NOVELTY - The method involves evacuating a deaerating tank (6) to which an outlet of a mohno pump (4) is connected to a vacuum pump (7) such that a conduit system at deaerating tank side of an airtight line is formed at a contact portion of a mohno pump closed system with the airtight line. Electrode paste is continuously vacuum deaerated inside the conduit system on the tank side of the airtight line and inside the tank by transferring the electrode paste to the tank using the mohno pump while maintaining the conduit system on the tank side of the airtight line in a vacuum state.    USE - Method for manufacturing electrode paste for manufacturing a secondary battery (claimed).    ADVANTAGE - The method enables transferring the electrode paste with the mohno pump, so that transferring of conduit system from the mohno pump to the deaerating tank and a vacuum deaerating process are continuously performed without batch processing, thus shortening time required to vacuum deaerate the electrode paste. The method enables utilizing reduced amount of the discarded electrode paste, so that manufacturing cost of the electrode paste and a secondary battery can be reduced, thus improving yield of the electrode paste and providing the secondary battery with better quality. The method enables easily and reliably removing bubbles with respect to the electrode paste in which the amount of solvent is reduced when producing the electrode paste with a twin screw extrusion mixer. The method enables reducing coating defects so as to avoid short circuit problems during manufacturing of the electrode paste, thus improving quality of the secondary battery.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) an electrode paste manufacturing system    (2) a secondary battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an electrode paste manufacturing system.    Electrode paste manufacturing systems (1, 11, 21, 31, 41)    Twin screw extrusion mixer (2)    Buffer tank (3)    Mohno pump (4)    Deaerating tank (6)    Vacuum pump (7)