METHOD FOR DETERMINING INJECTION MASS OF ELECTROLYTE FOR BATTERY

A method for determining injection mass of electrolyte for a battery includes: determining a total volume Vof pores in a positive electrode active material layer, a negative electrode active material layer, and a separator of the battery; determining a volume Vof electrolyte required by the negative electrode active material layer to ensure battery cycles; determining a volume Vof electrolyte consumed by the battery in a formation process; determining a volume Vof electrolyte consumed by the battery in an injection process; and determining the injection mass of electrolyte for the battery: M=(V+V+V+V)×ρ. The injection mass of electrolyte for the battery is closer to actual optimal injection mass, which improves the accuracy of the electrolyte injection process, provides better electrochemical performance of the battery, and lowers the research and development costs of the battery.