Energy Storage Battery is a device used to store electrical energy, which can be released to supply the power system or other electrical equipment when needed. It usually consists of multiple battery cells and can store and release electrical energy through charging and discharging.Energy Storage Battery has four advantages: energy storage and balance, peak shaving, improving power system stability, and energy conservation and emission reduction. It has broad application prospects in the fields of power systems and renewable energy, which can improve energy utilization efficiency, reduce energy waste, and promote sustainable development.