In the past, due to the small size of the energy storage industry and the fact that it has not yet entered a comprehensive economic period, the energy storage business of various enterprises accounted for a relatively low proportion and the business volume was small. In recent years, with the reduction of industrial costs and the promotion of demand, the energy storage business has Make rapid progress. Energy storage battery is the most potential development field of lithium battery at present, which has the advantages of less influence by geographical conditions and economical efficiency.
In terms of structure type, energy storage batteries mainly include lithium-ion batteries, lead batteries and sodium-sulfur batteries. Due to the characteristics of long life, high energy density, and strong environmental adaptability, lithium-ion energy storage batteries have gradually become the main power batteries for electrochemical energy storage. The mainstream battery types of energy storage batteries are lithium iron phosphate batteries and ternary lithium batteries. The battery cell voltage is high, the operating temperature range is wide, the energy density and efficiency are high, and the self-discharge rate is low. The protection and balance circuit can improve safety. and longevity. 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 characteristics of energy storage lithium batteries are mainly manifested in several aspects: first, large capacity; second, good stability; third, the capacity of energy storage lithium batteries is compared with energy storage lead-acid batteries, the same volume of batteries, lithium battery capacity ratio Lead acid batteries have much more capacity. With the maturity of commercialization routes and the continuous reduction of costs, lithium-ion batteries are gradually replacing low-cost lead-acid batteries and are used in energy storage batteries, which are superior in performance.
As costs continue to drop and commercial applications become more mature, the advantages of electrochemical energy storage technology become more and more obvious, and it has gradually become the mainstream of newly installed energy storage capacity. In the future, with the further emergence of the scale effect of the lithium battery industry, there is still a lot of room for cost reduction, and the development prospect is broad.