1 results about "Residual mass" patented technology

The application discloses an online estimation method and device for evaporation quantity of lithium battery pole piece coating and drying, which comprises the following steps: obtaining the solvent mass ratio of the pole piece at the entrance of the oven, the total solvent residual mass ratio at the outlet of the oven and the outlet area density, and calculating the total evaporation solvent mass of the pole piece area per unit length; collecting humidity through the temperature and humidity sensors arranged at the air inlet and air outlet of each oven to obtain the absolute humidity of the air inlet and the absolute humidity of the air outlet corresponding to each oven; based on the mass conservation equation, the optimization problem is constructed according to the absolute humidity of the air inlet, the absolute humidity of the air outlet and the change rate of the absolute humidity of the air outlet with time, and the particle swarm optimization algorithm is used to solve the optimization problem to obtain the evaporation quantity per unit time of each oven; the evaporation quantity per unit time and the residence time of the pole piece in the single oven are calculated to obtain the solvent evaporation component of the pole piece in each oven, and the sum of the solvent evaporation components of each oven is equal to the total evaporation solvent mass.