What are the reasons for the difference between the actual and theoretical life of lithium batteries?

In General, the life of lithium-ion batteries is determined at the moment when the batteries are finished. The life of the batteries is determined by the specific characteristics of their materials and structures. The life of the batteries calculated only according to the materials and structures is called the theoretical life. However, the actual life of the lithium-ion batteries in work is often shown as the actual life, which is generally less than the theoretical life. The degree of actual life not reaching the theoretical life is caused by the non-working loss of capacity.

The non-working loss by the following factors:

1, the lithium ion battery side effects,

2, lithium ion battery irreversible of active material consumption,

3, for large lithium ion battery, battery working current is big, slow heat, easy to damage to the battery structure.

4, if the Lithium electricity Pool additional security protection measures, provided by the lithium battery power is needed to maintain.

Lithium battery capacity loss in the process of lithium battery charge and discharge and the self-discharge performance:

1, with the increase of cycling times, charging time reduced. Lithium battery charging platform in 3.7 V ~ 4.2 V, the stage of filling the capacity of more than 90% of the total charge, with the increase of cycling times, voltage rise speed, charging capacity reduces.

2, lithium-ion battery discharge platform in 4.1 V ~ 3.6 V, the stage discharge capacity more than 90% of the total capacity, with the increase of cycling times, lithium-ion battery discharge platform, discharge capacity decreases.

3, total electricity capacity of lithium battery of lithium battery self-discharge ratio increased with the increase of cycling times increased, but lower the lithium battery discharge platform to accelerate.

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