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2021-08-23
Engineers often see the terms power lithium battery and energy storage lithium battery, so what is the difference between the two?
The power-type lithium battery is a sprinter who pursues explosive power but average endurance. It can discharge high current, and the discharge rate is generally above 10C, which can achieve instant high current.
Energy storage lithium batteries are marathon runners, who must have enough endurance, but the explosive power requirements are average. It has a large capacity, can be discharged with a normal level of current, and can continue to supply power stably for a long time.
Although they are both lithium batteries, they still have many differences:
The cost of power lithium batteries is much higher than that of energy storage lithium batteries.
Power lithium batteries are often used to drive motors and motors with large current peaks, and energy storage lithium batteries are often used in small current output situations, such as lighting and energy storage.
Regardless of the cost factor, power lithium batteries can be used for energy storage lithium battery applications, but energy storage lithium batteries cannot be used for power lithium battery applications.
The cycle life of power lithium batteries is generally lower than that of energy storage lithium batteries of the same specification.
The self-consumption of power lithium batteries is larger than that of energy storage lithium batteries.
Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.
Engineers need to select the appropriate type of lithium battery according to actual application scenarios.