AutoBeta(AutoBeta.net)07/05 Report--

On July 5, a Xiaopeng P7 caught fire on the road in Baoshan District, Shanghai. As can be seen from the exposed video, the car caught fire on the chassis of the head. at first, the vehicle kept emitting white smoke and intensified until it turned into a raging fire. Subsequently, firefighters arrived at the scene to put out the fire on the vehicle. Although the final situation of the vehicle was not clear, the front and interior of the vehicle were seriously damaged and basically scrapped. In addition, according to the video of the scene, the vehicle was parked in the middle of the road, so it can be speculated that the driver had sensed that the vehicle was abnormal and left the scene before the accident.

According to media reports, the fire is suspected to be related to the battery pack. At noon on July 5, when the vehicle was driving on the north Shanghai Shopping Center section of Yangchuan Highway in Yangxing Town, Baoshan District, Shanghai, it collided with a foreign body on the road (suspected of scattered parts of a large vehicle in front) and supported the bottom, resulting in serious damage to the battery pack under the car and a fire. However, Xiaopeng official did not release the relevant instructions.

After entering the summer, electric car fire accidents occur frequently. On July 3, a Roewe electric car caught fire on the north-south viaduct in Shanghai, causing flames and smoke, and firefighters were preparing for rescue next to the vehicle. On July 2, a Volkswagen new energy vehicle caught fire while charging, but so far officials have not released the vehicle or the specific reason.

A fire broke out in Lantu FREE, Xiangyang, Hubei province, on June 26th. Pictures taken from the scene showed that the Lantu FREE with a dark green body burned in front of a certain charging pile, and flames were ejected from the chassis, including the engine cover, four car doors and rear doors had been opened, at the same time, more smoke was dispersed, and firefighters had rushed to the scene to fight the fire. In response to this accident, Lantu Automobile officially issued a statement: "at 16:28 on June 26th, an open fire broke out in a Lantu FREE vehicle in Xiangyang, Hubei Province." After the occurrence of the situation, we attached great importance to it and immediately expressed our concern and greetings to the users, provided users with a perfect car travel solution, and quickly set up an ad hoc team to go to the scene to investigate and deal with it. At present, the situation does not cause personnel and surrounding property losses, and the state of the vehicle is partially damaged. We are actively investigating the cause of the accident with our suppliers, and we will announce it in detail as soon as the investigation results are available. Thank you for your concern and support. " However, a week later, Lantu Motor did not disclose the cause of the accident.

Compared with fuel vehicles, the cause of electric vehicle fire is relatively simple, most of which are caused by the battery system under the action of internal and external reasons. Among them, the external factors include overcharging, short circuit, extrusion, high temperature, acupuncture and so on. the internal factors include low purity of cathode material, uneven distribution of electrolyte, burr of electrode, lithium precipitation of negative electrode, impurities on the surface of diaphragm and other internal defects.

Up to now, there have been a lot of electric vehicle fires in the market, but very few car companies admit that fire accidents are caused by poor quality of their own products, so up to now, more than 95% of the fire accidents can only be attributed to external causes. it may be that after the fierce collision of the vehicle, the structure of the battery pack is extruded, resulting in fire and combustion. It is also possible that the battery is heated during charging, or the temperature in the natural environment is high, at this time, if the BMS system can not keep up with the heat dissipation capacity, the line may be short-circuited, which is also widely believed to be the cause of many fire accidents.

So in the event of a fire accident of a new energy vehicle, how to save itself. First of all, we need to provide assistance while ensuring our own safety. In extreme cases, because new energy vehicles are equipped with batteries, they burn much faster than pure fuel vehicles, and it may take only a few minutes from smoke to full combustion, so people in the car need to stay away from the scene quickly. Secondly, if the vehicle does not catch fire, but there has been abnormal, especially smoke, you should get off quickly and stay away from the vehicle, and if you have enough time, you can cut off the power to reduce the loss. But do not rescue the property in the car, life is above all else. Finally, if the vehicle has caught fire, you can put out the fire through the fire extinguisher, but this is of little significance, because the fire accident of the new energy vehicle is very fast, and the general vehicle carries a dry powder fire extinguisher. The fire site of the vehicle is usually located in the front or chassis, so ordinary people simply do not have the ability to put out the fire, so it is necessary to call the fire phone quickly and stay away from the burning vehicle. Because there may be an explosion in a vehicle fire, onlookers may pose a threat to personal safety.

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