Lithium battery The power here, to be precise, should be the specific power, which is the charge and discharge power capability of a single cell or the charge and discharge power capability of a unit mass or unit volume of a cell.

　Whether the lithium battery can be charged and discharged with high power has been decided when it is designed. It is also made of lithium iron phosphate or ternary material. Using process methods, changing the thickness of the electrode or adding additives, adjusting the structure of the active material, the properties of the electrolyte, and the properties of the electrode SEI membrane can all serve the purpose of adjusting the battery power performance. In general, power performance and energy density often cannot coexist. If the same material pursues high power, energy density will be partially sacrificed.

　Once the battery cell is produced, its reasonable maximum charge and discharge current has been determined. In addition to adjusting the battery heat dissipation conditions and being able to change its maximum charge and discharge power within a small range, there is little room for further adjustment.

　In addition to specific power, there are several parameters that are equivalent to unit mass or volume, and the battery level can be seen more clearly.