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Through the experimental results, analyze the different rate discharge performance of lithium iron phosphate batteries (Figure)

by:dcfpower     2021-03-27
The experimental results coordinate Figure 1 reflects the different rate discharge performance voltage: u003cpu003eFigure 2 20 Ah lithium iron phosphate battery discharge at different rates Fig.2 Discharging of 20Ah LiFePO4 batery at diferent ratesu003c/pu003e Because of the actual application The battery () may be discharged at different rates. For some battery systems, when the discharge current increases, the discharge capacity of the battery drops rapidly. Therefore, in order to understand the discharge performance of lithium iron phosphate batteries at high rates, the 2OAh lithium iron phosphate batteries were discharged with currents of 0.5C, 1C and 3c respectively. The results are shown in Figure 2. It can be seen from Figure 2 that when the discharge current is increased from 0.5c to 3c, the discharge capacity of the battery drops slightly, but it only drops less than 5%, indicating that the lithium iron phosphate battery still performs better at high rates The discharge performance. At the same time, the 3 C discharge rate can meet the requirements of electric vehicles under high-rate discharge conditions, so that electric vehicles have strong climbing and acceleration capabilities. u003c/pu003e
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