EV battery

High-rate lithium battery performance requirements

by：Vglory 2021-03-28

High-rate lithium battery performance requirements (1) Discharge performance The high-rate lithium battery is fully charged at an ambient temperature of 25±5°C, and then cooled or heated to the detection temperature within 30 minutes. The battery is kept at this temperature for 3 hours before discharging. After a temperature test is completed, the battery is placed at 25±5°C for 2 hours and then charged. It is proved that with different nominal magnifications, when detecting at the same magnification, the larger the nominal magnification, the higher the platform. (2) Cycling performance After the high-rate lithium battery is fully charged at an ambient temperature of 25±5℃, put it aside for 10 minutes, discharge to 3.0V at 10.0CmA or nominal rate current, leave it for 10 minutes, repeat the above steps to cycle until the battery is discharged The capacity continues twice ≤80% the discharge capacity in the 3rd week. The test shows that the high-rate lithium battery has a long cycle life and superior high-rate discharge capability. (3) Charging ability Digital batteries generally charge currents of 0.2C, 0.5C; high-rate batteries generally charge currents of 0.5C, 1C, and the maximum can reach 15C, which greatly improves the charging efficiency. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Analysis of 18650 lithium battery and lithium iron phosphate battery

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