Battery at higher voltage

This sort of damage could possibly occur to a lithium ion battery when it operates at higher voltage, typically above its thermodynamics stability voltage range. Charging at low temperature is one of the main factor that will push the 100% SOC voltage to go beyond its safety region. Therefore, the battery management system must be able to track current voltage during charging and enforce the charging to stop when the terminal voltage crosses the 100% SOC voltage value. The movement rate of the battery terminal voltage depends strongly on temperature, hence you will experience different battery usage time from 100% SOC to 0% SOC for discharging and from 0% SOC to 100% SOC for charging.

Speak Your Mind