What is an energy storage battery?

What is an energy storage battery?

Energy storage batteries

As the name suggests, are battery systems used to store electrical energy. They can convert electrical energy into chemical energy, store charges in batteries, and then release them when needed. Energy storage batteries are usually designed for long-term energy storage and charging/discharging, playing an important role in power grid scheduling, peak load reduction, and energy management. The key characteristics of energy storage batteries are high capacity, long cycle life, and stable performance.

01 Application Scenario

Energy storage batteries are widely used in fields such as power grid energy storage, household energy storage, industrial and commercial energy storage, communication base stations, etc. The design requirements of energy storage batteries mainly focus on optimizing energy density and long-term storage to meet the needs of large capacity and long-term energy storage. Due to the fact that the vast majority of energy storage devices in energy storage batteries do not require movement, lithium energy storage batteries do not have a direct requirement for energy density; Different energy storage scenarios have different requirements for power density; In terms of battery materials, attention should be paid to factors such as expansion rate, energy density, and uniformity of electrode material performance, in order to pursue the long service life and low cost of the entire energy storage equipment.

02 System composition

The energy storage battery system mainly consists of battery packs, battery management systems (BMS), energy management systems (EMS), energy storage inverters (PCS), and other electrical equipment. In the cost composition of energy storage systems, batteries are an important component, accounting for 60% of the cost; Next are energy storage inverters, accounting for 20%, EMS (energy management system) costs accounting for 10%, BMS (battery management system) costs accounting for 5%, and others accounting for 5%.