Abstract: A non-aqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material containing a composite oxide particle that includes Ni, Co and Li, and also includes at least one among Mn and Al, and the ratio of Ni to the total number of moles of metal elements excluding Li is 50 mol % or more. In the composite oxide particle, the ratio (A/B) of a BET specific surface area (A) to a theoretical specific surface area (B) determined by the following formula is more than 1.0 and less than 3.3. Theoretical specific surface area (B) (m2/g)=6/(true density (g/cm3)×volume average particle diameter (?m)).

Abstract: A battery module includes a cell stack in which a plurality of unit cells including terminal parts are aligned in a first direction and an insulating member surrounds the plurality of unit cells; and a module housing in which a plurality of receiving parts, into each of which the cell stack is configured to be inserted, are provided and are aligned in a first direction and a second direction perpendicular to the first direction, wherein each of the plurality of receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack. The cell stacks adjacent to each other in the second direction are electrically connected to each other, and the cell stacks adjacent to each other in the first direction are electrically disconnected from each other, when not connected to an end module.

Abstract: An object of the present invention is to provide, in the manufacture of a membrane-catalyst assembly including a polymer electrolyte membrane and a catalyst layer bonded to the polymer electrolyte membrane, a method that achieves both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer and the electrolyte membrane with high productivity. A main object of the present invention is to provide a method of manufacturing a membrane-catalyst assembly including an electrolyte membrane and a catalyst layer bonded to the electrolyte membrane, the method including a liquid application step of applying a liquid to a surface of the catalyst layer before bonding, and a thermocompression bonding step of bonding, to the electrolyte membrane, the catalyst layer to which the liquid is applied by thermocompression bonding.

Abstract: A heat dissipation structure for a battery includes a plurality of heat dissipation members. The heat dissipation members are each provided with: a heat conductive sheet having a shape that extends while winding in a spiral shape for transferring the heat from the heat source, a cushion member which is provided on an annular rear surface of the heat conductive sheet and can be more easily deformed to conform to the outer surface shape of the heat source than the heat conductive sheet, and a penetration path penetrating in the direction in which the heat conductive sheet extends while winding. The plurality of heat dissipation members is connected to each other by connection members in a state of being aligned in a direction perpendicular to the direction in which the beat conductive sheet extends while winding.

Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.

Abstract: In a heat, dissipating structure, a plurality of heat dissipating members for a heat source are connected. Each heat dissipating member has a heat conduction sheet that extends while winding in a spiral shape for conducting the heat from the heat source; a cushion member which is provided on an annular rear side of the heat conduction sheet and can be more easily deformed corresponding to the outer surface shape of the heat source than the heat conduction sheet; an adhesive layer that fixes the heat conduction sheet and the cushion member and is more easily deformed than the heat conduction sheet; and a through passage penetrating in the direction in which the heat conduction sheet extends while being wound. The heat dissipating members are connected by connection members in a state of being aligned perpendicular to the direction in which the heat conduction sheet extends while being wound.

Abstract: Materials for electrochemical cells are provided. BaZr0.4Ce0.4M0.2O3 compounds, where M represents one or more rare earth elements, are provided for use as electrolytes. PrBa0.5Sr0.5Co2?xFexO5+? is provided for use as a cathode. Also provided are electrochemical cells, such as protonic ceramic fuel cells, incorporating the compounds as electrolytes and cathodes.

Abstract: A humidifier for a fuel cell includes: a housing; a first space provided in the housing; a moist air supply port connected to the housing so as to communicate with the first space and configured to supply moist air discharged from a fuel cell stack; a humidification unit provided in the first space; a second space disposed separately from the first space and provided in the housing so as to communicate with the humidification unit; and an inflow gas discharge port connected to the housing so as to communicate with the second space and configured to discharge inflow gas that has passed through the humidification unit, which can simplify a structure of the humidifier and improve spatial utilization and a degree of design freedom.

Abstract: A secondary battery includes: an electrode assembly; a case including an opening and accommodating the electrode assembly; a cap assembly sealing the opening of the case and having a valve hole formed therein; and a valve vertically movably installed in the valve hole and selectively openable and closeable, to allow an internal gas to be discharged.

Abstract: A nanowire catalyst for a fuel cell has a porous structure in which first and second pores having predetermined pore sizes are uniformly dispersed inside and on the surface thereof at a predetermined volume ratio. This enables the efficient exposure of active sites and efficient mass transfer, thereby improving fuel cell performance.

Abstract: The present disclosure relates to a method of manufacturing catalyst slurry for fuel cells capable of greatly improving efficiency in use of catalyst metal and a method of manufacturing an electrode for fuel cells using the catalyst slurry manufactured using the method. Specifically, the method of manufacturing catalyst slurry for fuel cells includes preparing a catalyst including a porous carrier and catalyst metal, introducing the catalyst, a solvent, and an ionomer into a chamber, and infiltrating the ionomer into pores of the carrier.

Abstract: A novel silver-lithium-iodine solid-state energy device and system are disclosed. The rechargeable, self-assembled, dual-function, metal-iodide battery exhibits small size and high deliverable power. Inert until activation, the device may be stored for long periods of time. Upon activation, the device assembles the required electrochemical moieties for operation without external intervention. The device limits short-circuiting and self-discharge of the system by spontaneous reactions at the electrode/electrolyte interfaces, and thus is self-healing. By incorporating both silver and lithium in the same system, a dual function is achieved, whereby the characteristics of a lithium-based battery dominate at a low load and those of a silver-based battery dominate under a high load.

Abstract: The present disclosure provides a separator for a rechargeable lithium battery and a rechargeable lithium battery including same, the separator includes a porous substrate; and an adhesive layer formed on the porous substrate. The adhesive layer includes a particle-type binder having a core-shell structure including a core and a shell surrounding the core, the core includes a first polymer having a glass transition temperature of less than or equal to 30° C., the shell includes a second polymer having a glass transition temperature of greater than or equal to 40° C., and the particle-type binder has a diameter of 50 nm to 500 nm.

Abstract: A battery module for construction of a battery pack includes a battery sealed in a rectangular housing with front and rear open ends closed by front and rear plates, respectively. The rear plate includes a plurality of rear plate bores in axial alignment with a plurality of housing bores proximal the rear open end of the housing. The front plate includes a plurality of front plate bores in axial alignment with a plurality of housing bores proximal the front open end of the housing. The front plate additionally includes positive and negative terminals electrically connected to the battery.

Abstract: An object provides a power generation apparatus performing the purification of an Al alloy melt using scrap as raw material. A power generation apparatus includes: a container body with aluminum alloy melt and molten salt in a liquid junction with the aluminum alloy melt; an anode which is in contact with the aluminum alloy melt; and a cathode which is in contact with the molten salt. DC power is obtained from between the anode and the cathode by an anode reaction on the aluminum alloy melt side and a cathode reaction on the molten salt side. When the aluminum alloy melt and the molten salt are separated by a separator allowing ionic conduction between the aluminum alloy melt and molten salt, the power generation efficiency is enhanced. The amount of a reactant in the Al alloy melt is monitored by measuring the electrical quantity associated with the power generation.

Abstract: A battery pack including battery cells including a first end portion and a second end portion in a length direction thereof; a cell holder having a first surface through which portions of the first end portions are exposed in the length direction; a circuit board having a first surface through which the portions of the first end portions and a portion of the first surface of the cell holder are exposed; measurement members connecting the battery cells to the circuit board; and a photocurable adhesive surrounding the measurement members, wherein the first end portions, the first surface of the cell holder, and the first surface of the circuit board are arranged in a stepped manner at least partially exposed to an outside of the circuit board in the length direction of the battery cells and are at least partially covered by the photocurable adhesive.

Abstract: A cathode active material for a lithium secondary battery includes a lithium-transition metal composite oxide particle having a lattice strain (?) of 0.18 or less, which is calculated by applying Williamson-Hall method defined by Equation 1 to XRD peaks measured through XRD analysis, and having an XRD peak intensity ratio of 8.9% or less, which is defined by Equation 2. By controlling the lattice strain and XRD peak intensity ratio of the lithium-transition metal composite oxide particle, a lithium secondary battery with improved life-span characteristics as well as output characteristics is provided.

Abstract: A method for making an improved fuel cell using a porosity gradient design for gas diffusion layers in a hydrogen fuel cell, a gas diffusion layer made by the method and a fuel cell containing the gas diffusion layer.

Abstract: A gas diffusion layer includes: a conductive particle; and a fluororesin, and the fluororesin includes a first fiber having a first average fiber diameter and a second fiber having a second average fiber diameter different from the first average fiber diameter.

Abstract: A method for making an improved fuel cell using a porosity gradient design for gas diffusion layers in a hydrogen fuel cell, a gas diffusion layer made by the method and a fuel cell containing the gas diffusion layer.