What Is The Effect Of Different SOC Conditions On The Life Of Lithium Battery?

- Nov 23, 2017-

The cycle times of lithium-ion battery specification are carried out under 100%SOC conditions. The real risk is that the cycle life of lithium-ion battery will increase significantly with the decrease of SOC.

Will be the life of the 100% under the condition of SOC is set to 1, 90%  lithium-ion battery life under the condition of SOC is 1.42, 80%  lithium-ion battery life under the condition of SOC is 2.98, 60% lithium-ion battery life under the condition of SOC is 6.62, 50% lithium-ion battery life under the condition of SOC is 12.28,30%  lithium-ion battery life under the condition of SOC is19.44.

We know that lithium-ion battery has many advantages such as high working voltage, large volume, small volume, light weight, long cycle life, low self-discharge rate, no memory effect and no pollution.

No matter what kind of battery is used in different fields, its operating conditions also is not the same, charge and discharge rate, the use of SOC, if there is a floating discharge DOD, there may be differences, such as some shallow fill light put, others need deep charge deep discharge.

The life of a  lithium-ion battery is a very important measure of quality.

锂电池SOC条件与寿命的关系

26650 battery test curve