On the 25th, Beijing Fengtai Fire issued a notice saying that on the same day, the electric bicycle in an outdoor independent electric car shed in a small area of Fengtai District, Beijing, did not cause a fire, and the cause of the fire was preliminarily determined to be caused by battery failure.
According to the Beijing Fire and Rescue Corps, in January this year, there were 33 fires of electric bicycles and electric tricycles in Beijing, of which 30 were caused by battery failures, and most of these battery failures were caused by illegal modification of batteries. What are the hazards of using illegally modified electric vehicle batteries? Let's take a look
Replacing or modifying electric vehicle batteries in violation of regulationsThere are a number of risks
In order to get a longer range and higher riding speed, some people like to modify their e-bikes and bicycle batteries, or buy new batteries to replace the original batteries.
He Penglin, deputy director of the Safety Technology Research Center of China Electronics Standardization Institute, introduced that electric bicycle batteries generally include lead-acid batteries, lithium manganese oxide batteries, ternary batteries, lithium ferrous phosphate batteries and other typesThe charging voltage of each type of battery is not exactly the same, and it is easy to mix in the process of modification, which can lead to overcharging, which in turn leads to ***
How to use the battery of an electric bike safely?
1. According to experts, first of all, you should buy from formal channelsPassed CCC compulsory certificationElectric bicycles, use the original battery, do not modify or replace by yourself, if you need to repair or replace, you must go to a regular after-sales service site;
2. The original charger and regular charging cabinet should be used to charge the battery to avoid overcharging caused by mismatched charging voltage;
When not in use for a long time, the battery should be neither empty nor fully charged
4. For old batteries that have been used for many years, especially those that have appearedBulging, leaking, feverThe battery should be replaced in time.
Mandatory national standards for e-bike batteries are about to be introduced
At present, many places, including Beijing, have formulated local technical standards for the safety of lithium-ion batteries for electric bicycles; In addition, China's mandatory national standards are about to be introduced.
In 2022, the mandatory national standard "Safety Technical Specifications for Lithium-ion Batteries for Electric Bicycles", which was drafted by the Ministry of Industry and Information Technology in 2022, has completed the drafting and solicitation of comments, and is currently in the review stage.
He Penglin, deputy director of the Safety Technology Research Center of the China Electronics Standardization Institute, said, "This standard will fill the gap in the technical basis for the safety and quality supervision of lithium-ion batteries for electric bicycles at the national level." After the issuance of the standard, according to the regulations, products and services that do not meet the mandatory standards shall not be produced, sold, imported or provided.
*: China Xiaokang Network*** comprehensive CCTV news client, Beijing market supervision, CCTV finance.
Source: CCTV News.
Editor-in-charge: Tian Yuanhuaying.
Review: Wang Fang.