배터리

Isothermal charging/discharging experiment

Type of sample: Coin Cell LiR2032
 IsothermalTests at controlled and constant temperature are called isothermal.Isothermal mode with temperature
set at 40°C
 
Charging/Discharging cycle
Constant current Constant voltage
(CC-CV) – 40 mA from 4.2 V to 3.0 V

The data shows that charging is characterized by a short endotherm followed by a small ExothermicA sample transition or a reaction is exothermic if heat is generated.exothermic reaction while discharging is characterized by a long ExothermicA sample transition or a reaction is exothermic if heat is generated.exothermic reaction. Cycles are reliably repeatable.

The same data was used to calculate the cell efficiency during charging and discharging. 

Battery Power, Heat Flow and Temperature as a Function of Time