리튬이온 배터리 성능 시험법 소개. Posted by batterymanufactory.com
Lithium battery is a product that requires high quality and high safety. Consumers often do not know the performance of the battery when using it, so the working efficiency of the battery often does not reach the ideal target during use, and sometimes even blind use can cause battery explosions. So understanding the performance of the battery is also crucial. The performance test of Polymer Lithium-ion battery mainly includes voltage, internal resistance, capacity, internal pressure, self-discharge rate, cycle life, sealing performance, safety performance, storage performance, appearance, etc. Others include overcharge, overdischarge, weldability, corrosion resistance sex, etc Method / step 1. Self-discharge test The self-discharge test of lithium-ion battery is: generally use 24-hour self-discharge to quickly test its charge retention capability, discharge the battery to 3.0V at 0.2C, charge to 4.2V at constant current and constant voltage 1C, cut-off current: 1...