Direct hydrocarbon fuel solid oxide fuel cell anti-carbon deposition anode and a preparation method thereof

The invention relates to an anti-carbon deposition solid oxide fuel cell anode material and a preparation method thereof. The composition of the anode material is xSr (1-1.5y) My TiO3-(1-x) CeO2. In the formula, x is equal to 0.3-0.7, and y is equal to 0.04-0.4; M is La, Y or Sm. The adulteration amount of La, Sr and Y is respectively 0.2-0.4mol%, 0.1-0.3mol% and 0.02-0.08mol%. Compared with the traditional nickel- yttrium oxide stabilized zirconia anode taking hydrogen as fuel, the anode material can take hydrocarbon having low price and rich reserve volume as fuel, so as to reduce the cost of a solid oxide fuel cell and be beneficial to accelerating the commercial development of the solid oxide fuel cell.

Anti-carbon deposition anode film material and method for producing the same

The invention relates to a carbon deposit resistant anode membrane material and a preparation method thereof, belonging to the flat-plate solid oxide fuel cell (SOFC) field. The preparation method is based on casting means; firstly, zirconia and nickel oxide slurries of organic pore-forming materials are added by means of casting, and membrane material of a large anode supporting body is obtained after sintering; secondly, cupric oxide dust and cerium oxide dust are uniformly mixed; thirdly, after preparation of the slurries, silk-screen printing on the surface of the anode supporting body is performed; fourthly, a catalysis layer is sintered under high temperature, and the carbon deposit resistant anode membrane material is obtained. The method is simple in technology and low in cost and is suitable for industrialized production, and the prepared anode membrane material has good carbon deposit resistance.

Composite connection board for solid oxide fuel cell stack and its producing method

The composite connection board is in sandwich structure including middle refractory alloy, protective conducting ceramic layer stable in oxidation atmosphere on the cathode side, and protective conducting metal layer stable in reduction atmosphere on the anode side. The thickness of the refractory alloy is 2-5 mm, the protective conducting ceramic layer 40-100 microns and the protective conducting metal layer 50-100 microns. The refractory alloy is preferably Cr-based alloy, the protective conducting ceramic layer is made of (La1-xSrx)0.9MnO3-dalta with x is 0.2-0.5, and the protective conducting metal layer is made of Ni.

Ceramic thick membrane assembling process

一种固体氧化物燃料电池堆用的复合连接板

... 本发明涉及一种固体氧化物燃料电池堆(SOFC)用的复合连接板，其特征在于复合连接板呈三明治型的结构，中间为耐热合金，阴极一侧为氧化气氛下稳定的导电陶瓷保护层，阳极一侧为还原气氛下稳定的金属导电保护层。耐热合金厚度为2-5mm，陶瓷保护层和金属保护层厚度分别为40-100微米和50-100微米。优先推荐为耐热合金为铬基合金，陶瓷保护层为掺Sr锰酸镧(La#-[1-x]Sr#-[1-x])#-[0.9]MnO#-[3-δ](0.2≤x≤0.5)，以及金属保护层为金属Ni。 ...

平板式固体氧化物燃料电池的中高温封接方法及其封接用材料

A series of sealant materials suitable to 800-1000 deg.C are prepared by using microcrystalline glass in system of CaO-Al2O3-SiO2-B2O3. Range of softening temperature of the series of microcrystalline glass is 750-850 deg.C, and range of crystallizatino is 800-1000 deg.C. In warming up procedure, pristine glass softened at 750-850 deg.C is drenched and adhered with ZrO2 electrolyte and Ni-Cr material of bipolar plate. When temperature goes up continuously, integral recrystallization is occurred, and intensity of material is enhanced. Experiments prove that the material suits to sealing use at temperature 800-1000 deg.C: certain mechanical strength and size, wettability, coefficient of thermal expansion, chemical stability and good matching to materials of batteries. The invention possesses advantages of wide range of sealing temperature, easy manufacturing and sealing technique and high cost performance ratio.

Medium and high temperature sealing method of plate type solid oxide fuel battery and its sealing material

Prepartion method of anode supported compound membrane of solid electrolyte in mesothermal fuel cell of soild oxide

Alloy high temperature oxidation resisting nanostructure conductive coating prepared with spinel powder reduction method

The invention provides a preparing method of an alloy high temperature oxidation resisting nanostructure conductive coating, i.e. a spinel powder reduction coating method. On one hand, coating powdermaterial with favorable sintering performance is obtained by the regulation and control of the preparing process of coating powder material and effective reductive treatment; on the other hand, a nanometer microstructure film is prepared on the alloy surface by adopting silk screen assisted improved sizing agent coating technology. The film has controllable and even thickness and superior performance, and coating is tightly combined with the alloy; the coating alloy has lower area specific resistance (ASR) and higher long-time running stability under high temperature oxidation environment. Thespinel powder reduction coating method originated by the invention has simple film manufacturing method, low cost and strong repetitiveness, can be applied to coating preparation of alloy with different ...

Method for improving solid-oxide fuel battery performance

The invention relates to a method for improving the performance of solid oxide fuel batteries and belongs to the field of the solid oxide fuel batteries. The method is characterized in that: (1) the fired battery anode is deoxidized by reducing gas (such as H2 or Co), the NiO-YSZ (YSZ is zirconia which is stabilized by yttrium) system in the anode is deoxidized into a Ni-YSZ system. As NiO is deoxidized into Ni, 25 percent of volume is changed, therefore, after the anode of the fired battery is deoxidized, the quite a bit of clearance is left in the anode; (2) the deoxidized anode of the battery is immersed in the solution of to-be-introduced material or precursor solution; at the moment, as the anode is deoxidized, the structure is loosened, and the to-be-introduced material or the precursor can be easily immersed into the whole anode; (3) heat treatment is carried out on the immersed battery anode and the precursor is decomposed, thus obtaining the material needed to be introduced into ...

Dry pressing formation type large area ceramic thin sheet demoulding apparatus

The demuolding equipment for dry-press formed large-area ceramic thin sheet is characterized by that between spacer block and upper top head of press machine an elastic component is set, the sectional area of the elastic component is slightly less han that of formed ceramic blank body, its one portion is positioned in the mould sleeve, and the natural height of the portion exposed to exterior of the mould sleeve is greater than that of demoulding block, its form is identical or similar to that of ceramic thin sheet, and the thickness and elastic force of said elastic component can be regulated. The described elastic component is one of spongy body, spring or hydraulic device or their combination. Said invention is not only applicable to formation of large-area ceramic thin sheet, but alsocan be used for large-area cold-press formation of plastic powder and metal powder.

Cathode side current collection material of solid oxide fuel cell and preparation method thereof

The invention relates to a cathode side current collection material of a solid oxide fuel cell and a preparation method thereof, belonging to the field of fuel cell materials. The current collection material is compounded from A-site deficient lanthanum strontium manganate and noble metals, and is a non-pure phase mixture material. The chemical formula of the basic composition of the material is (1-z)(La1-xSrx)1-yMnO3-delta-zA. The A-site deficient lanthanum strontium manganate has high stability and high electric conductivity in the oxidizing atmosphere; and the noble metals have high stability and high electric conductivity in the oxidizing and reducing atmospheres, have high toughness at high temperature, and can improve the contact among ceramic granules. The preparation method comprises the following steps: adding a compound of the noble metals into A-site deficient lanthanum strontium manganate particles sintered at high temperature, carrying out heat treatment, and printing on the ...

Ceramic thick membrane assembling process

A process for forming thick ceramic film includes such technological steps as making raw ceramic film in a certain thickness by doctor blading method, drying for a certain time, isostatic pressing and sintering. Its advantages include large area of thick ceramic film, high density of raw film increased by 8-11%, high relative density of sintered film increased by 5-10%, high uniformity, smoothness and compactness and simple process.

Mn-Co-doped spinel composite nanometer material and low-temperature sintering method thereof

The invention provides an Mn-Co-doped spinel composite nanometer material and a low-temperature sintering method thereof. The spinel material has the following chemical composition: Mn<1-m>(R)m<1+x>Co<2-x>O4 or Mn<1+x>Co<1-n>(R)n<2-x>O4, wherein x is less than or equal to 1 and more than or equal to 0, m is more than 0 and less than or equal to 0.2, n is more than 0 and less than or equal to 0.2,and R is one or a plurality of rare earth metal elements. The material can serve as high temperature oxidation resisting conductive coating material of a solid oxide fuel cell (SOFC) alloy connectingboard or serve as high temperature oxidation resisting conductive coating material under other similar environments. Meanwhile, the invention initiates a low-temperature sintering method of spinel material, the spinel powder material which can be reduced is firstly reduced, tabletted and sintered, sintered blocks show higher sintering activity and obviously high conductivity at lower temperature,and ...

一种用于大面积陶瓷薄片干压成型的脱模装置

... 本发明涉及一种用于大面积陶瓷薄片干压成型的脱模装置，其特征在于在垫块3和压机上顶头2之间放置有弹性部件8；弹性部件8的截面积略小于成型的陶瓷坯体6的截面积，其一部分位于模套4内，露在模套4外面的自然高度大于脱模块7的高度；其形状与压制陶瓷薄片的形状相同或相似；弹性部件8的厚度和弹力是可调的。所述的弹性部件为海绵体、弹簧或液压装置中一种或其组合。本发明提供的脱模方法不仅适用于大面积陶瓷薄片(或称大的周长/厚度比陶瓷片)成型而且也可用于塑料粉末、金属粉末的大面积冷压成型。 ...

Mn-Co-doped spinel composite nanometer material and low-temperature sintering method thereof

The invention provides an Mn-Co-doped spinel composite nanometer material and a low-temperature sintering method thereof. The spinel material has the following chemical composition: Mn<1-m>(R)m<1+x>Co<2-x>O4 or Mn<1+x>Co<1-n>(R)n<2-x>O4, wherein x is less than or equal to 1 and more than or equal to 0, m is more than 0 and less than or equal to 0.2, n is more than 0 and less than or equal to 0.2,and R is one or a plurality of rare earth metal elements. The material can serve as high temperature oxidation resisting conductive coating material of a solid oxide fuel cell (SOFC) alloy connectingboard or serve as high temperature oxidation resisting conductive coating material under other similar environments. Meanwhile, the invention initiates a low-temperature sintering method of spinel material, the spinel powder material which can be reduced is firstly reduced, tabletted and sintered, sintered blocks show higher sintering activity and obviously high conductivity at lower temperature,and ...

Anode supporting solid electrolyte compound film for solid oxide fuel battery and its preparing method

Alloy high temperature oxidation resisting nanostructure conductive coating prepared with spinel powder reduction method

The invention provides a preparing method of an alloy high temperature oxidation resisting nanostructure conductive coating, i.e. a spinel powder reduction coating method. On one hand, coating powder material with favorable sintering performance is obtained by the regulation and control of the preparing process of coating powder material and effective reductive treatment; on the other hand, a nanometer microstructure film is prepared on the alloy surface by adopting silk screen assisted improved sizing agent coating technology. The film has controllable and even thickness and superior performance, and coating is tightly combined with the alloy; the coating alloy has lower area specific resistance (ASR) and higher long-time running stability under high temperature oxidation environment. The spinel powder reduction coating method originated by the invention has simple film manufacturing method, low cost and strong repetitiveness, can be applied to coating preparation of alloy with different ...