Energy storage battery discharge C rate
C is used to represent the battery charging and discharging capacity ratio.
Charge/discharge ratio = charge/discharge current/rated capacity. For example,
if a battery with a rated capacity of 100Ah is discharged at 50A, the discharge
ratio is 0.5C. 1C,2C,0.5C is the discharge rate of the battery, indicating a
measure of how fast the discharge is. The capacity used is discharged in 1 hour,
which is called 1C discharge; After 2 hours of discharge, it is called 1/2=0.5C
discharge. Generally, the capacity of the battery can be detected by different
discharge currents. For 24Ah batteries, the 1C discharge current is 24A and the
0.5C discharge current is 12A. The greater the discharge current. The shorter
the discharge time.
Usually when talking about the scale of an energy storage system, the
maximum power/system capacity of the system will be expressed (KW/KWh), for
example, the scale of an energy storage power station is 500KW/1MWh, where 500KW
refers to the maximum charge and discharge power of the energy storage system,
1MWh refers to the system capacity of the power station, if the rated power of
500KW is discharged, The capacity of the power station is discharged in 2 hours,
and the discharge rate is 0.5C.
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