Abstract:
PURPOSE: A fuel electrode-supported flat tubular solid oxide fuel cell and a manufacturing method thereof are provided to facilitate manufacturing of stack, simplify current collection, and reduce manufacturing cost. CONSTITUTION: A fuel electrode-supported flat tubular solid oxide fuel cell comprises a plurality of unit cells(1) which are laminated into serial stacks or parallel, flow channels(12) for fuel gas to flow which are formed inside fuel electrode-supporter of the unit cells, an electrolyte layer(20), a cathode(30), and connecting materials(40) which are equipped on surfaces of the fuel electrode supporter, interconnectors locating between the unit cells which are formed by paste, and a metal mesh(50) for current collection which is arranged on the Interconnector.
Abstract:
PURPOSE: A bundle of a unit cell assembly type SOFC is provided to ensure excellent airtightness of a coupling state while facilitating the coupling of the cell assembly with a manifold and to easily separate or replace each cell assembly from the manifold. CONSTITUTION: A method for preparing a bundle of a unit cell assembly type SOFC comprises the steps of: sealing a closed cap at one part of a cylindrical cell and an open cap(113) having a connection tube(113a) at the other part of the cell; completing a cell assembly(110) by installing a current collector around the cell; and coupling the cell assembly to a manifold(120) equipped with a fuel inflow tube(122) using a fitting body and lock-fitting(130).
Abstract:
본 발명은 고체산화물 연료전지가 다층으로 적층되는 경우에 연료전지의 출력의 손실을 줄이며, 금속분리판의 소재로 크로퍼를 적용할 수 있는 고체산화물 연료전지의 금속분리판의 표면처리방법에 관한 것이다. 본 발명의 고체산화물 연료전지의 금속분리판 표면처리는 고체산화물 연료전지의 금속분리판 소재로서 크로퍼(Crofer 22 APU)를 모재로 사용하고, 그 표면에 샌드블라스팅으로 표면처리한 후 (La 0.85 Sr 0.15 ) 0.9 MnO 3 또는 La 0.8 Sr 0.2 CoO 3 을 코팅재료로 하는 코팅용 슬러리를 스프레이 방식으로 코팅하여 형성된 세라믹 코팅층을 질소의 불활성 분위기 또는 질소 및 수소의 환원 분위기 하에 열처리한 것을 특징으로 한다. 상기와 같은 세라믹 코팅층을 형성함으로써 산화크롬(Cr 2 O 3 )과 같은 스케일의 형성을 억제시켜 고체산화물 연료전지의 우수한 장기 성능 특성을 얻을 수 있는 장점이 있다. 고체산화물 연료전지, 금속분리판, 스케일, 슬러리
Abstract:
A heating device of metallic interconnect is provided to form a dense coating layer minimizing micropore or microcrack on the metallic interconnect, to reduce the loss of output in operation of a solid oxide fuel cell, and to maintain long term endurance and performance of the metallic interconnect. A heating device of metallic interconnect(1) for a solid oxide fuel cell comprises a flat heating plate(11) which is mounted with the metallic interconnect and heats the metallic interconnect to 150~300 °C; a heating unit(12) which includes a heater(12a) providing the to the heating plate and a control part(12b) controlling a heating temperature; an insulating member(13) insulating a part which does not contact with the heating plate of the heater on the bottom surface of the heater; a case(14) accommodating the heating plate, heater and insulating unit; and a clamp(15) fixing the metallic interconnect on the heating plate.
Abstract:
본 발명은 고체산화물 연료전지의 전해질로 사용되는 고이온전도성 스칸디아 안정화 지르코니아와 이를 이용한 전해질의 제조 방법에 관한 것이다. 본 발명의 제조 방법은, 질산스칸듐과 질산지르코늄을 칭량하여 증류수에 용해한 후 글리신을 첨가하는 단계와; 글리신이 첨가된 용액을 90∼100℃로 가열, 교반하여 수분을 증발시키는 단계와; 가열 온도를 높여 자발착화에 의해 분말을 얻는 단계와; 650∼750℃에서 1∼3시간 동안 하소하여 스칸디아 안정화 지르코니아 분말을 얻는 단계 등으로 이루어지며, 이 분말을, 일축가압 몰딩 성형, 박막 코팅 및 테잎 캐스팅 등의 방법으로 전해질을 제조한다. 본 발명의 제조 방법은, 종래의 방법에 비하여 균일한 조성과 미세한 입도륵 갖는 분말로 합성할 수 있어 연료전지의 성능 향상이 가능하며, 저온에서의 소결이 가능하여 제조 비용을 절감할 수 있는 이점이 있다. 지르코니아, 스칸디아 안정화 지르코니아, 고체산화물 연료전지, 이트리아 안정화 지르코니아, 연료전지
Abstract:
A cubic scandia stabilized zirconia for a solid oxide fuel cell electrolyte, and a method for preparing the cubic scandia stabilized zirconia are provided to improve mechanical stability and the resistance against thermal stress and to allow the cubic phase to be maintained stably even at a high temperature for a long time. A cubic scandia stabilized zirconia is a powder represented by (ZrO2)_(1-x-y) (Sc2O3)_x (MO)_y, wherein x is 0.1-0.12; y is 0.001-0.05; and a starting material MO is any one selected from MnO2, TiO2, NiO, CuO and Al2O3. Preferably the powder has an average diameter of 0.1-1 micrometers. The preparation method of the cubic scandia stabilized zirconia comprises the steps of a solid phase reaction using zirconia(ZrO2), scandia(Sc2O3), and any one metal oxide selected from MnO2, TiO2, NiO, CuO and Al2O3; and a liquid phase reaction using any one of zirconium nitrate and zirconium chloride, scandium nitrate, and any one metal nitrate selected from Mn, Ti, Ni, Cu and Al.
Abstract translation:提供用于固体氧化物燃料电池电解质的三次Scandia稳定化氧化锆和用于制备立方钪稳定氧化锆的方法,以改善机械稳定性和耐热应力,并且即使在高温下也能稳定地保持立方相 需很长时间。 立方钪稳定氧化锆是由(ZrO 2)_(1-x-y)(Sc 2 O 3)_x(MO)_y表示的粉末,其中x为0.1-0.12; y为0.001-0.05; 原料MO为选自MnO 2,TiO 2,NiO,CuO和Al 2 O 3中的任一种。 优选地,粉末具有0.1-1微米的平均直径。 立方钪稳定氧化锆的制备方法包括使用氧化锆(ZrO 2),Scandia(Sc 2 O 3)和选自MnO 2,TiO 2,NiO,CuO和Al 2 O 3的任何一种金属氧化物的固相反应步骤。 使用硝酸锆和氯化锆,硝酸钪和选自Mn,Ti,Ni,Cu和Al中的任何一种金属硝酸盐进行液相反应。
Abstract:
PURPOSE: A silicon carbide slurry for the electrolyte matrix of a phosphoric acid-type fuel cell and its preparation method are provided, to improve the performance and the lifetime of a fuel cell by the uniform distribution of size of slurry particles. CONSTITUTION: The silicon carbide slurry comprises 45-55 vol% of a silicon carbide with a particle size of 0.1-1 micrometers and 45-55 vol% of a silicon carbide with a particle size of 1-10 micrometers, and comprises 3-10 wt% of PTFE(polytetrafluoroethylene) based on the total weight of the two kind of silicon carbide. The method comprises the steps of dispersing two kind of silicon carbide into a deionized water containing PTFE, respectively; ball-milling the respective dispersion solution for 2-4 hours to obtain two kind of slurry; and mixing the two kind of slurry to prepare the silicon carbide slurry.
Abstract:
PURPOSE: A control method and a control apparatus of a fuel battery energy system is provided to control properly a thermal energy of a fuel battery energy system by optimizing the reaction temperature of a battery stack. CONSTITUTION: A control method and a control apparatus of a fuel battery energy system comprise the steps of: detecting the variation of a thermal load of a steam system; performing an operation process for the varied capacity of the thermal load by a controller and producing a control setup value; controlling temperature and humidity of cooling water input to a battery stack by using the produced control setup value and providing the generated steam corresponding to the varied load to the steam system.
Abstract:
본 발명은 페로브스카이트 구조를 갖는 소결된 산화물 공기극층 상에 Ag 및 CeO 2 가 도포 및 분산되어 중·저온에서의 산소 환원 활성이 높으면서 내구성이 우수한 고체산화물 연료전지용 복합 공기극, 이를 포함하는 고체산화물 연료전지 및 이의 제조방법에 관한 것이다.