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Sugar baby Enters midsummer, and new power cars are on fire. On June 26, a fire broke out in Xiangyang, Hubei Province. An open flame was sprayed out at the bottom of the car, accompanied by a large number of smoke. On June 30, a Wuling Hongguang New Power Car caught fire while charging at the parking lot in Yixin City, Haikou, Hainan, and an explosion occurred during the burning process. On July 5, a Shanghai Yihuai The P7 caught fire. First, the car was covered with white smoke, and then it became more and more intense, and it began to burn…
Data released by the Ministry of Emergency Management showed that in the first quarter of 2022, a total of 640 new-powered car fires were reported, an increase of 32% over the same period last year, higher than the average increase of 8.8% of the road situation. After conversion, more than 7 new-powered car fires occurred day by day.
The probability of fireSugar daddy is less than fuelSugar daddycar
Why is the recent new energy disaster changing? It is clear that the application temperature affects the safety of the steel battery. Sugar baby is the high time for electric cars to catch fire. Unhealthy weather such as high temperatures and storms in summer can easily cause spontaneous combustion of electric cars. At the same time, data from the Ministry of Public Security showed that as of the end of June, the number of new power vehicles in the country had reached 10.01 million. Insiders pointed out that with the rapid increase in ownership, new-powered car fires will also increase, which has attracted public attention.
But experts point out that the probability of a new power car ignition is lower than that of a fuel car. According to data from the Ministry of Public Security, as of the end of March 2022, I recently had a knowledge competition program with a doctoral student as the protagonist. The number of new-powered cars in China reached 8.915 million, accounting for 2.90% of the total car volume. From this calculation, the probability of a fire in a new power car is about 0.7 per million. Previously, data showed that the probability of a fire in a fuel car was about 10,000 to 10,000 Song Wei turned around. When he saw the towel coming from the other party, he answered it and said thank you. between 2. Although the probability of fire is not large, it is difficult to catch fire after the new power car catches fire, and subsequent persecution will be greater. “It is importantThe internal short circuit formed by overcharge and the Sugar daddy dendritics leads to spontaneous combustion. At the same time, the internal short circuit and external short circuit formed by the collision can also form combustion. In contrast, the short circuit of the internal circuit of the core can prevent spontaneous combustion through the protection and protection circuit, and once the inside of the core is short-circuited, it is almost impossible to prevent spontaneous combustion. “New Dynamics and Smart Network Automobile IndividualSugar babyLearning Summary 1: Announcer Cao Guangping said.
As of the time of the journalist’s publication, some departments have sent the fire of the above-mentioned vehicles to the car. daddy responded clearly. The car responded that the change did not cause the personnel and surrounding property to be destroyed, and the vehicle was partially damaged; the car responded that the fire broke out and the road surface anomalies (suspectedly scattered parts of the large car behind) collided and supported the bottom, forming a serious damage to the battery pack of the car. href=”https://philippines-sugar.net/”>Sugar babyfire.
battery characteristics
in fact, new power vehiclesSugar baby babyThe fires in cars are more complicated. The Ministry of Emergency Management pointed out that the current fires in new power vehicles include five aspects: aging of battery components, internal collisions, high temperature weather, battery heat loss control, and high load. Among them, more than half of the fire changes caused by the use of fire and electricity, and another important factor is the internal collision, which causes the battery fire. Sugar baby From this point of view, batteries are the main cause of fires in new power cars.
In order to reduce the probability of car spontaneous combustion, many car companies have previously refused to meet the problem.The same choice is to “lock” on the car, that is, to restrict the degree of sustained aviation and charging effectiveness by modifying the French version of the battery management system. Although this can reduce battery spontaneous combustion risks to a certain level, it also affects users’ personal burden.
The power battery is a focus component that supplies power to Sugar daddy electric car, and has been iterating continuously in technology in recent years. The reporter noticed that the blade battery of Biyadi, Guangqi Aion’s cartridge battery, and Changcheng’s Big Yu battery were all marked as “no fire”. For example, the official figure once announced that I have learned it—it has been often criticized. The Mica battery equipped with the FREE pure electric version uses three-dimensional heat isolation technology and can suffer from high temperatures of more than 2,000 degrees. When the battery becomes hot and out of control, the battery pack of FREE can still achieve “no smoke, no fire, no explosion” after 50 days of static installation.
But can the current technical level really make the battery “not catch fire”?
In the “Safety Request for Electric Vehicle Power Battery for Electric Vehicles” implemented on January 1, 2021, a battery system heat expansion and dissipation trial has been added. After the battery unit is heated and deactivated, the battery system will not catch fire or explode within 5 minutes, and reserve a safe escape time for the passengers. Some insiders have shown to reporters that it is not difficult to meet the above standards for the level of power battery technology in my country. “The chemical characteristics of power batteries make it necessary to have a certain probability of fire, which makes it difficult to ensure that the battery is intact and does not catch fire. Today, various vehicles can only reduce the probability of fire occurrence through technical operation, and at the same time, they will fight for more time for personnel to escape and save economy.” The above-mentioned insider pointed out that “Sugar is definitely there since there is a certain degree of interest. The probability of baby’s fire is that car companies should prevent misguiding consumers during their publicity. “
Technical Specifications
In March this year, the Ministry of Industry and Information Technology issued the “2022 Auto Standardization Mission Key Points” pointed out that in terms of power batteries, starting the standard repair task of electric vehicle power batteries safety will be carried out to further improve the power battery heatRemoval of control alarm and safety protection; accelerate the promotion of the series of standard research on remote service and governance of electric vehicles, revise fuel battery and electric vehicles after collision, and ask for safety standards to strengthen the safety of electric vehicles after a fuel battery and electric vehicle collision.
Zhangcheng Automobile President Wang Fengying suggested in March this year that the national level should carry out top-level planning to promote the application of power battery heat-displacement control and protection technology, and promote it to become a necessary installation installation for new power vehicle manufacturers. It also needs to slowly standardize the existing new power vehicle vehicles with power battery heat-displacement control and protection technologySugar baby.
“First, strengthen battery production quality management, second, carry out higher-level system safety design for the battery, third, effectively monitor and prompt alarm for safe battery operation during vehicle application, such as the vehicle itself or charging vehicle for various parameters such as battery temperature. href=”https://philippines-sugar.net/”>Escort monitored and implemented alarms. Fourth, develop better safety battery technology, such as developing solid-state batteries, so that the solid-state electrolysis layer in the battery can isolate the dendrite. She was so painful that she could not get out of bed that day. The man on the business trip suddenly appeared, and the short circuit formed. “Cao Guangping suggested.
It is worth noting that in order to improve the safety of new power automobile applications and effectively reduce the probability of fire, it is not enough to rely on policies and products to truly improve, and fair and standardized applications are also particularly important.
Early, experts said that inadequate fast charging was the cause of spontaneous combustion of new-powered cars. Wang Zidong, deputy secretary of the China Automobile Power Battery Industry Innovation Alliance, reminded: “Today, we have seen electric cars perform fast charging in the hot weather, whic TC:
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