Fast charging affects the life of the battery -Lithium - Ion Battery Equipment

Will frequent fast charging reduce the service life of electric vehicle batteries? -Lithium - Ion Battery Equipment

With the popularization of new energy vehicles, we see more and more people driving pure electric vehicles in the city. The increase in the use of the population has also risen the demand for charging piles. Fast charging has become one of the core needs of many car owners for pure electric vehicles. However, in the actual use process, many car owners are also worried that the multi -frequency fast charging will speed up the loss of power lithium batteries and reduce their service life? So what is the real situation?

Do you damage the battery life frequently?

Frequent fastness will have a certain degree of impact on the current battery equipped by electric vehicles. This is different from the different levels of battery types. At present, electric vehicles are generally equipped with lithium -ion batteries and lead -acid batteries. Among them, lithium -ion batteries also include lithium iron phosphate cells and ternary lithium ion batteries. Different types of batteries should be analyzed.

Lead -acid batteries are currently important in micro -electric vehicles. Generally, fast charging mode is divided into three sections, constant current, constant voltage, and trickle charging. Due to the large current and voltage of fast charging, the battery will inevitably reduce the electrolyte inside the battery, resulting in a decrease in capacity and the continuous mileage continuously becomes smaller.

Lithium -ion batteries are lighter and have a large energy density. They are currently commonly used battery products on most electric vehicles. Lithium -ion battery is an electrical device that appears through chemical reactions. When fast charging is performed, there will be large current and voltage input instantly. Frequent use of fast charging will reduce the ability to restore the battery, thereby reducing the number of cycles of charging and discharge, which causes the battery to cause the battery. Certain damage.(Lithium - Ion Battery Equipment)

For lithium iron phosphate cells, the number of cycles at low temperature will decrease, resulting in a decrease in the battery capacity. It is relatively low in its own density. The low temperature has little effect on the ternary lithium -ion battery. Instead, it will show unstable characteristics at high temperature. For example, if a large current input is used when it exceeds a certain range of the external temperature, it may cause a battery in the battery pack to have a battery in a certain section of a battery in the battery pack. Overheating causes the phenomenon of heat failure in the past.

Compared with the two, in the fast charging mode, the safety of lithium iron phosphate ion batteries is relatively high. This is due to its low energy density and a small impact on the battery core in the fast charge mode. However, the size of the ternary lithium -ion battery is smaller and density is higher. It is precisely because of its lively chemical properties that it is easier to respond to the oxygen oxidation in the air. When the charging temperature is high at a certain proportion of the specified range, Burning is easy to occur. Therefore, in the fast charging mode, the core of the ternary lithium ion battery has a large impact.

However, because the battery is smaller and density, and it is more rigorous in the protection and charging safety of batteries, it is also more safe in charging.

Although fast charging has a certain impact on electric vehicle batteries, the right use can still provide more convenience for car owners. At present, the research and development of fast charging technology has become the core of global car companies.

In the research conducted by technology companies such as my country, Europe and the United States, Israel, etc., the technology of improving charging efficiency and battery life is quite dense. It is reported that the Porsche concept car Missione uses an 800V charging voltage system to enable the vehicle to charge 80%in 15 minutes. Tesla's super charging station only uses 480V DC power in DC fast charging mode, so it can achieve 80%of the 40 -minute charging. Earlier, some foreign media reported that Toshiba developed a new fast -charging battery. R & D personnel claimed that they could be fully 90%of the electricity in 5 minutes, and had a 10 -year life and high -level security. In addition, the latest news shows that a company in the United States studying solid power stated that BMW and Toyota may introduce solid battery technology in the future, which allows the battery life of electric vehicles to reach or even more than 800 kilometers.



Contact Us

24 hours online service