What are the basic detection methods for 18650 lithium ion batteries

1. Electricity detection: overcharge, overdischarge, external torque circuit, forced discharge, etc. 2. Mechanical inspection: falling body, impact, needle stabbing, vibration, squeezing, acceleration. 3. Heat detection: fire, sand bath, hot plate, thermal shock, oil bath. 4. Environmental testing: depressurization, height, immersion, bacteria resistance, etc. 5. Capacity detection: The 18650 lithium-ion battery capacity detection is based on the full-charge voltage and the set termination voltage as parameters. Because the minimum discharge voltage of the lithium-ion battery is 2.75V, the voltage less than 3V has been tested for the lithium-ion battery It doesn't make sense; the fixed current discharge is generally expressed by how much C, and the lithium ion battery is generally tested with 0.5C discharge. 6. Safety performance testing: The safety performance of lithium-ion batteries can be evaluated qualitatively and quantitatively through calorimetric analysis of the battery thermal runaway process. The heat release rate and cumulative heat release of the battery at different temperatures are parameters to measure the thermal stability of the battery. Many times, single-chip microcomputer projects need to use battery power supply, pure battery power supply! Instead of power-down protection such as the RTC real-time clock! When doing millimeter-wave battery-powered projects, according to the project requirements, the battery samples supplied by the user have been finely tested :1. Start discharging from full charge. Record data every minute! Until the discharge reaches the target value, go down 10 detection points. 2. The maximum discharge current is 2.87A, and the minimum is 1.353A!---The goal is to maintain the output power at 5.5 More than W! 3. The total discharge time is 257 minutes! One data is recorded every minute. 4. The data includes: voltage, current, power, load resistance, and the number of minutes in history. Disclaimer: Some pictures and content of articles published on this site are from On the Internet, if there is any infringement, please contact to delete the previous article: What are the hazards of lead-acid batteries? Can it still be used?