The Consistency and Safety of Power Li-Ion Batteries

The consistency tests of power Li-ion batteries were researched about open circuit voltage at 20°C, 40°C and 65°C environment temperatures. The results showed that the poor consistency could affect the safety performance of the batteries. That the higher the environment temperature is, the worse the batteries consistency is. The hidden safety trouble caused by consistency could be eliminated by some methods such as selecting the cell or monitoring circuit.