Abstract:
The present invention relate to a fiber reinforced ceramic composite material honeycomb and to a method for manufacturing the same and, more specifically, to a fiber reinforced ceramic composite material honeycomb which comprises multiple internal tubes made of a fiber reinforced ceramic composite material and an external shell made of a fiber reinforced ceramic composite material surrounding the multiple internal tubes, and to a method for manufacturing the same.
Abstract:
A flat-tubular solid oxide cell according to the present invention comprises multiple solid oxide unit cells having a first gas flow channel formed therein in a longitudinal direction, and having a gas inlet port for a first gas flowing in on one side of the first gas flow channel and a gas outlet port for the first gas flowing out on the other side of the first gas flow channel; a channel connector positioned between the gas inlet port and the gas outlet port of adjacent solid oxide unit cells, wherein the gas outlet port of one of the adjacent solid oxide unit cells is arranged to face the gas inlet port of the other, and connecting the first gas flow channels of the adjacent solid oxide unit cells; and a ring-shaped compressed sealing gasket interposed between the mutually facing gas inlet port and gas outlet port, and the channel connector to prevent leakage of the first gas.
Abstract:
The present invention relates to an elastic current collector and a current collecting method for a tube-shaped cell. Current is collected from the inner electrode of a tube-shaped cell by using, as a current collector, an elastic structure having the shape of a spring coil, a tube-shaped mesh, a tree, and a roll-shape mesh instead of using a traditional cylindrical current collector. Not only the current collector is economical by reducing weight thereof but also current collecting efficiency can be increased by minimizing interfacial resistance between the inner electrode and the current collector via the elasticity of the current collector. Therefore, the present invention relates to a conductive elastic current collector capable of increasing the efficiency of a cell and to a current collecting method for a tube-shaped cell.
Abstract:
본 발명은 탄소 구조체를 포함하는 3차원 구조체의 내부 표면에 탄소나노와이어를 직접적으로 합성하는 방법에 관한 것으로, 자세하게는 구조체 내부에 존재하는 기공이나 간극 표면에 고밀도로 탄소나노와이어를 합성하는 방법 및 이에 의하여 합성된 계층 구조체(hierarchical structure)에 대한 것이다. 본 발명에 따르면 기계적 물성이나 전도성의 저하를 가져오는 구조체 내부의 미세 기공이나 간극을 고밀도의 탄소나노와이어로 채울 수 있기 때문에 최종 생산품의 기계적 또는 전기적 성능을 획기적으로 향상시킬 수 있다.
Abstract:
Provided are method and system of ammonia based reversible fuel cell. The system comprises: an energy generation unit; an SORFC, an ammonia storage part; a water tank for the SORFC; a nitrogen supplying unit for the SORFC; and a smart grid control unit. The method comprises the steps of: producing ammonia electrochemically by supplying the electrical energy generated by the energy generation unit to the SORFC according to the order from the smart grid control unit, and by using water and nitrogen; storing the ammonia in the ammonia storage part; disassembling the ammonia by supplying it to the SORFC; integrating each cell for the ammonia synthesis and its use, performing the electrical energy generation using the hydrogen produced during the disassembling step of ammonia, then using the ammonia reversibly. [Reference numerals] (a) Energy power generation unit;(AA) Production;(b) Regenerative fuel cell(Solid Oxide Regenerative Fuel Cell);(BB) Consumption;(c) NH_3 storage part;(CC,DD,EE,FF) Electricity;(d) H_2O supplying part;(e) N_2 supplying part;(f) Smart grid control part;(GG) Consumer
Abstract:
The present invention relates to a carbon fiber reinforced silicon carbide composite and a manufacturing method thereof, more specifically, to a carbon fiber reinforced silicon carbide composite which forms a carbon nanotube inside a carbon fiber reinforced silicon carbide composite material, and reduces the amount of non-reacted metal and improves strength by melting and penetrating molten metal silicon.
Abstract:
PURPOSE: A metal support type thermal to electric conversion cell is provided to reduce fabrication costs by omitting a conventional high temperature sintering process. CONSTITUTION: A porous metal supporter is a tube form. A porous electrode function layer (120) is formed on the surface of a porous metal supporter. A solid electrolyte (130) is formed on the surface of the porous electrode function layer. A porous electrode (140) is formed on the surface of the solid electrolyte. The solid electrolyte forms a thin film.
Abstract:
PURPOSE: A manufacturing method of a high density fiber-reinforced ceramic composite is provided to manufacture a matrix structure ceramic composite in short time without using an expensive device. CONSTITUTION: A manufacturing method of a high density fiber-reinforced ceramic composite comprises the following steps: dipping a fiber molded product into phenol resin slurry which is mixed with a filler component; carbonizing the dipped fiber molded product; primary react-sintering the fiber molded product by heat treating the carbonized fiber molded products under vacuum atmosphere; dipping the cooled fiber molded product into a polymer precursor for SiC production after cooling the fiber molded product down to room temperature; and secondary react-sintering the fiber molded product by filling metal silicon powder in the surface of the fiber molded product and fusing under the vacuum condition. [Reference numerals] (AA) Composite of a comparative embodiment 1; (BB) Composite of an embodiment 1; (CC) Composite of an embodiment 3; (DD) Composite of an embodiment 4
Abstract:
본 발명은 탄화규소(SiC) 중공사 및 그 제조방법에 관한 것으로, 탄화규소, 소결조제를 혼합하여 혼합 분체를 형성하는 단계와, 상기 혼합 분체와 고분자, 분산제를 유기용매에 분산 혼합하여 슬러리를 형성하는 단계와, 상기 슬러리를 방사 노즐(spinneret)을 통과시킨 후 용매치환, 세척, 건조하여 탄화규소-폴리머 중공사를 형성하는 단계와, 상기 탄화규소-폴리머 중공사를 열처리하여 폴리머 성분을 제거하고 소결조제에 의해 탄화규소 입자가 부분 소결되는 단계를 제공함으로써, 탄화규소 중공사를 간단히 제조할 수 있도록 하는 발명에 관한 것이다.
Abstract:
PURPOSE: A current collector for fuel cell is provided to improve operational efficiency, lowers fabrication cost, and lightens weight of the fuel battery. CONSTITUTION: A current collector for a fuel battery comprises conductive material and silicon carbide. The conductive material locates inside the silicon carbide. The current collector has a structure of core-shell which silicon carbide covers the conductive material. The conductive material includes one or two kinds selected from a group including copper(Cu), nickel(Ni), gold(Au), platinum(Pt), palladium(Pd), ruthenium(Ru), iridium(Ir), silicon(Si), and carbon. The conductive material and silicon carbide are included in weight ratio of 1:9-9:1.