What is the reason why lithium-ion batteries does not give?

Author: Iflowpower - Fornitur Portable Power Station

When the strongest cold air, the "arrival", the various electric products are still in the case of "moving", and the RND electric scooter does not unexpected exemplified examples, and the consumer of unknown truth may suspect that they are pitted. Only for a few months, the amount of life is shrinking so much, what is the reason? The temperature affects that most of the electrical steps are used by a lithium battery having a model 18650, wherein 18 indicates a diameter of 18 mm, 65 represents a length of 65 mm, 0 is represented as a cylindrical battery. All lithium ions inside the lithium battery are stored to the positive electrode, and the negative electrode is composed of graphite (carbon).

An electrolyte and diaphragm are included between the positive and negative two poles. The discharge process of the lithium battery is the movement process of lithium ions from the negative electrode to the positive electrode, and the discharge of the lithium battery provides the electric energy required to operate the electric vehicle. In the case where the temperature is lowered, the process of this charge and discharge will slow down.

Therefore, the current of the discharge is small, and the capacity of the battery will become smaller. The indicated operating temperature of the lithium battery is 0-40 ¡ã C, but in fact, when the temperature is less than 25 ¡ã C, a certain degree of performance reduction occurs: the battery capacity is reduced, the discharge speed is slow, the battery output power is small. If the lithium battery can reach the maximum volume value at 25 ¡ã C, 25 ¡ã C is the experimental temperature in various endurance mileage tests.

In fact, due to the difference in material and process of lithium batteries, data is slightly different. Online flowing simple and rude calculation method: standard at 25 ¡ã C, temperature decreases by 1 ¡ã C, with a capacitance by about 1%. That is, in the summer (25 ~ 28 ¡ã), you can run 20 kilometers of car.

Under the 5 ¡ã conditions in winter, only the battery factors can only run 15 kilometers. The battery life caused by temperature is reversible, when the temperature rise, the car's battery life will recover. This shows that the electronic and people are the same, they don't want to move in.