The energy storage system refers to a system that stores energy such as energy and other forms through different media, and releases it when necessary.

According to the different storage methods, it can be divided into chemical energy storage and physical energy storage. Chemical energy storage includes hydrogen, hydrogen hydrocarbons, hydrocarbons, and electrochemical energy storage methods. Electrochemical energy storage includes lithium -ion batteries, liquid stream batteries, lead batteries and sodium -based batteries. Physical energy storage includes pump storage, compressed air storage, flywheel energy storage and energy storage.

As the most currently used energy storage method, lithium -ion batteries have the advantages of high energy density, fast response rate, and long discharge time. The disadvantages are higher prices and risk of fever. It is expected to be the main way for energy storage systems in the future.

Lithium -ion batteries are divided according to raw materials. The mainstream types include lithium iron phosphate and ternary lithium. According to the use, it can be divided into energy storage lithium batteries and power lithium batteries. The energy storage lithium battery, as the name suggests, is mainly used on the lithium battery on the energy storage system, and the power lithium battery is used in the new energy vehicle industry. In contrast, energy storage lithium batteries generally emphasize longevity and safety, while power lithium batteries emphasize high energy ratio.

For the energy storage system of lithium ion battery, different application scenarios can be divided into three categories:

The large -scale energy storage system supporting the power grid has a large capacity;

Industrial and commercial energy storage systems have a small capacity and can be used for spare power supply for shopping malls, data centers, etc.

The mobile energy storage and energy storage system, as a temporary electricity preservation measure, can cope with temporary maintenance and emergency power supply at high speed.