B65G2812/165

SYSTEM FOR HANDLING POWDERED MATERIALS
20250304383 · 2025-10-02 · ·

A method for handling polytetrafluoroethylene (PTFE) powder, the method including receiving PTFE powder into a hopper having a conical section; reducing a sticking force (1) between an inner surface of the conical section of the hopper and the PTFE powder, (2) among particles of the PTFE powder, or both; discharging the PTFE powder from an outlet located near a base of the conical section of the hopper into a transfer channel; applying a pressure differential to the transfer channel to convey the PTFE powder in a dilute phase including a gas and the PTFE powder along the transfer channel; and at an outlet of the transfer channel, separating the PTFE powder from the gas, in which the separated PTFE powder has a particle morphology that is sufficient for dry manufacturing of film battery electrodes.