Customized lithium batteries are battery type energy storage, that is, chemical energy storage. The "lithium battery" here refers to the battery that uses lithium metal or lithium alloy as the anode material and uses non-aqueous electrolyte solution. It is divided into two categories: lithium metal batteries and lithium-ion batteries.

Lithium batteries are widely used in energy storage systems, which are divided into several types, such as Lithium iron phosphate battery, ternary lithium battery, and lithium manganate battery. The single cell voltage of the battery is high, the working temperature range is wide, the specific energy and efficiency are high, and the self discharge rate is low. By adopting protection and balance circuits, stability and lifespan can be improved. Therefore, considering the advantages and disadvantages of various batteries, lithium batteries have become a good choice for energy storage power stations due to their relatively mature industrial chain, stability, reliability, and environmental friendliness.

The application of lithium batteries is mainly customized, especially in the widely used solar photovoltaic power generation off grid energy storage system. In the customization and production of lithium batteries, the advantages are high individual voltage, wide operating temperature range, high specific energy and efficiency, low self discharge rate, and improved stability and lifespan through the use of protection and balance circuits.