Abstract:
PURPOSE: A redox flow battery is provided to a metal-ligand coordination compound comprising an aromatic ligand containing electron withdrawing group by using a positive electrolyte and/or a negative electrode electrolyte, thereby having high energy density, and high charging/discharging efficiency. CONSTITUTION: A redox flow battery comprises: a positive electrode cell(1) comprising a positive electrode(13), and a positive electrolyte(11); a negative electrode cell(2) comprising a negative electrode(14), and a negative electrolyte(12); and an ion exchange membrane(10) located between the positive electrode cell and the negative electrode cell. The positive electrolyte and the negative electrolyte respectively comprise solvent, support electrolyte, and metal-ligand coordination compounds. At least one of the metal-ligand coordination compounds is a metal-ligand coordination compound, which contains an aromatic ligand containing an electron withdrawing group.
Abstract:
PURPOSE: A residual oxygen removal method of a fuel cell is provided to prevent the generation of a negative pressure inside a stack of the fuel cell while removing residual oxygen inside micro-pores inside an electrode of the stack. CONSTITUTION: A residual oxygen removal method of a high temperature non-humidifying fuel cell comprises the following steps: maintaining the air tightness of an air electrode by forming the pressure of the air electrode bigger than the exterior of the air electrode(S1,S3); and removing residual oxygen from a stack of the fuel cell by stop supplying fuel to the stack(S5,S9). The air tightness maintaining process comprises the following steps: blocking the air outflow from the air electrode(S10); comparing the pressure of the air electrode with a pre-fixed pressure bigger than the pressure from the exterior; and supplying air to the air electrode if the pressure from the air electrode is bigger than the pre-fixed pressure.
Abstract:
Disclosed are a composite for charging an ion exchange film, a manufacturing method of the ion exchange film, an ion exchange film, and a redox flow battery. The disclosed composite for charging an ion exchange film includes a first aromatic vinyl monomer having a halogenated alkyl group or four-class ammonium. The halogenated alkyl group has a carbon number of 1-10. The first aromatic vinyl monomer includes at least one kind selected from a group composed of vinylbenzyl chloride (VBC), (vinylbenzyl) trimethyl ammonium chloride, and 1-allyl-3-methyl imidazolium chloride, and o-allyl-N-benzyl cinchonidinium chloride (O-allyl-N-benzylcinchonidinium chloride).
Abstract:
PURPOSE: A battery pack having a cooling device is provided to reduce temperature deflection in a housing and to improve battery pack efficiency. CONSTITUTION: A battery pack(300) having a cooling device comprises: plural battery cells(122), a housing(310) covering the battery cells, an inlet port(312) for entering cooled air and an outlet port(314) for outputting cooled air, and a cooling device(330) for cooling cooled air inside the housing. The cooling device comprises: a cooling pipe(332) for heat exchange with cooled air; a water pump(334) for supplying cooled water to the cooling pipe; and a storage tank(336) for storing the cooled water.
Abstract:
PURPOSE: A fuel cell power management system is provided to prevent the degradation of the quality of electricity outputted from PCS(power conditioning system) and to extend the lifetime of a fuel cell compared with a conventional power control and management system. CONSTITUTION: A fuel cell power management system comprises: a battery(21) generating DC power; a PCS(22) generating AC power from DC power generated by the battery; a power grid connected to the PCS; a detector(26) for detecting the change of AC power flowing into the output beam furnace of PCS; and a control part(27) controlling the connected state between the power grid and PCS according to the detection result at a detector.