Abstract: There is provided a method for producing a cathode active material for a secondary battery, the method comprising: preparing mixed solution by mixing, with balls, reactive solution containing lithium ions, transition metal ions, and poly-acid anions; forming seeds by reacting the lithium ions, the transition metal ions and the poly-acid anions with one another in the mixed solution while agitating the mixed solution; producing active material powders by spraying and drying the mixed solution having the seeds contained therein; and heat-treating the active material powders.

Abstract: Disclosed is a method of manufacturing a bipolar plate for a redox flow battery. The method includes (a) mixing epoxy, a curing agent, and a conductive filler to manufacture a mixture, and (b) manufacturing the bipolar plate including a conductive filler composite manufactured by compression-molding the mixture.

Abstract: Disclosed is a method of manufacturing a bipolar plate for a redox flow battery. The method includes (a) mixing epoxy, a curing agent, and a conductive filler to manufacture a mixture, and (b) manufacturing the bipolar plate including a conductive filler composite manufactured by compression-molding the mixture.

Abstract: Disclosed is a safety vent for a battery and a method therefor. The safety vent for the battery and the method therefor are able to safely draw off an internal pressure by virtue of a higher reliability in case of an abnormal rise in the internal pressure in the battery, reduce a production cost by virtue of a simpler manufacture process, and be applied to a narrow space in the battery with more ease.