摘要:
A fuel cell including at least one single cell C having an electrolyte 3, a fuel electrode 5, and an air electrode 7, wherein the single cell C is supported on a substrate 1 and the electrolyte 3 is disposed on a first surface of the substrate 1, with the fuel electrode 5 and the air electrode 7 disposed on the first surface of the substrate 1 so as to sandwich the electrolyte 3.
摘要:
The fuel cell uses a solid oxide as an electrolyte and includes a cell main body. The cell main body, which includes an anode layer, an electrolyte layer and a cathode layer, is formed on a mesh conductor according to a plasma spraying method. Atmospheres respectively in contact with the anode and cathode layers are operated according a method in which they are isolated from each other. The method for manufacturing the solid type fuel cell is characterized in that an anode composition, an electrolyte composition and a cathode composition are plasma sprayed onto the mesh conductor sequentially in this order.
摘要:
The solid electrolyte of the present invention is composed of an organic/inorganic composite material having pores with a mean pore diameter of 1 to 30 nm and having a skeleton comprising a metal atom, an oxygen atom bonded to the metal atom, and an organic group having at least one carbon atom bonded to the metal atom or the oxygen atom, and a functional group having an ion exchange function and bonded to the organic group inside the pores. As a result, even if the relative pressure of the water vapor in the atmosphere is less than 1.0, it is still possible to achieve a solid electrolyte with a sufficiently high ion conductivity at a lower temperature than with a conventional solid electrolyte such as stabilized zirconia.
摘要:
A process for producing a cell for solid oxide fuel cells comprising a porous electrolyte layer-forming step of obtaining an electrolyte substrate in which a porous electrolyte layer is formed by applying a slurry for forming an electrolyte layer containing an electrolyte substance powder and a pore-forming agent to the surface of an electrolyte substrate and burning the electrolyte substrate, and an electrode layer-forming step of obtaining an electrolyte substrate in which an electrode substance-filled porous electrolyte layer and an electrode layer are formed by applying a slurry for forming an electrode containing an electrode substance powder, a mixture of an electrode substance powder and an electrolyte substance powder, or a composite material powder of an electrode substance and an electrolyte substance, onto the surface of the porous electrolyte layer of the electrolyte substrate on which the porous electrolyte layer is formed, and burning the electrolyte substrate in which the porous electrolyte layer is formed. According to the present invention, a process for producing a cell for solid oxide fuel cells which can increase the three-phase interface of the porous electrolyte layer and exhibits only a small conductivity reduction of the electrolyte layer can be obtained.
摘要:
There is disclosed a method for preparing a thin ceramic and/or metallic solid-state composition consisting of three phases: a material (A), a material (B) and pores. The concentration of each phase varies continuously from one face of the article to the other in a continuous and controlled gradient. The porous matrix of material (A) has a porosity gradient of 0% to about 80%, the pores being completely or partly filled with material (B). The concentration of material (B) in the article therefore varies from 80% to 0% of small thicknesses.
摘要:
A solid oxide electrochemical device having a laminar composite electrode with improved electrochemical and mechanical performance, the laminar composite electrode comprising a porous support electrode layer, a thin and patterned structure layer, and a thin and dense electrolyte layer and methods for making.
摘要:
The process described herein provides a simple and cost effective method for making crack free, high density thin ceramic film. The steps involve depositing a layer of a ceramic material on a porous or dense substrate. The deposited layer is compacted and then the resultant laminate is sintered to achieve a higher density than would have been possible without the pre-firing compaction step.
摘要:
Dislocations are fabricated into electrolyte membrane films to increase ion conductivity. Ion and/or electron irradiation causes the growth of vacancy clusters within the thin film and collapsing into Frank dislocation loops that exhibit high ion conductivity. Maximum ion conductivity is accomplished by spatially reorienting the Frank dislocation loops during a following heat-treatment of the membrane. Thereby the dislocation loops form surface-to-surface continuous dislocations along which ions may propagate between membrane surfaces with minimal activation energies. Dislocation densities in the range of 108˜1014 cm/cm3 may be fabricated with conventional irradiation techniques into ceramics such as, for example yttria stabilized zirconia and doped ceria.
摘要翻译:将位错制成电解质膜膜以提高离子电导率。 离子和/或电子辐射导致薄膜内空位簇的生长并且折叠成显示出高离子电导率的Frank位错环。 通过在膜的随后热处理中空间调整Frank位错环来实现最大离子传导性。 因此,位错环形成表面到表面的连续位错,离子可以沿着该位移以最小的活化能在膜表面之间传播。 可以用常规照射技术将10×10〜14cm / cm 3范围内的位错密度制成陶瓷,例如 氧化钇稳定氧化锆和掺杂二氧化铈。
摘要:
Particle migration, such as silver electro-migration, on a flat ceramic surface is effectively eliminated by an upward vertical barrier formed on the surface or a groove formed in the surface between two silver conductors.
摘要:
An electrochemical device and a proton conducting medium for use in an electrochemical device having a proton conducting electrolyte comprising the formula: HaMbQ.nH2O where H is a proton, M is a cation, Q is the fluoroborate or fluoroheteroborate anion, n ranges from 0.01 to 1000, a ranges from 0.01 to 2 and b ranges from 0 to 2, a and b are chosen to render the formula electrically neutral, and when b is greater than 0, the ratio of b to a is less than 100 to 1.