Abstract: An electrode including an electrode active material and a ceramic hydrofluoric acid (HF) scavenger is provided. The ceramic hydrofluoric acid (HF) scavenger includes M2SiO3, MAlO2, M2O—Al2O3—SiO2, or combinations thereof, where M is lithium (Li), sodium (Na), or combinations thereof. Methods of making the electrode are also provided.

Abstract: A highly reliable secondary battery is provided, in which a short circuit between a positive electrode plate and a negative electrode plate is prevented. The negative electrode plate includes a negative electrode core and a negative electrode active material layer formed on the negative electrode core. An electrode assembly includes a negative electrode core-stacked portion including stacked layers of the negative electrode core, and the negative electrode core-stacked portion is joined to a first surface of the negative electrode current collector to form a joined portion. The irregularity-formed portion is formed on a second surface of the negative electrode current collector that is opposite to the first surface and is located in a portion of the negative electrode current collector in which the joined portion is formed. A sheet member used as a cover member is disposed on the second surface so as to cover the irregularity-formed portion.

Abstract: A method includes, by a folding station: receiving an anode assembly including anode collectors connected by anode interconnects and coated with a separator; receiving a cathode assembly including cathode collectors connected by cathode interconnects; locating a first anode collector over a folding stage; locating a first cathode collector over the first anode collector to form a first battery cell between the first anode collector and the first cathode collector; folding a first anode interconnect to locate a second anode collector over the first cathode collector to form a second battery cell between the first cathode collector and the second anode collector; folding a first cathode interconnect to locate a second cathode collector over the second anode collector to form a third battery cell between the second anode collector and the second cathode collector; wetting the separator with solvated ions; and loading the anode and cathode assemblies into a battery housing.

Abstract: An electrode for a secondary battery that includes a collector and an active material layer formed on the collector. The active material layer is configured of a plurality of layers including at least a first layer formed on the collector, and a second layer formed on the first layer. An end portion of the collector at an edge portion of the electrode is widened in an electrode thickness direction with respect to a plate thickness of the collector.

Abstract: A punching system for an electrode base material is disclosed, in which the electrode base material coated with an active material on a surface of a collector is molded or cut in a predetermined shape. The punching system comprises: an unwinder on which the electrode base material in the form of a roll is mounted and around which the electrode base material is unwound; a punching device spaced a predetermined distance from the unwinder, the punching device being configured to mold or cut the electrode base material supplied from the unwinder in a predetermined shape; and a curl correcting device disposed between the unwinder and the punching device to inject or suction air onto a surface of the electrode base material while the electrode base material moves to the punching device so as to planarize the electrode base material. A punching method for an electrode base material is also disclosed.

Abstract: Provided are a positive electrode active material that can provide a secondary battery extremely excellent in output characteristics and having sufficient volume energy density, a nickel-manganese composite hydroxide as a precursor thereof, and methods for producing these. A nickel-manganese composite hydroxide is represented by General Formula (1): NixMnyMz(OH)2+?, and contains a secondary particle formed of a plurality of flocculated primary particles. The nickel-manganese composite hydroxide has a half width of a (001) plane of at least 0.40° and has an average degree of sparsity/density represented by [(a void area within the secondary particle/a cross section of the secondary particle)×100] (%) falling within a range of greater than 22% and up to 40%.

Abstract: Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof. Embodiments include a sulfur-doped cathode material within a lithium-sulfur battery, where the cathode is collector-less and is formed of a binder-free, monolithic, polyimide-derived carbon aerogel. The carbon aerogel includes pores that surround elemental sulfur and accommodate expansion of the sulfur during conversion to lithium sulfide. The cathode and underlying carbon aerogel provide optimal properties for use within the lithium-sulfur battery.

Abstract: A fuel cell module may include: a cell stack device including a cell stack including an array of a plurality of fuel cells, a manifold which supplies a fuel gas to each of the fuel cells, and a reformer which reforms a raw fuel; an oxygen-containing gas flow channel through which the oxygen-containing gas flows; an oxygen-containing gas introduction plate which supplies the oxygen-containing gas to each of the plurality of fuel cells; a housing including a box body of which one side is opened to provide an opening and a lid (closed plate) which closes the opening; a gas pipe joint, an ignition heater, a thermocouple, etc. which are a plurality of insertion members inserted from an outside of the housing into an accommodation chamber, the respective insertion members being inserted through one surface (lid surface) of the housing.

Abstract: The present application relates to methods for depositing two-dimensional materials (e.g., MoS2, WS2, MoTe2, MoSe2, WSe2, BN, BN—C composite, and the like) onto lithium electrodes. Battery systems incorporating lithium metal electrodes coated with two-dimensional materials are also described. Methods may include intercalating the two-dimensional materials to facilitate flow of Lithium ions in and out of the lithium electrode. Two-dimensional material coated lithium electrodes provide for high cycling stability and significant performance improvements. Systems and methods further provide electrodes having carbon structures (e.g., carbon nanotubes (CNTs), graphene, porous carbon, free-standing 3D CNTs, etc.) with sulfur coatings.

Abstract: In a cell stack, each of the plurality of the electrochemical cells includes an alloy member, a first electrode layer, a second electrode layer, and an electrolyte layer. The alloy member includes a base member constituted by an alloy material containing chromium, a coating film that covers at least a part of a surface of the base member, and a separation inhibiting portion that inhibits the coating film from separating from the base member. The number of the separation inhibiting portions included in the alloy member of the central electrochemical cell is larger than the number of the separation inhibiting portions included in the alloy member of the end electrochemical cell.

Abstract: The present invention discloses a micro-capsule type silicon-carbon composite negative electrode material, and the negative electrode material comprises a current collector and a silicon-carbon coating layer formed by drying silicon-carbon paste coating the current collector; the silicon-carbon slurry comprises a carbonaceous paste and silicon capsule powder dispersed in the carbonaceous paste; the carbonaceous paste comprises a dispersing agent, and a carbon material, a first conductive agent and a first binder dispersed in the dispersing agent; the silicon capsule powder has micro-capsule structures comprising silicon powder and a second binder coating the surface of the silicon powder and in which the silicon powder is a core and the second binder is an outer shell; and the first binder is different from the second binder. The improved silicon-carbon composite negative electrode material of the present disclosure has excellent effects in cycle performance, coulombic efficiency and rate capability.

Abstract: The present disclosure provides methods of making and applying metallized graphene fibers in bioelectronics applications. For example, platinized graphene fibers may be used as an implantable conductive suture for neural and neuro-muscular interfaces in chronic applications. In some embodiments, an implantable electrode includes a multi-layer graphene-fiber core, an insulative coating surrounding the multi-layer graphene-fiber core, and a metal layer disposed between the multi-layer graphene-fiber core and the insulative coating.

Abstract: The current invention includes an additive manufactured electrode that may be used for a flow battery system. In some embodiments, the electrode may include a composite material and/or at least one flow channel to direct, or at least influence, flow of electrolyte. The flow channel can be formed onto a surface and/or within a body of the electrode, and may be used to generate fluid pathways that cause the electrolyte to flow in a certain manner. The composite material may include a rigid core and a flexible compressible outer layer that may improve reactions zones, enhance mechanical properties, and/or provide low-pressure paths for electrolyte to flow.

Abstract: The present invention relates to a method for regenerating an electrolyte liquid of a flow battery, and a device for regenerating an electrolyte liquid of a flow battery. The method involves operating a flow battery, stopping the operation of the flow battery, mixing the anode electrolyte liquid and the cathode electrolyte liquid of the flow battery, electrically oxidizing or reducing the mixed electrolyte liquid and dividing the oxidized or reduced electrolyte liquid into each of a cathode electrolyte liquid storage unit and a anode electrolyte liquid storage unit. The device includes a flow battery and a flow battery for regeneration.

Abstract: The present invention provides a high voltage battery rack, including: a plurality of battery modules electrically connected with each other; and a rack controller configured to control the plurality of battery modules, wherein each of the plurality of battery modules comprises: external terminals; and an MSD module configured to determine whether a voltage is applied to the external terminals during operation.

Abstract: A method for manufacturing a reinforced separator including pretreating a porous support using a first solution including a first ionic polymer and ethanol; and impregnating a second solution including a second ionic polymer and a solvent into the pretreated porous support, wherein a concentration of the first ionic polymer in the first solution is lower than a concentration of the second ionic polymer in the second solution, a reinforced separator manufactured using the same, and a redox flow battery.

Abstract: Filled carbon nanotubes (CNTs), methods of synthesizing the same, and lithium-ion batteries comprising the same are provided. In situ methods (e.g., chemical vapor deposition techniques) can be used to synthesize CNTs (e.g., multi-walled CNTs) filled with metal sulfide nanowires. The CNTs can be completely (or nearly completely) and continuously (or nearly continuously) filled with the metal sulfide fillers up to several micrometers in length. The filled CNTs can be synthesized on a carbon substrate. A lithium-ion battery can comprise a cathode, an anode comprising filled CNTs as described herein, and an electrolyte in contact with the cathode and/or the anode.

Abstract: A battery includes: a unit cell including an electrode layer, a counter electrode layer facing the electrode layer, and a solid electrolyte layer disposed between the electrode layer and the counter electrode layer; an electrode current collector in contact with the electrode layer; a counter electrode current collector in contact with the counter electrode layer; and a seal disposed between the electrode current collector and the counter electrode current collector. The unit cell is disposed between the electrode current collector and the counter electrode current collector. The seal includes at least one protrusion protruding toward the solid electrolyte layer, and at least part of the at least one protrusion is in contact with the solid electrolyte layer.

Abstract: A gas diffusion layer for an electrolyser or for a fuel cell comprises a first nonwoven layer of metal fibers provided for contacting a proton exchange membrane, a second nonwoven layer of metal fibers, and a third porous metal layer. The first nonwoven layer of metal fibers comprises metal fibers of a first equivalent diameter. The second nonwoven layer of metal fibers comprises metal fibers of a second equivalent diameter. The second equivalent diameter is larger than the first equivalent diameter. The third porous metal layer comprises open pores. The open pores of the third porous metal layer are larger than the open pores of the second nonwoven layer of metal fibers. The second nonwoven layer is provided in between and contacting the first nonwoven layer and the third porous metal layer. The second nonwoven layer is metallurgically bonded to the first nonwoven layer and to the third porous metal layer.

Abstract: Briefly, a carbon working electrode is described that has a plastic substrate of polyethylene, polypropylene, polystyrene, polyvinyl chloride, or polylactic acid, and may be formed into an elongated wire. The carbon material coats the plastic substrate, and may be, for example, graphene, diamagnetic graphite, pyrolytic graphite, pyrolytic carbon, carbon black, carbon paste, or carbon ink, which is aqueously dispersed in an elastomeric material such as polyurethane, silicone, acrylates or acrylics. Optionally, selected additives may be added to the carbon compound prior to it being layered onto the plastic substrate. These additives may, for example, improve electrical conductivity or sensitivity, or act as a catalyst for target analyte molecules.