What Is The Lifespan Of Li-SOCl2 Battery?

In a lithium thionyl chloride battery, a lithium chloride film is formed on the surface of the lithium of the negative electrode when there is no load, which inhibits the chemical reaction (ionization) between lithium and electrons, so this battery has less natural discharge than other batteries. The output voltage is 3.6V, which can be maintained at a certain level until the present.

Lithium thionyl chloride batteries are characterized by an output voltage (nominal voltage) of 3.6V, the highest among commercialized disposable batteries. Even with continuous discharge, a substantially constant voltage can be maintained until the power is exhausted. However, it is difficult to obtain a large current in such a battery, and the voltage will drop for a short period of time when the current is first passed, so this situation needs to be considered in the power supply design.