Abstract: A solid oxide fuel cell comprising an anode layer, an electrolyte layer, and a two phased cathode layer. The two phased cathode layer comprises praseodymium and gadolinium-doped ceria. Additionally, the solid oxide fuel cell does not contain a barrier layer.

Abstract: The present disclosure relates to the field of materials, and in particular, to a method for preparing anti-coking Ni-YSZ anode materials for SOFC. The present disclosure provides a method for preparing a SOFC anode material, including: (1) providing the mixed powder of NiO and YSZ; (2) subjecting the mixed powder provided in step (1) to two-phase mutual solid solution treatment; (3) adjusting the particle size of the product obtained in the solid solution treatment in step (2). The SOFC anode material provided by the present disclosure could prepare the SOFC anode with good carbon deposition resistance. The anode material as a whole has the advantages of low cost, good catalytic performance, desirable electronic conductivity and well chemical compatibility with YSZ, etc. The long-term stability of cell performance is strong, and the cell preparation method is also easy to achieve industrialization.

Abstract: A fuel cell stack includes: a first fuel cell and a second fuel cell, each of which has a structure in which a solid oxide electrolyte layer having oxygen ion conductivity is provided between two electrode layers; and an interconnector that is provided between the first fuel cell and the second fuel cell and has a separator made of a metal material, wherein the interconnector has a first metal porous part and a first gas passage on a first face of the separator on a side of the first fuel cell, wherein the interconnector has a second metal porous part and a second gas passage on a second face of the separator on a side of the second fuel cell.

Abstract: A multilayer electrode includes a current collector, a first electrode mixture layer disposed on at least one surface of the current collector, and a second electrode mixture layer disposed on the first electrode mixture layer. The first and second electrode mixture layers include one or more types of conductive materials. A porosity of the conductive material contained in the second electrode mixture layer is greater than that of the conductive material contained in the first electrode mixture layer. Ion mobility to the inside of an electrode may be improved while maintaining electrical conductivity, by including a conductive material having a relatively great average particle diameter and pores in the conductive material itself. Output characteristics of a lithium secondary battery and charging and discharging performance may be improved.

Abstract: An electrochemical cell comprises a first electrode, a second electrode, and a proton-conducting membrane between the first electrode and the second electrode. The first electrode comprises Pr(Co1-x-y-z, Nix, Mny, Fez)O3-?, wherein 0?x?0.9, 0?y?0.9, 0?z?0.9, and ? is an oxygen deficit. The second electrode comprises a cermet material including at least one metal and at least one perovskite. Related structures, apparatuses, systems, and methods are also described.

Abstract: A fuel cell electrocatalyst and a fuel cell catalyst support structure are described herein. The fuel cell electrocatalyst includes the support structure. The support structure includes at least one titanium suboxide, a first dopant and a second dopant. The first dopant is a metal and the second dopant is a Group IV element. The fuel cell electrocatalyst also includes a metal catalyst deposited on the support structure.

Abstract: The disclosure set forth herein is directed to battery devices and methods therefor. More specifically, embodiments of the instant disclosure provide a battery electrode that comprises both intercalation chemistry material and conversion chemistry material, which can be used in automotive applications. There are other embodiments as well.

Abstract: An electricity storage device includes a negative electrode having a layered structure that includes an organic backbone layer containing an aromatic compound having an aromatic ring structure, the aromatic compound being in the form of dicarboxylate anions, and an alkali metal element layer containing an alkali metal element coordinated with oxygen in the dicarboxylate anions to form a backbone, a positive electrode that provides electric double-layer capacity, and a nonaqueous electrolyte solution provided between the negative electrode and the positive electrode, the nonaqueous electrolyte solution containing an alkali metal salt. The layered structure may be provided in layers by a ?-electron interaction of the aromatic compound and may have a monoclinic crystal structure belonging to the space group P21/c. The positive electrode may contain activated carbon having a specific surface area of 1,000 m2/g or more.

Abstract: A lithium secondary battery, wherein there is a pre-lithiated negative electrode such that a total irreversible capacity of a positive electrode is greater than a total irreversible capacity of the negative electrode while satisfying 150< (negative electrode discharge capacity/lithium secondary battery discharge capacity)×100<300, and a relative potential of the negative electrode with respect to lithium metal in an operating voltage range of the lithium secondary battery is in a range of ?0.1 V to 0.7 V. Such a lithium secondary battery is capable of maintaining a capacity retention of 60% or more even after 500 cycles or more while achieving an energy density per volume of 800 Wh/L or more.

Abstract: Provided are a current collector, an electrode plate, a battery and an application of the current collector. The current collector includes an insulation layer and a conductive layer. The insulation layer is configured to bear the conductive layer, the conductive layer is configured to bear an electrode active material layer. A room temperature film resistance RS of the conductive layer meets a conditional expression: 0.016?/??RS?420?/?. By the current collector of the present application, the short circuit resistance of the battery in case of an abnormal situation causing the short circuit can be greatly increased, and the short circuit current can be greatly reduced. Thus, influence of the short circuit damage on the battery is limited to a point range, and an interrupt in the current only occurs in a point range, without disrupting normal operation of the battery in a certain period time.

Abstract: A nanocomposite includes one or more graphene-based materials (GMs), a nitrogen-containing polymer (an N-polymer), and elemental sulfur (S). The nanocomposite is suitable for use as a stable, high capacity electrode for rechargeable batteries such as lithium-sulfur (Li—S) batteries. Example methods of fabricating a nanocomposite include the addition of an N-polymer to a dispersion (e.g., an aqueous dispersion) or slurry of GMs mixed with a sulfur sol. The N-polymer can interact strongly with the GMs to form a cross-linked network. In one embodiment, hydrothermal treatment of the aqueous dispersion or slurry is used to melt the sulfur such that it becomes distributed within the network formed by the GMs and the N-polymer. The resulting nanocomposite material can then be processed through the addition of one or more other binders and/or solvents, and formed into a final electrode.

Abstract: The invention provides an air electrode material powder for solid oxide fuel cells, comprising particles of a perovskite composite oxide represented by the general formula ABO3, and comprising La and Sr as the A-site elements, and Co and Fe as the B-site elements.

Abstract: A cell stack device includes a fuel cell, a first separator and a first bonding member. The fuel cell includes a solid electrolyte and a cathode that is provided on one surface of the solid electrolyte. The first separator includes a protrusion that protrudes towards the cathode. The first bonding member bonds the cathode and the first protrusion. The thickness of a first bonding member that is positioned on an outer peripheral portion is greater than the thickness of a first bonding member that is positioned at a central portion.

Abstract: Disclosed is an electrode, comprising: a metal foil; an electrode layer formed on at least one surface of the metal foil; and an insulating layer formed on the electrode layer; wherein boundary portion between the insulating layer and the electrode layer is in a state in which a part of the insulating layer engages into a part of the electrode layer, and Ls/L is 1.25 or more, wherein a reference length of a straight line in a direction in which the metal foil extends is taken as L and a boundary length along boundary between the insulating layer and the electrode layer is taken as Ls.

Abstract: A separator which includes: a porous polymer substrate having a plurality of pores; a separator base including a porous coating layer formed on at least one surface of the porous polymer substrate; and an adhesive layer formed on at least one surface of the separator base, said adhesive layer comprising a plurality of second inorganic particles and adhesive resin particles, wherein the weight ratio of the second inorganic particles to the adhesive resin particles is 5:95-60:40, and the diameter of the adhesive resin particles is 1.1-3.5 times the diameter of the second inorganic particles. An electrochemical device including the separator is also disclosed. The separator shows improved adhesion between an electrode and the separator, maintains the pores of the adhesive layer even after a process of electrode lamination, and improves the resistance of an electrochemical device.

Abstract: Nanostructured materials, and methods and apparatus for their production are provided. Nanostructured materials comprise nanofibers having nanoparticles deposited along the outer surface thereof. The size of the nanofibers and nanoparticles, and the spacing of such nanoparticles along the nanofibers may be controlled over a wide range. Nanostructured materials may comprise a plurality of such nanofibers interwoven together to form fiber cloth-like materials. Many materials may be used to form the nanofibers including polymer nanofiber materials (e.g., polyvinyl alcohol (PVA) polyvinylpyrrolidone (PVP), etc.) along with compatible nanoparticle materials (e.g., salts or other crystallizable materials).

Abstract: Provided is an apparatus containing, as a cathode catalyst, a metal oxide/carbon catalyst composition. The metal oxide/carbon catalyst composition includes 40 to 95 wt % porous Mn—Co spinel oxide nanoparticles of the formula MnxCo3-xO4. The nanoparticles have an octahedral morphology, an average particle size of 5-100 nm, and average pore sizes of 1-5 nm (where x is the atomic fraction of manganese and 3-x is the atomic fraction of cobalt). The metal oxide nanoparticles are supported on a carbon substrate that contains at least 96 atomic % carbon.

Abstract: A composition for forming a lithium reduction resistant layer includes a solvent, and a lithium compound, a lanthanum compound, a zirconium compound, and a compound containing a metal M, each of which shows solubility in the solvent, and in which with respect to the stoichiometric composition of a compound represented by the general formula (I), the lithium compound is contained in an amount 1.05 times or more and 2.50 times or less, the lanthanum compound and the zirconium compound are contained in an amount 0.70 times or more and 1.00 times or less, and the compound containing a metal M is contained in an equal amount.

Abstract: A stack (1) of intermediate temperature, metal-supported, solid oxide fuel cell units (10), each unit comprising a metal support substrate (12), a spacer (22) and an interconnect (30) that each have compression bolt holes (34), fuel inlet port (33), fuel outlet port (32) and air outlet (17) therein, wherein bolt voids (34) are formed by aligning the bolt holes and a further void (17) by aligning the air outlets, and the voids are vented, for example, to the environment or further void to prevent the build-up of fuel, moisture or ions.

Abstract: According to an aspect of the present invention, there is provided a positive electrode material which contains a positive electrode active material, and a dielectric material having a perovskite crystal structure. In the positive electrode material, in an X-ray diffraction pattern (vertical axis: diffraction intensity, horizontal axis: diffraction angle 2? (rad)) obtained by X-ray diffraction measurement using a CuK? ray, a highest intensity peak which is a peak derived from the dielectric material and has the highest intensity is in a range satisfying 2?=31° to 32°, and a half width x of the highest intensity peak satisfies the following expression: 0.22?x?0.33.