BYD lithium iron phosphate battery
The "electric shock" of automobile manufacturers in the new energy era is nothing new. Ternary lithium battery, sodium-ion battery ......
The only difference is the battery that we are familiar with. In fact, in this car, there is a very important battery that has been overlooked, and that is the lead-acid battery used to start the car.
The battery used for car starting may not be as conspicuous as lithium-ion batteries, but this is also the last disadvantage of improving the performance of the car. As we all know, conventional lead-acid batteries have many drawbacks. And now, BYD has replaced lead-acid batteries with lithium iron phosphate batteries, which can be regarded as making up for one of his major shortcomings.
The pain points of traditional lead-acid batteries.
In fact, the development history of lead-acid batteries is much older than most batteries on the current market, and it belongs to the "old seniority" level.
The lead-acid battery was the first secondary battery to be invented. The basic principle is that a lead-containing and lead-containing lead oxide is used, and a chemical reaction occurs in sulfuric acid to produce an electric current. The battery has the advantages of low cost, easy fabrication, and weak appearance. As a result, traditional lead-acid batteries have not been completely replaced by new batteries and are still on most cars.
Although the number of holdings is very large, it has to be said that many disadvantages of lead-acid batteries have brought a lot of trouble to users.
First of all, lead-acid batteries have a small capacity and are less efficient at charging and discharging, so they must be recharged and replaced regularly. Usually, the capacity of lead-acid batteries is only 1 10 of the power battery, and part of the electrical energy will be lost during charging and discharging, thus reducing its service life.
Typically, lead-acid batteries have a lifespan of only 2-3 years, and their performance deteriorates over the years, requiring frequent replacement. This kind of "pain" of replacing the battery is believed to have been experienced by many veteran drivers.
Secondly, lead-acid batteries also have problems such as liquid leakage and corrosion, which not only have an impact on the environment, but also have great harm to the human body.
The inside of the lead-acid battery is composed of a lead sheet, a lead oxide, and a sulfuric acid solution. If the battery case is cracked or not tightly sealed, it will cause sulfuric acid to leak.
As you can tell from the name, this solution is not easy to mess with.
Sulfuric acid can not only erode the metal parts on the car, but also has great harm to people's eyes and **. In addition, due to the high content of lead, lead is a very toxic heavy metal, once it enters the body, it will cause certain harm to the nervous system, blood, liver, kidneys, etc.
Therefore, the first and disposal of lead-acid batteries is also a major problem, and special equipment and personnel must be available.
In addition, under the conditions of low temperature and long shutdown time, lead-acid batteries are very prone to failure, making it difficult to start the car.
Lead-acid batteries work through temperature-dependent chemical reactions. As the temperature drops, the speed of the chemical reaction also slows down, causing the battery's output voltage and current to drop and not even make the car start.
I think that many car owners in the north have had the feeling of not being able to start in winter.
In addition, lead-acid batteries have the property of self-discharge. The self-discharge rate of lead-acid batteries is very high, with an average monthly loss of about 10%. If the car is idle for a long time, its battery level will be very low, and it may also cause the car to not start.
So many pain points, so many troubles, so many troubles. So, is there a better battery that can replace lead-acid batteries?
The answer is yes, because BYD is leading the way in this field with the advent of its iron-phosphate positive battery.
BYD took the lead in realizing lead-free vehicles, which fundamentally solved the pain points of users.
For lithium-sulfur batteries, I believe many people are no strangers, especially BYD's "blade", which is made of lithium-ion batteries.
The advantages of iron-phosphate batteries are obvious - high capacity, high charge and discharge, and longer battery life.
Compared to ordinary lead-acid batteries, lithium-ion batteries have twice as much capacity and three times faster charging, that is, lithium iron phosphate batteries charge faster and charge faster. At present, BYD has realized a brand new battery that can last a lifetime.
In addition, lithium iron phosphate rechargeable batteries have the advantages of light weight and small size, which can save space in the car to a certain extent.
Compared to conventional lead-acid batteries of 10 kg, the minimum weight of iron-phosphate batteries is only 2 kg. Therefore, lithium iron phosphate cathode materials not only reduce the weight of the vehicle and improve the dynamics of the vehicle, but also provide more possibilities for the optimization of the internal space of the vehicle.
Lithium iron phosphate battery is definitely a lifesaver for users in the north. Lithium iron phosphate cathode materials have high energy storage efficiency at low temperatures, and their application potential at low temperatures far exceeds that of ordinary lead-acid batteries.
In the north, lithium iron phosphate batteries are very adaptable to temperature, will not freeze to death, and will not roll over. After testing, the energy storage capacity of lithium iron phosphate cathode material can still be maintained at a low temperature of -20 to more than 80%. The average lead-acid battery, at a low temperature of -20, will drop its charge to less than 50%.
Therefore, in the cold weather in the north, many car owners will use lithium iron phosphate starting batteries produced by BYD. This battery, which has reached the standard of ordinary batteries, can make the car drive at any time.
The most important thing is that the lithium iron phosphate starter battery is not toxic and safe and environmentally friendly.
Because the raw materials used in lithium iron phosphate power batteries do not contain toxic heavy metals such as lead, and there are no corrosive liquids such as sulfuric acid, lithium iron phosphate power batteries will not harm human health and will not pollute the environment.
In addition, lithium iron phosphate batteries also have good safety, will not appear short circuit, overcharge, overdischarge, overheating and other abnormal conditions, even in high temperature, high pressure, impact, puncture and other harsh environments, will not appear **, smoke and other dangerous conditions. Therefore, the use of lithium iron phosphate as a power battery can make users safer and safer in the process of use.
BYD is at the forefront of the industry and is the first to replace lead-acid batteries in cars with lithium ferrite batteries, which fundamentally solves the problem of consumers.
In other words, BYD will be the first car company in the world to achieve completely lead-free production.
At all costs, just to improve the user experience.
BYD's battery has been replaced with an iron-cobalt-manganese battery, which is really not low.
The lithium iron acid battery is more than five times more expensive than the ordinary lead-acid battery. I made a simple calculation for BYD, BYD's annual sales reached 1 million units, and it would cost hundreds of millions every year.
For BYD, China's largest automaker, their control over production costs is very strict, and the cost of one dollar adds up to an unimaginably large amount of money.
BYD, on the other hand, is at the forefront of the industry, in order to allow consumers to better use their products.
In this case, BYD has been committed to providing better services to customers.
From this point, BYD can see that BYD is really thinking about customers. Earlier, BYD took the lead in promoting the safety cover of the camera to the car. Originally, this kind of small cover would not be noticed by ordinary car companies, but BYD has done it very well.
BYD's lithium-ion battery can also be regarded as a revolutionary invention. Consumers will say goodbye to battery replacement, winter shutdown and other issues, and take the driving experience to a new level.
A lithium iron phosphate starting battery also reflects BYD's performance of environmental protection and public welfare undertakings, and makes its own contribution to China's green ecology.
It is reported that the lithium iron phosphate power battery produced by BYD has been put into use for 6 years, and so far millions of BYD cars have used the power battery, BYD reduces the amount of lead emitted by more than 20,000 tons every year, and reduces the heavy metal pollution of more than 140,000 hectares of land.
In Beijing, BYD signed a Global Cooperation Agreement on Air Quality and Electric Mobility with the United Nations Environment Programme. In addition, BYD was also named one of the "51 Companies That Changed the World" and "United Nations Special Energy Award" by Fortune.
Solving the problem of "the last battery in the car", BYD can be called a "conscientious enterprise", which is not only for consumers, but also for society.
BYD's lithium iron phosphate battery is not only a power, but also an attitude, which represents the future of the automotive industry. This gives us a glimpse of how *** is at the forefront.
Today, the entire industry is under tremendous pressure. Are those car companies the same at home and abroad?