Will frequent fast charging damage the battery life?

Frequent fast charging will have a certain degree of impact on the batteries currently carried in electric vehicles. The degree of impact varies depending on the type of battery. At present, lithium batteries and lead-acid batteries are commonly used in electric vehicles. Among them, lithium batteries also include lithium iron phosphate batteries and ternary lithium batteries. Different types of batteries must be decomposed differently. Lead-acid batteries are currently used in mini-electric vehicles. Generally, the fast charging mode is divided into three stages, constant current, constant voltage, and trickle charging. Because the current and voltage of fast charging are too large, the heating of the battery will inevitably reduce the electrolyte inside the battery, resulting in a reduction in capacity and continuous driving mileage. Lithium batteries have lighter weight and higher energy density, and are currently commonly used battery products in most electric vehicles. Lithium battery is a device that generates electrical energy through chemical reaction. When fast charging, there will be a large current and voltage input in an instant. Frequent use of fast charging will reduce the reduction ability of the battery, thereby reducing the number of cycles of charging and discharging, and causing a certain s damage. Regarding the lithium iron phosphate battery, the number of cycles will decrease at low temperatures, resulting in a decrease in battery capacity. It has a relatively low density. If it is fast-charged, it will be worse, and the driving range will decrease. The low temperature has little effect on the ternary lithium battery. On the contrary, it will exhibit unstable characteristics at high temperatures. For example, if a large current input is used when the external temperature exceeds a certain range, it may cause a battery in the battery pack to overheat And lead to the phenomenon of thermal failure in the long run. In comparison between the two, in the fast charge mode, the safety of the lithium iron phosphate battery is relatively high. This is due to its lower energy density and less impact on the battery core in the fast charge mode. However, the ternary lithium battery has a smaller volume and a higher density. It is precisely because of its active chemical properties that it is easier to oxidize with oxygen in the air. When the charging temperature is higher than a certain percentage of the specified range, it is easy to Burning occurs. Therefore, in the fast charge mode, the impact on the core of the ternary lithium battery is greater. However, pure electric passenger cars are more safe when charging due to their smaller battery size, higher density, and more stringent battery protection and charging safety. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Introduction to the use of lithium battery protection board