard also requires that the battery pack should alarm in time when it overheats. When the internal temperature of the battery pack or the temperature of a certain battery reaches 80°C, the vehicle or battery pack should sound an alarm within 30 seconds to remind electric bicycle users. Take safety measures.

In addition, the newly revised technical standards also clarify the functions of the battery management system (BMS), and refine the data upload function, free drop and other test methods. In addition, the standard also adds safety items such as battery pack handle strength and salt spray, and improves the stability performance requirements for batteries (single cells). Technically, the new standard takes the lead in applying the mutual recognition and collaborative identification function of battery packs and charging devices.

According to the relevant person in charge of the Beijing Municipal Market Supervision Bureau, Beijing will also implement an electric bicycle product catalog system and include new technical indicators related to safety in the newly revised technical standards into the scope of catalog acceptance. This measure aims to further ensure the safe use of electric bicycles on the market and enhance consumers’ purchasing confidence.

The above is the detailed content of Beijing electric bicycle group standard revision will take effect on June 19, strengthening battery safety requirements. For more information, please follow other related articles on the PHP Chinese website!