Recently, the sustained hot weather in many parts of the country has had some impact on the safety of the use of new energy vehicles. The Ministry of Emergency Management recently released data showing that in the first quarter of this year, the average daily fire accidents of new energy vehicles exceeded 7 cases, a phenomenon that should be highly concerning. In recent years, the development of new energy vehicles has gained momentum and become the biggest attraction in the automotive industry, gradually entering thousands of households. However, many people still lack sufficient knowledge of the many characteristics of new energy vehicles.
For example, battery performance has a great impact on the performance of new energy vehicles, and the battery is very sensitive to a high or low-temperature working environment. In high temperature, high load, violent collision, and other conditions, once the car power battery fire, easily lead to vehicle spontaneous combustion accident, and fire quickly, extremely difficult to put out, a serious threat to personal safety.
Because of this, it is necessary to prevent problems before they “burn and”, make up for the shortcomings of the power battery in the safety performance, in order to vigorously enhance the safety coefficient of electric vehicles, for new energy vehicles in China to speed up the promotion of popularization to create a good environment.
First of all, the relevant departments should improve the laws and regulations from the source, to fill the regulatory gap. Due to the different characteristics of electric vehicles and fuel vehicles, the application of a large number of new technologies has forced the management tools to keep up. For example, the Ministry of Industry and Information Technology in 2020 to develop the “electric vehicle with power battery safety requirements” focused on the requirements of the battery monomer thermal runaway, the battery system in 5 minutes without fire and explosion, leaving a safe escape time for the occupants.
Secondly, we should encourage manufacturers to increase research and development efforts to continuously improve the safety performance of electric vehicles through technological iterations and upgrades. Fuel car technology development for nearly a century has been more mature, and the room for improvement is getting smaller and smaller. Although the new energy car industry in just a few years of rapid progress, it is undeniable that in many places there are still obvious technical shortcomings or even defects, and the urgent need to makeup, battery fire safety hazards is one of them.
In fact, many car manufacturers and power battery suppliers have long been aware of this, and the pace of technical research has never stopped. Recently, Ningde Time released the “Kirin battery” technology, by adding a liquid cooling plate between the two cells, reducing the heat transfer between the two adjacent cells, thereby reducing the risk of “thermal runaway”, is expected to avoid spontaneous combustion of electric vehicles in high temperature, high load conditions.
In addition, the whole society should strengthen the use of electric vehicle safety knowledge dissemination. Electric car companies should take responsibility for the producer, timely inspection and maintenance of vehicles for consumers, especially power batteries and other key components, through technical upgrades and other means, to eliminate the vehicle safety hazards; consumers should master a certain amount of vehicle safety use of common sense, not illegal use of electricity, usually do a good job of vehicle maintenance work, and pay attention to driving safety.
