Abstract: An electrode assembly has a one or more first electrode plates, separators, and second electrode plates are stacked, wherein the first electrode plate include a first electrode tab portion, to which a first active material is not applied, on one side thereof in a width direction, and the first electrode tab portion extends further outward in the width direction from one side end portion of the electrode assembly in the width direction than the separator, and an insulating coating is formed on a slit surface of the second electrode plate, which is disposed adjacent to the first electrode tab portion with the separator interposed therebetween, at one side end portion of the electrode assembly. The insulating coating is formed after coating and slitting a second active material on the second electrode plate and before stacking the first electrode plate, the second electrode plate, and the separator.

Abstract: A waste liquid treatment facility according to an exemplary embodiment of the present invention includes: a filter connected to a system of a nuclear power plant; a demineralizer connected to the filter; a reactor connected to the demineralizer and including a first lamp and a second lamp of different wavelengths connected in succession; a buffer tank connected to the filter, demineralizer, and reactor; and a circulation pipe portion connecting the filter, demineralizer, reactor, and buffer tank to form a circulation structure of a solution together with the system, wherein the solution sequentially passes through the first lamp and the second lamp.

Abstract: Disclosed are a solid state synthesis method of silver nanoparticles, and silver nanoparticles synthesized thereby. The method includes mixing a silver salt and a water soluble polymer acting as both a reducing agent and a protecting agent to produce a solid mixture, and milling the solid mixture by a high-speed vibration milling process to form silver nanoparticles within the water soluble polymer. According to the present invention, silver nanoparticles can be easily and simply produced in a solid state through high speed vibration milling, thereby reducing costs for industrial production and transportation of silver nanoparticles. In addition, the synthesized silver nanoparticles can be used for a long time since the silver nanoparticles are stable in a solid state for 1 year or more.