Repeatedly on fire! What is the problem of frequent accidents of new energy electric vehicles?

First of all, it is due to the accident of new energy caused by heat inducement. The so-called thermal trigger, to put it bluntly, is that the external temperature is too high, or the internal battery has poor heat dissipation, and then spontaneous combustion occurs. The reason for this is relatively easy to understand.

For example, battery management systems.

When the temperature reaches 135, the diaphragm begins to melt and the voltage drops; The battery voltage drops rapidly at 150°C; When the temperature reaches 245, the separator collapses completely and the battery catches fire**.

The second is due to the lithium batteries used in new energy vehicles. Therefore, there are some opinions in the industry that the development of power batteries should abandon ternary batteries with relatively low safety and focus on the development of lithium iron phosphate batteries.

Electric Vehicle Resource Network believes that this view is too extreme. As long as we have a little understanding of the thermal runaway process of lithium batteries, we will know that the safety of lithium iron phosphate batteries is only relative, and the protection and design of the overall safety of power batteries are not done well.

And then because of battery technology. In the process of charging and discharging, the internal resistance will heat up rapidly or even short circuit, so most of the heat in the charging and discharging process is generated at the positive electrode with large internal resistance, whether you are nickel-cobalt-aluminum or nickel-cobalt-cobalt-manganese, lithium manganese oxide.

or lithium iron phosphate, which cannot be avoided 100%. When this heat builds up to a certain level, sparks are generated. We have introduced a separator between the positive and negative terminals of the battery for separation to ensure safety.

It is important to know that compared with mainstream car companies, there is still a big gap in the technology accumulation and product control ability of new energy in the field of new energy vehicles. Although the market has prospered after years of national policies, many manufacturers will not bring more reliable and practical products to the market when implementing end products. As a new energy vehicle, whether it is a hybrid vehicle.

Or pure electric vehicles.

Car companies need to go through years of technical public relations and in-depth market research.

Only by launching relevant products can we win market recognition.

The root cause of the frequent accidents of new energy vehicles lies in the battery safety problem, which is mainly reflected in the battery technology and packaging process and battery materials.

This is a technical problem, for the technology is not good, it will definitely be like this, and it is very necessary to pay attention to the technology when driving.

Most of the power batteries used in new energy are powered by lithium batteries, and the development of batteries should abandon ternary batteries with relatively low safety and focus on development. Be sure to do a good job of safety protection and design.

In order to avoid the recurrence of the tragedy, we should also start from ourselves, from the side, and we need to pay attention to itWhen buying an electric car, you must go to a regular big manufacturer to buy itOnly in this way can we better ensure the safety of our lives.

We all know that batteries of different capacities are very easy to cause battery ** if mixed, so we need to pay attention to the need to replace them from the regular manufacturers, and we need to pay attention to the fact that we all know that there are a lot of people who are very convenient when riding electric vehicles, but they do not pay attention to the maintenance of electric vehicles, and pull the cable for electric vehicle charging at will. And when charging with electric vehicles, as long as it is charged, it will not be managed, which is very non-standardized, which is also another major inducement for the battery.

Therefore, we need to pay attention to the use of electric vehicles, we must also check the corresponding manual, only in this way can we better ensure the safety of our lives, at the same time, we all know that the current battery research and development is very rapid, so the charging market should be controlled as much as possible within 8 hours, and must not be charged for too long.

Another point to keep in mind is that in winter, you must not add cold and warm protective gear to electric vehicles at will, because these polymer materials are combustibles, which is very easy to cause tragedy, everyone knows about this, at the same time, we must avoid pushing upstairs to charge electric vehicles in daily life, we all know that there are a lot of facilities in the community are very perfect, I hope everyone can comply with the management of the property, Only in this way can we better ensure the safety of our lives, and we also believe that after a ** incident, we will definitely teach everyone a lesson.

In order to avoid the recurrence of the tragedy, we should put the electric vehicle in a relatively open place to charge, and at the same time choose the electrical appliances regularly, and the power consumption of the charging socket must be within the tolerance range.

We usually can't take the electric car upstairs to charge, we can't charge it for too long when charging, the battery needs to be replaced after a long time, and we must stay away from dangerous goods when charging.

In order to avoid the recurrence of the tragedy, we should usually put the electric vehicle in a relatively open place for charging, and at the same time, the electrical appliances selected should be regular, and the power consumption of the charging socket must be within the carrying range.

We should usually take the electric car to the shop for maintenance and inspection on time, and find all kinds of potential dangers in time; The second is that you can't help the electric car to charge at home, but charge it at the location specified in the community.

In order to avoid the recurrence of the tragedy, when we usually charge electric vehicles, we must pay attention to safety, and we must also operate according to the instructions, and we cannot charge them casually.

Nowadays, the first accidents of new energy vehicles are very frequent. Among them, it covers new energy vehicles of brands such as BYD and Tesla.

Judging from the current situation, more and more consumers like to buy new energy vehicles. However, new energy vehicles can bring a more comfortable driving experience to the driver in the process of driving. But at the same time, there have also been a lot of new energy vehicle accidents, which has made many people have a different view of new energy vehicles.

Nowadays, new energy vehicle accidents are very frequent.

First of all, according to the statistics of new energy vehicle fire data in the first quarter of 2022, we can clearly understand that the number of new energy fire accidents has reached 640, and it has increased by 32% over the same period last year. The most important of these is that in this case, there are an average of more than 7 new energy vehicle accidents per day. As a result, many consumers have begun to worry about the quality of new energy vehicles.

BYD and Tesla's new energy vehicles have seen the first phenomenon

The second is that BYD and Tesla, Li Auto, NIO, and Xiaopeng Motors have all experienced frequent stalling. Moreover, these brands of cars have always been more popular with consumers in the market, so after the occurrence of the ** phenomenon, consumers have some bad opinions about these brand cars. And because of this situation, the sales of these brand cars have declined.

Strict quality assurance is required.

Finally, I personally think that the reason why new energy vehicles have frequent stalls. The main reason is that the quality of your car in the process of making it is not well guaranteed. Therefore, I personally believe that any manufacturer should choose to strictly control the quality in the process of entering this new energy vehicle.

Because only in this way can consumers have a safer driving state in the process of driving new energy vehicles.

At the end of March 2022, the number of new energy vehicles in the country has reached 10,000 units, and the number of pure electric vehicles has reached 10,000 units, accounting for the number of new energy vehicles. With the continuous improvement of the penetration rate of new energy vehicles, cases of spontaneous combustion of automobiles have also occurred frequently, including BYD, Tesla, Xiaopeng Motors, NIO, Li Auto, etc.

Tesla is also often reported to have fires caused by spontaneous combustion, and recently, the Tesla Model S was involved in an accident and suddenly stopped at a scrap yard in Sacramento, USA, three weeks later, the battery compartment of the vehicle. In addition to BYD, Tesla, Xpeng, NIO, and Ideal have all spontaneously combusted. On March 28, 2022, a 2019 Xpeng G3 spontaneously combusted in a community in Longhua District, Shenzhen.

From the scene, a large number of flames erupted from the bottom of the car, accompanied by thick white smoke, and the flames surrounded the entire car.

The reason for new energy vehicles** is related to the battery, but not only the battery. There are many factors that lead to new energy vehicles. At present, the main ones can be summarized as follows:

Including aging of battery components, external collisions, high temperature weather, thermal runaway of batteries, high loads, etc. These include fires and fires caused by electricity, as well as external collisions. Judging from the state and power of the vehicle, we can basically conclude that it is caused by the battery pack itself, not by external forces.

A battery pack is a very complex component, and many aspects can cause thermal runaway of the battery, which can lead to fires and**. When the vehicle battery pack is charged and discharged, it will generate a lot of heat, and if it can't generate a lot of heat as soon as possible, it may cause the battery pack to get out of control. According to the network, the model of the heat dissipation medium used in the battery pack is air, that is, the battery uses an air cooling heat dissipation scheme, and the heat dissipation effect of this scheme is significantly lower than that commonly used in liquid cooling heat dissipation schemes.

New energy vehicles have outstanding advantages in vehicle cost, environmental protection, policies and other aspects, but we cannot ignore the hidden dangers caused by the fact that their products are not yet fully mature. The balance of policy tilt will eventually balance the day, and only car companies and battery companies come up with the comprehensive strength of products that can compete in that time and fuel vehicles.

How frequent are the accidents of new energy vehicles today? This problem occurs for the vast majority of brands. It shows that new energy still needs to continue to develop and innovate and find a suitable development path.

Technical problems with battery carsWith the concept of environmental protection gradually entering people's sight, new energy vehicles have gradually entered people's consumption ranks, and battery cars have become one of the first choices for people to travel; However, because the market is too large, the demand for battery cars is too high, which may lead to certain defects in the technology of battery cars, only for the pursuit of too much output and do not pay attention to the research of battery car technology, which will lead to a series of small problems after many battery cars on the road, and even spontaneous combustion and so on, which is also one of the reasons for the frequent occurrence of battery cars causing fires, and I hope that major manufacturers can reform and develop battery car technology. <>

The driver of the battery car is not operating properlyIn addition to the technical problems of the battery car itself, in fact, the driver's operation problem is also a big problem, the battery car is not like motorcycles and motor vehicles need to obtain a driver's license, relative to motorcycles and motor vehicle drivers, the driving technology and safety awareness of the battery car driver is far from enough, there are often violations of traffic rules, plus do not understand the structure of the electric vehicle, etc., there will be many bad operations, and eventually it will lead to a variety of failures in the battery car, and there will be spontaneous combustion similar to the battery car in serious cases. The phenomenon of causing fires is hoped that the transportation department can carry out more management of battery owners. <>

The surrounding environment causes a fireAlthough there are frequent fires caused by battery cars, this phenomenon is also very related to the environment, such as many fire escapes are debris or bus station roads; There are many flammable and explosive items around the battery car parking, and there are more ignorant children who play around the battery car with lighters or cannonballs, which may cause serious consequences, so I hope that the property management of the community will pay attention to fire safety and regularly inspect and eliminate hidden dangers; It is also necessary to do a good job of protection on the side of the road and on the corner of the street to minimize the danger, even if there is a fire, it can be extinguished in the first place to reduce the damage caused by the fire. <>

Many people don't care about plugging in the charger when charging electric vehicles, and the small fire caused by the charger working for a long time becomes a big fire; The second is that the charging time is too long, resulting in short circuits and other phenomena in some old batteries, and the hot weather in summer can easily cause fires.

It is because of people's weak awareness of safety, and they are placed everywhere, electric vehicles are charged everywhere, the management of community property is not perfect, and they do not pay attention to the maintenance of electric vehicles.

It is because of a series of friction between the elevator and the elevator, and the space in the elevator is relatively small, at this time it is very likely that the electric car will not be able to put down, so it caused a fire in a series of frictions.

For example, if the charging process is not done in a proper way, a short circuit occurs, or the cable is pulled without permission, these can lead to fires.

This is because the air in these rooms is not particularly circulating, and the weather is relatively dry, and if there is a leakage, a fire will occur.

One of the things to keep in mind is the safety factor. Do not put the battery car in the hallway. Most likely, it is the human factor.

Introduction: Electric vehicles are a very convenient means of transportation, many office workers in order not to squeeze the bus, squeeze the subway, and choose to ride electric vehicles to work, so the use of electric vehicles is still very wide, but electric vehicles are not very safe, this year there have been 6462 electric vehicle fire accidents in the country, so what are the specific reasons for electric vehicles? <>

The life of an electric car is still very long, and for office workers to ride an electric car on and off the road every day, so the use rate of electric vehicles is also very high, with the accumulation of time, the number of times the electric vehicle is used more and more, so that some lines inside the electric vehicle are aging, for example, an electric car has a very strong endurance when it is just bought, but with daily use, its endurance can not be maintained for too long, and it is precisely because the frequency of use is too high that the internal circuit of the electric vehicle appears short circuit or poor contact and other problems, more serious will lead to leakage, which is also very dangerous. <>

The battery of the electric car is the most important part, if there is no battery, the electric car is useless, the electric car generally has the strongest battery life, but the electric car is used for a long time, the battery is also prone to problems. And some batteries are not very good because of their own quality, and it is easy to cause short circuits when used for a long time and at high frequencies, resulting in battery leakage, resulting in electric vehicles**; Not only that, if the battery is not installed properly, after a long time of bumps, the battery and the body will rub, and it is easy to malfunction and cause fire. <>

After most electric vehicles are exhausted, they can be fully charged in about 8 hours, if the electric car is fully charged and still not unplugged, then it is easy to cause the battery of the electric vehicle to swell and heat, and in this case, it is easy to cause the battery **, resulting in the electric vehicle**. Therefore, you can set an alarm clock when you are charging normally, and interrupt the charging as soon as the time comes.