Energy storage battery is a type of battery that can store electrical energy and release it when needed.  
This type of battery has a wide range of applications in portable devices, electric vehicles, aerospace, power networks, and other fields. The energy storage batteries in the field of portable devices are mainly lithium batteries, which have advantages such as high energy density, long lifespan, and environmental protection. The energy storage batteries in the field of electric vehicles are mainly lithium iron phosphate batteries, which have advantages such as high safety, long lifespan, and good cycling performance. The energy storage batteries in the aerospace field require higher requirements, such as high energy density, high safety, and long lifespan.  
In addition to the aforementioned fields, energy storage batteries also have extensive applications in the field of power networks. Energy storage batteries in the field of power networks are mainly used for the storage and grid connection of renewable energy, which can improve the stability and reliability of the power system. At the same time, they can also achieve peak shaving and valley filling of electricity, improving the operational efficiency of the power system.  
Overall, energy storage batteries are a very important tool for energy storage and release.