摘要:
Methods for forming three-layer thin-film battery (TFB) structures by sequential electrophoretic deposition (EPD) on a single conductive substrate. The TFBs may be two- dimensional or three-dimensional. The sequential EPD includes EPD of a first battery electrode followed by EPD of a porous separator on the first electrode and by EPD of a second battery electrode on the porous separator. In some embodiments of a Li or Li-ion TFB, the separator includes a Li ion conducting solid. In some embodiments of a Li or Li-ion TFB, the separator includes an inorganic porous solid rendered ionically conductive by impregnation with a liquid or polymer. In some embodiments, the TFBs are coated and sealed with an EPDd PEEK layer.
摘要:
The electrolyte sheet for solid oxide fuel cell of the present invention has different surface roughnesses between the peripheral region and the region other than the peripheral region at least on one side. The surface roughness Ra(b) in the peripheral region is at least 0.05 µm and less than 0.3 µm. The surface roughness Ra(i) in the region other than the peripheral region is at least 0.2 µm and at most 1.2 µm. And, the ratio of Ra(i) to Ra(b) (Ra(i) / Ra(b)) is more than 1 and at most 4. Here, the surface roughness Ra (b) and the surface roughness Ra(i) are arithmetic mean roughness values and determined by an optical and laser-based non-contact three-dimensional profile measuring device in accordance with a German standard 'DIN-4768'.
摘要:
Some embodiments of the present invention provide solid oxide cells and components thereof having a metal oxide electrolyte that exhibits enhanced ionic conductivity. Certain of those embodiments have two materials, at least one of which is a metal oxide, disposed so that at least some interfaces between the domains of the materials orient in a direction substantially parallel to the desired ionic conductivity.
摘要:
A method for manufacturing a lithium ion secondary battery includes a step of preparing a laminate comprising a solid electrolyte and a solid electrode or an electrode green sheet which is laminated on at least one surface of the solid electrolyte, and a step of providing a collector by laminating a collector material in the form of particles on the electrode or the electrode green sheet and sintering the collector material.
摘要:
Disclosed is an electrochemical cell which uses a proton conductor as the electrolyte. The electrochemical cell has excellent stability especially to a gas containing carbon dioxide. Specifically disclosed is an electrochemical cell (20B) which uses a ceramic having a composition of SrZr0.5Ce0.4Y0.1O3-δ as a proton conductive electrolyte (21). As a cathode, an intermediate layer (22) which is a thin film of a proton conductor having a composition of SrCe0.95Yb0.05O3-δ is arranged on the electrolyte (21), and a porous platinum electrode (23c) is fixed thereon. A palladium electrode (23a) is used as an anode. In a cell (20A) having no intermediate layer (22), a high overvoltage near 600 mV occurs at a low current density of 70 mA/cm2. Meanwhile, in the cell (20B) having the intermediate layer (22), a low overvoltage about 170 mV occurs at a current density of 680 mA/cm2.
摘要:
The invention is a thin film composite solid (and a means for making such) suitable for use as an electrolyte, having a first layer of a dense, non-porous conductive material (2); a second layer of a porous ionic conductive material (1); and a third layer of a dense non-porous conductive material (3), wherein the second layer has a Coefficient of thermal expansion within 5% of the coefficient of thermal expansion of the first and third layers.
摘要:
There are disclosed a method for preparation of the solid oxide fuel cell single cell and a single cell with nano (micro) meso porous cathode electrode working effectively from 723 to 1073 K. The cathode electrode possesses very large surface area (10-500 m2 g'1) with the hierarchical nano (micro) mesoporous structure, very high catalytic activity and very low oxygen electroreduction activation energy varying from 0.3-0.8 eV at -0.2...0 V cathode electrode potential versus porous Pt | O2 reference electrode in air.