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Polymer lithium battery cycle life test method

by:UFO      2020-05-17
National standard definition: in the environment temperature 20 ℃ under the condition of + 5 ℃, charge at 1 c, when the voltage of the battery to charge limit voltage is 4. 2 v, instead of constant voltage charging until the charging current is equal to or less than 1/20 c, stop charging, shelved 0. 5 h ~ 1 h, and then to 2 to 1 c discharge current voltage. After the 75 v, discharge, shelved 0. 5 h ~ 1 h, and then go to the next recharge cycles, until two consecutive discharge time is less than 36 min, thinks life is terminated.
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