Abstract: A method includes a forming step of forming a first metal separator and a second metal separator each including a protruding sealing bead portion and a protruding stopper bead portion; a joining step of joining surfaces of the first metal separator and the second metal separator on sides opposite to sides on which their respective sealing bead portions protrude, and attaching seal members in an extension direction or on distal ends of the sealing bead portion; and a preload applying step of applying preload to a bead seal section formed of one pair of the sealing bead portions and the seal members and a stopper section formed of one pair of the stopper bead portions in a height direction thereof, thereby plastically deforming the bead seal section and the stopper section simultaneously.

Abstract: The present disclosure relates to a solid electrolyte battery including a negative electrode including: a negative electrode current collector; a first negative electrode active material layer formed on at least one surface of the negative electrode current collector and including a first negative electrode active material, a first solid electrolyte and a first electrolyte salt; and a second negative electrode active material layer formed on the first negative electrode active material layer and including a second negative electrode active material, a second solid electrolyte, a second electrolyte salt and a plasticizer having a melting point of 30-130° C., the solid electrolyte battery is activated at a temperature between the melting point of the plasticizer and 130° C., and a solid electrolyte interface (SEI) layer is formed on the surface of the second negative electrode active material.

Abstract: Disclosed herein is a fuel-cell unit cell, at a first part of which: the fuel-cell unit cell has a bonding layer; between an outer peripheral edge portion of a first gas diffusion layer and a portion of a membrane-electrode assembly on an inner side from an outer peripheral edge portion thereof, the bonding layer bonds these portions together; between a first separator and the outer peripheral edge portion of the membrane-electrode assembly, the bonding layer is bonded to at least the outer peripheral edge portion of the membrane-electrode assembly; and between the first separator and a support frame and/or between a second separator and the support frame, the bonding layer bonds these parts together.

Abstract: A power storage module includes an electrode laminate in which bipolar electrodes are laminated and a sealing body formed of a resin. The bipolar electrode includes an electrode plate, a positive electrode provided on one surface of the electrode plate, and a negative electrode provided on another surface of the electrode plate. The sealing body is provided on a side surface of the electrode laminate to surround an edge portion of the bipolar electrode. The sealing body includes a first resin portion and a second resin portion. The first resin portion is welded to the edge portion of the bipolar electrode. The second resin portion surrounds the first resin portion from an outer side along the side surface. A mold shrinkage factor of the first resin portion is lower than a mold shrinkage factor of the second resin portion.

Abstract: A negative electrode used in a nickel metal hydride secondary battery includes a negative electrode core body and a negative electrode mixture carried on the negative electrode core body. The negative electrode mixture includes hydrogen storage alloy powder which is an aggregate of hydrogen storage alloy particles, a binder, and a thickener. The hydrogen storage alloy particles have a volume mean particle size of 40 ?m or less and a concentration of chlorine of not less than 180 ppm to not more than 780 ppm.

Abstract: A method of preparation and application for a glass ceramic sealing thin strip with high sealing performance, differing from using conventional glass ceramic packaging paste applied to the junction of the cell stack assembly and connecting plates. The glass ceramic sealing thin strip of present invention utilizes tape casting to produce a single layer or multi-layer stacking in accordance with the required thickness of the glass-ceramic sealing thin strip, and cutting the glass ceramic sealing thin strips from molds in accordance with the geometry of cell stacks with equal thickness of the glass ceramic sealing thin strip for SOFC cell stack assembly, aiming to overcome the setbacks of the conventional dispensing method with glass ceramic packaging paste that makes the thickness difficult to control, and to effectively improve sealing performance of the cell stack assembly and the power generation efficiency, and achieve commercial application with mass production.

Abstract: Provided is a catalyst for fuel cells including an oxygen atom, a nitrogen atom, a pentavalent phosphorus atom, and a transition metal atom, in which when the transition metal atom is represented by M, the catalyst for fuel cells is represented by a chemical formula MOxNyPz, and the transition metal atom is at least one selected from the group consisting of a titanium atom, a tantalum atom, a niobium atom, and a zirconium atom.

Abstract: Methods, systems, and apparatuses are described for implementing electrochemical energy storage devices using a liquefied gas electrolyte. The mechanical designs of an electrochemical device to house a liquefied gas electrolyte as well as methods of filling and sealing said device are presented.

Abstract: Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.

Abstract: Disclosed herein is a method of manufacturing a micro-supercapacitor with an increased storage capacity of electrical energy. The method is a method of manufacturing a high-capacity micro-supercapacitor including an anode and a cathode separated from each other, which includes forming a pair of current collectors by discharging conductive ink on a substrate surface with a 3D printer, and forming an electrode consisting of an anode and a cathode by stacking an electrode constituting material in the form of a plurality of layers on each of the pair of current collectors using the 3D printer.

Abstract: Provided is a slurry composition for a positive electrode that has excellent dispersibility and enables production of a secondary battery that can display good output characteristics. The slurry composition for a non-aqueous secondary battery positive electrode contains a positive electrode active material, a conductive material, a particulate polymer, and a polyhydric alcohol polycondensate. The positive electrode active material includes an iron-containing compound. The particulate polymer includes a hydroxyl group-containing monomer unit.

Abstract: The present invention relates to a secondary battery negative electrode binder composition with which a stable negative electrode active material layer can be formed, which can follow volumetric changes in the negative electrode, whereby a secondary battery can be manufactured that achieves a high charge/discharge capacity and allows for improvement in charge/discharge cycle characteristics. Provided is a binder composition for fabricating a secondary battery negative electrode, containing an element capable of forming an alloy with lithium as an active material, which is a secondary battery negative electrode binder composition comprising an emulsion in which polymer particles derived from an ethylenically unsaturated monomer are dispersed in an aqueous solution of a polyvinyl alcohol-based resin, wherein the ratio of the polyvinyl alcohol-based resin/polymer particles is 60/40 to 99/1, as a weight ratio of resin solids.

Abstract: The invention relates to bipolar plates for electrochemical fuel cell assemblies, and in particular to configurations of bipolar plates allowing for multiple fluid flow channels for the passage of anode, cathode and coolant fluids.

Abstract: The present disclosure provides a battery pack including: multiple flat battery cells, a housing, a bearing plate and an upper cover, wherein a middle recessed portion is formed between the protruding battery cell anode and battery cell cathode disposed on the top portion of each of the multiple battery cells; a surface of the middle recessed portion is provided with at least one seal-breakable opening arranged to discharge the gas generated in the battery cell when broken; the multiple middle recessed portions at the top portions of the multiple battery cells form a battery top portion through-slot; a bottom portion of the bearing plate is provided with a bearing plate bottom portion through-slot; the bearing plate bottom portion through-slot is press-fitted with the battery top portion through-slot to form a lateral gas discharging passage wherein one end of the lateral gas discharging passage is provided with an outlet, and another end of the lateral gas discharging passage is blocked.

Abstract: A proton conducting film includes a polymer having a first part and a second part which are connected by a covalent bond and a plasticizer. The first parts aggregate with each other to form a domain at an operation temperature of the proton conducting film, and the second part crosslinks the domains. The second part has a proton accepting group, and the plasticizer contains a proton donating compound having a pKa of 2.5 or less, and thus the plasticizer penetrates into the second part, and a glass transition temperature of the polymer is lowered compared to when the plasticizer is not included.

Abstract: A fuel cell includes a fuel cell stack. A pressure plate is arranged on one side of the fuel cell stack. The pressure plate includes a hole, and a tie rod assembly has a tie rod received in the hole. A nut with a conical surface is secured to the tie rod. An isolator is arranged in the hole between the tie rod assembly and the pressure plate. The isolator has a conical portion, and the conical surface engages the conical portion to provide a conical interface. The tie rod assembly applies a clamp load on the fuel cell stack via the conical interface.

Abstract: A fuel cell joint separator includes a passage bead and an outer bead. In a dual seal section where the passage bead and the outer bead extend next to each other, a ridge protruding from one surface of a metal separator is formed integrally with the metal separator, between the passage bead and the outer bead. The height of the ridge is smaller than the height of the bead seal compressed by the tightening load. A joining line is provided between the outer bead and the ridge.

Abstract: A redox flow battery including an electrode assembly, the electrode assembly including a carbon block having pores and a flow frame having a first and a second surface, wherein the carbon block is accommodated on one or both of the first and second surfaces.

Abstract: A fluid flow plate having first and second fluid flow channels on a fluid flow plate with an active area of fluid flow fields having one or more arrays of fluid transfer points (301, 302, 303) disposed along an edge of the flow field for communicating fluid into or out of flow channels. A first and second distribution gallery (15, 16, 21) with peripheral edge portions bounded by the arrays including at least one pair of inlets in external edges of the fluid flow plate and wherein the first fluid distribution gallery is shaped such that the combined lengths of the first-gallery second peripheral edge portions are longer than the first-gallery first peripheral edge portion, and wherein the internal edges of the flow plate comprise edges of a hole, aperture, or port passing through the flow plate, and the external edges of the flow plate comprise an outer peripheral edge of the plate. The edges each may comprise a castellated structure (31, 32, 34).

Abstract: A fuel cell separator member of a fuel cell stack includes a metal separator on which a seal bead is formed, and a pressure receiving member provided on a surface of the metal separator, separately from the metal separator. The pressure receiving member is provided along a seal bead, and the height of the pressure receiving member is lower than the height of the seal bead in the state where the tightening load is applied and no impact load is applied.