18650 lithium battery 3.7 v

　　How to alleviate the attenuation coefficient of 18650 lithium battery 3.7 v in new energy vehicles

　　The service life of the battery is actually the attenuation coefficient of the battery power. How can the attenuation coefficient of 18650 lithium battery 3.7 v in new energy vehicles be alleviated? Taking ternary lithium batteries as an example, the following aspects are worthy of your attention:

　　1. Working temperature: Lithium batteries are very sensitive to temperature, and their best temperature range is narrow, 0-40°C is more suitable. Excessive temperature is actually harmful to lithium batteries. However, at present, most pure electric vehicles are equipped with relatively advanced automatic temperature control systems, which automatically heat up at low temperatures. At high temperatures, they also have corresponding air-cooled and water-cooled heat dissipation solutions. However, if the operating temperature is indeed too high or too high, Low, I suggest you give pure electric vehicles a rest.

　　2. Battery charging current: What we are talking about here is that fast charging and fast discharging are often said to harm the service life. Let’s talk about fast charging first. Fast discharging is actually very good. No one will turn on the big plug-in switch. Home installation It is also difficult to use modules like gasoline vehicles. As for fast charging, although today's new batteries are much better, the cycle frequency promoted by the manufacturer generally refers to the fast charging frequency, but if you want to appropriately extend the battery life, it is still beneficial to use less fast charging.

　　3. Concentration polarization (SOC): This kind of impact is mainly due to the battery charging state. Lithium batteries do not like the battery charging state and are most suitable for power consumption around 20-80%. In fact, just like our electronic devices, they can be discharged at any time. Charge as you go to avoid running out of battery, which will increase the number of battery cycles appropriately.

　　4. Long-term storage: Long-term storage of lithium batteries will not affect the battery life. This is very simple, that is, the car cannot be stationary for a long time.

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