Combining these battery materials together becomes the battery core. Although each design is very different, for a simple understanding, a 1 -mW energy storage system will have about 14,000 batteries (take 20 AH as an example), which is about 10 Tesla electric vehicles. The battery for energy storage systems is much larger than electric vehicles.

At present, in the application scenarios of power grids and electric vehicles, the positive electrode materials of lithium batteries can be divided into three categories: lithium cobaltate (LCO), lithium iron phosphate (LFP) and ternary materials (NMC). Because of the pursuit of CP value, China is mainly based on iron phosphate, commonly known as lithium iron batteries; Japanese Panasonic and South Korea LG/SAMSUNG are three yuan material and lithium three yuan, which makes them very fragrant in the electric vehicle market. In addition to the different material classification, the battery of the same brand will distinguish different specifications and grades to adapt to different application scenarios. If it is not inside, it must be dazzling.