Abstract: In an acidic treatment liquid processing apparatus, a space between a first electrode and a second electrode spaced from each other is separated by a first diaphragm permeable and a second diaphragm into a first chamber, a second chamber, and a third chamber. While the first chamber is fed with an acidic treatment liquid containing a dichromate ion and a metal cation, the second chamber is fed with a first acid aqueous solution, and the third chamber is fed with a second acid aqueous solution, a voltage is applied using the first electrode as an anode and the second electrode as a cathode.

Abstract: An acidic treatment liquid processing apparatus includes: a tank having an interior space; a diaphragm permeable to a metal cation and separating the interior space of the tank into a first chamber and a second chamber; a first electrode disposed in the first chamber; a second electrode disposed in the second chamber; a power supply configured to apply a voltage while using the first electrode as an anode and the second electrode as a cathode; a first liquid passing part configured to pass an acidic treatment liquid containing a dichromate ion and a metal cation into the first chamber; and a second liquid passing part configured to pass an acid aqueous solution into the second chamber.

Abstract: Provided is an electrode manufacturing apparatus having a manufacturing unit mixing a plurality of materials and manufacturing an electrode slurry, a reservoir tank connected to the manufacturing unit and storing the manufactured electrode slurry that is manufactured, a coarse particle removal filter connected to the reservoir tank and removing coarse particles in a stored electrode slurry, a defoamer connected to the coarse particle removal filter and removing bubbles in the electrode slurry from which the coarse particles are removed and then returning the electrode slurry, from which the bubbles are removed, to a position below a liquid level of the electrode slurry stored in the reservoir tank, and a coating unit connected to the reservoir tank and coating the stored electrode slurry to a base material.

Abstract: In an aeration apparatus according to the present invention, water-repellent treatment is applied at least to one of an opening and vicinity thereof of a slit 12 formed in a diffuser membrane of an aeration nozzle, thereby providing a water-repellent layer 150, so that the inflow of seawater into the slit 12 is prevented and precipitation of calcium sulfate or the like in the slit is suppressed and avoided. As a material for forming the water-repellent layer 150, for example, a talc coating layer using talc, a fluorine coating layer coated with a fluorine resin, silicone coating layer coated with a silicone resin, and a wax coating layer coated with wax can be mentioned.

Abstract: A first slit 12A formed in a diffuser membrane of aeration diffusers of an aeration apparatus according to the present invention includes a linear reference slit 12a and a branched slit 12b crossing the linear reference slit 12a at a center thereof, and an opening shape of the first slit 12A is deformed due to pressure of air (an amount of air) to be supplied. Therefore, because an opening amount at a crossing 12c of the linear reference slit 12a and the branched slits 12b increases by temporarily increasing the amount of air, elimination of precipitates is facilitated, differently from conventional cases having only linear slits.

Abstract: An aeration apparatus is immersed in diluted used seawater (not shown) which is water to be treated and generates fine air bubbles in the diluted used seawater. The aeration apparatus includes: an air supply line L5 for supplying air 122 through blowers 121A to 121D serving as discharge unit; aeration nozzles 123, each of which includes a diffuser membrane 11 having slits and to which air containing moisture is supplied; and a control unit for performing control to temporarily stop supply of the air 122 at predetermined intervals.

Abstract: Provided is a lithium secondary battery that is capable of preventing thermal runaway inside the battery due to a short circuit. Included are cathodes (3) having cathode active material that stores and discharges lithium ions, anodes (4) that store and discharge lithium ions, and a dummy laminated body (9) in which dummy cathodes (6) connected to a cathode terminal and dummy anodes (7) connected to an anode terminal are alternately laminated and that has short circuit separators (8) for insulating the dummy cathodes (6) and the dummy anodes (7); and the dummy laminated body (9) is laminated on the outside of the alternately laminated cathodes (3) and anodes (4).