Explain the relevant knowledge of lithium-ion battery discharge rate

The capacity of each battery is a certain amount within a certain period of time, and the discharge rate of the battery means that compared with the conventional discharge, the discharge capacity is several times that of the conventional discharge in the same time. For the energy that can be released under different currents, in general, the battery cells must be tested for their discharge performance under different constant current conditions. How to evaluate the battery magnification (how much is the C multiplier)? When discharging with a current N times the capacity of the battery 1C, and its discharge capacity is more than 85% of the capacity of the battery 1C, we think that the discharge rate of the battery is N times. For example: a 2000mAh battery, when discharging with a 2000mA battery, the discharge time is 60min, if discharging with 60000mA, the discharge time is 1.7min, we think the battery discharge rate is 30 times (30C). Average voltage (V) u003d discharge power (Wh) u0026 pide; discharge current (A) median voltage (V): it can be understood as the voltage value corresponding to 1/2 of the total discharge time. The median voltage can generally be called the discharge platform. The discharge platform is related to the discharge rate (current) of the battery. The higher the discharge rate, the lower the discharge platform voltage. It may be determined by calculating the battery discharge energy (Wh)/discharge capacity (Ah) Its discharge platform. So what are the discharge rates of lithium-ion batteries? At present, the maximum rate of discharge rate of lithium-ion battery seen in the market has a discharge rate of 120C. As for the minimum rate, there is no limit, because lithium-ion battery discharge always exists. Generally speaking, the discharge rate below 1C is low-power Normal discharge is mostly the discharge requirement of sensitive and compact electronic wearable devices, such as 0.1C, 0.2C, 0.5C, and so on. That is to say, the range of discharge rate of lithium ion battery is currently below 120C, and the required discharge rate battery can be customized within the range according to actual needs. That is to say, the discharge rate of lithium-ion batteries has two major categories: 1C to 120C and low current below 1C. 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: Why do lithium-ion batteries need to protect the board and lead-acid batteries not to protect the board?