Abstract:
본 발명은 코어쉘 구조의 연료전지용 전극 촉매의 제조에 있어서, 화학적 처리 또는 열처리 등의 후처리 공정 없이 각각 코어 및 쉘 층을 형성할 수 있으며, 나노 사이즈의 코어 입자가 균일하게 담지된 코어 담지체를 형성한 후 상기 담지체에 코어 입자 표면에만 선택적으로 쉘 층이 형성되도록 하는 제조방법; 촉매 담지량, 촉매 활성 및 전기화학적 특성이 우수한 코어쉘 구조의 연료전지용 전극 촉매 및 이를 포함하는 연료전지를 제공한다.
Abstract:
PURPOSE: A manufacturing method of an electrode catalyst is provided to make uniform formation of core particle, and selective formation of shell layers, thereby capable of forming an electrode catalyst of core shell structure without chemical treatment or heat treatment. CONSTITUTION: A manufacturing method of a carrier, and an electrode catalyst for fuel cell comprising a core-shell structured catalyst carried in the carrier comprises: a step of carrying nano-sized core elements into the carrier by reacting the carrier and a metal for forming core in ether-based solvent; and a step of forming shell layer on the surface of the core element by reducing a metal for forming shell layer by an ester based reducing agent. The metal for forming core is one or more selected from palladium, copper, gold, and iridium, and the meal for forming shell layer is one or more selected from platinum, iridium and gold.
Abstract:
PURPOSE: An in-situ manufacturing method of polybenzimidazole-base electrolyte membrane and a polybenzimidazole-base electrolyte membrane manufactured by using thereof are provided to manufacture polybenzimidazole-base electrolyte membrane with desired area without going through complex processes. CONSTITUTION: An in-situ manufacturing method of polybenzimidazole-base electrolyte membrane comprises the following steps: (S1) polymerizing the polybenzimidazole-base polymer in solution; (S2) forming a membrane by casting the solution including the polymerized polymer on top of the substrate and drying the outcome material in air; (S3) washing the dried membrane with water or alcohol; and (S4) evaporating water or alcohol as fixing a form of the film.
Abstract:
열을 가하면 발열하면서 탈수소화가 가능한 수소 발생 물질을 수용할 수 있는 용기로서, 상기 저장 용기의 벽면에는 발생된 수소가 배출될 수 있는 수소 배출 통로가 형성된 수소 발생 용기가 하나 이상 장착되는 탱크이고, 상기 탱크 내부에는 복수 개의 분할된 구획이 형성되며, 상기 분할된 각각의 구획에 상기 수소 발생 용기가 장착되는 것이며, 상기 수소 발생 용기로부터 배출되는 수소를 저장하고 외부로 공급하는 수소 공급 탱크, 이를 이용하는 수소 공급 장치와 수소 공급 방법 및 수소 이용 장치를 제공한다.
Abstract:
본 발명은 (a) 촉매 및 전도성 바인더를 분산용매 중에 분산시켜 촉매 슬러리를 제조하는 단계; (b) 상기 촉매 슬러리를 교반(stirring), 초음파(sonication) 처리 및 균일화(homogenizing)하는 단계; (c) 상기 촉매 슬러리를 기재 상에 도포하고 건조시키는 단계; 및 (d) 상기 단계(c)를 거친 기재를 전해질막의 일면 또는 양면에 전사하여 촉매층을 형성하는 단계를 포함하는 연료전지용 막-전극 접합체 (MEA)의 제조방법에 관한 것이다. 본 발명에 따르면, 촉매 및 전도성 바인더 입자가 균일하게 분산된 촉매 슬러리를 제조할 수 있고, 입자의 응집에 의해 슬러리의 점성이 일관성 없이 증가하는 현상을 방지할 수 있다. 따라서, 이러한 촉매 슬러리를 도포하는 경우 균일성이 매우 우수한 촉매층을 형성할 수 있는 바, 궁극적으로 이를 적용한 막-전극 접합체의 경우 향상된 성능을 나타낼 수 있다.
Abstract:
PURPOSE: A method for manufacturing an electrode including polybenzimidazole with high activity of a triple phase boundary is provided to enhance the activity of a triple phase boundary that is an actual response location in a fuel cell and to manufacture a membrane electrode assembly having improved performance. CONSTITUTION: A method for manufacturing an electrode including polybenzimidazole comprises the steps of: providing a first mixture of polybenzimidazole and a catalyst supported in a carrier; and mixing polytetrafluoroethylene with the first mixture to prepare a second mixture. The first mixture production step is carried out by forming a dispersion by adding the catalyst supported in the carrier to the solution formed by dissolving polybenzimidazole in a solvent and removing the solvent from the dispersion.
Abstract:
본 발명에서는 로봇에 대한 주전원으로서 연료전지장치를 사용하고, 상기 주전원의 보조 전원으로서 이차전지를 사용하는 하이브리드 전력공급장치를 제공한다. 상기 하이브리드 전력공급장치에 있어서, 로봇의 소비 전력이 연료전지장치의 생산 전력을 초과하는 경우 이에 대응하여 이차전지와 연료전지장치 간의 부하를 배분시켜 보조 전원인 이차전지로부터도 로봇에 전력을 공급하도록 한다. 로봇, 연료전지, 이차전지, 하이브리드, 전력분배장치
Abstract:
A method for manufacturing a membrane electrode assembly, and a unit cell of a fuel cell containing the membrane electrode assembly are provided to produce a membrane electrode assembly of a large area massively and to inhibit the formation of an ionomer skin layer, thereby improving the performance of a fuel cell. A method for manufacturing a membrane electrode assembly comprises the steps of forming a carbon layer(101) on a transfer substrate(201); forming a catalyst layer(102) on the transfer substrate in which the carbon layer is formed; and transferring the carbon layer and the catalyst layer formed on the transfer substrate to a polymeric electrolyte membrane(104). An outer ionomer layer(103) is formed on the catalyst layer at the second step.
Abstract:
A hybrid power supply device is provided to supply the stable power regardless of the sudden load variation using liquid fuel cell. A power distributing device(400) is connected to a robot(100). A fuel cell device(200) is connected to the power distributing device. The fuel cell device supplies the power to the robot. The fuel cell device includes a fuel cell stack and a peripheral device. The peripheral device operates the fuel cell stack. A secondary battery(300) is connected to the power distribution device. The secondary battery supplies the power to the peripheral device, the power distribution device, and an operation control device(500). If the power consumption exceeds the power produced by the fuel cell device, the secondary battery supplies the power to the robot. The operation control device is connected to the fuel cell device and the power distribution device. The operation control device controls the operation of the peripheral device.
Abstract:
A cobalt-boron catalyst/carrier for generating hydrogen and a method for manufacturing the same are provided to improve the activity of the catalyst, reduce the loss of catalyst in a continuous circulation type reaction, and substitute for noble metal catalysts, by manufacturing the cobalt-boron catalyst/carrier using an alkaline borohydride solution. A cobalt-boron catalyst/carrier for generating hydrogen is manufactured by using an alkaline borohydride solution. One or two types of cobalt-boron catalysts are supported on a carrier, wherein the one or two types of cobalt-boron catalysts are cobalt-boron oxides or cobalt-boron compounds except cobalt-carbon oxides. The alkaline borohydride solution is prepared by mixing one hydroxide selected from NaOH and KOH into one borohydride selected from NaBH4, KBH4, and LiBH4.