By the end of December 2018, the capacity of globally-operated energy storage projects were approximately 180.9GW, an increase of 3% compared with last year. Among them, the capacity of electrochemical energy storage was 6.5GW, an increase of 121% of last year. Among the cumulative installed capacity of electrochemical energy storage, lithium-ion batteries accounted for 86%, sodium-sulfur batteries accounted for 6%, lead acid batteries accounted for 6%, flow batteries accounted for 1%.
Compared with power batteries, energy storage applications place more emphasis on "high safety, long life, and low cost" of batteries. So in the future, which battery technology is more suitable for the energy storage market? Here are some key features of different batteries.
Lead acid battery
Short life cycle; low energy density; not enviornmrntally-friendly.
Li-ion battery
Deep life cycle; high energy density; enviornmentally-friendly; wide operating temperature; excellent performance and safety;(especially LFP)
Undoubtedly, Li-ion battery has its unique advantages compared with other batteries. Excellent safety, energy density and cycle life of batteries are always taken into consideration in the ESS area. Besides, some extra features, such as enviornmentally-friendly,etc. are preferred by thousands of people, which will reach people's max. and ideal expectation.
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