MANUFACTURE OF DISPERSANT OF ACTIVE MATERIAL FOR BATTERY ELECTRODE

PROBLEM TO BE SOLVED: To provide a method for preparing a dispersant of active material for a battery electrode which is completely degassed and uniformly mixed and can exhibit excellent electrode performance. SOLUTION: In a dispersion vessel 1, a mixture solution of a binder component for an electrode and a solvent is held in a vacuum state of 300 Torr or less. Thereafter, active material for an electrode is continuously charged into the mixture solution under atmospheric pressure, followed by uniform agitation and dispersion in the vacuum state of 300 Torr or less. Consequently, it is possible to provide a dispersant of the active material for the battery electrode which is completely degassed and uniformly mixed, thus forming the electrode which can exhibit excellent performance.