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: 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: 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: 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: 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: 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 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.

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising fluorinated cyclic compounds.

Abstract: A method of forming anodes for electrochemical devices by laminating a metal foil to a current collector and creating anode-active-material patches, composed of the metal foil, that are spaced from one another by inter-patch regions, wherein each inter-patch region provides a location for forming one or more electrical tabs of the finished anodes. The method can further include applying conductive-coating patches to the current collector prior to laminating the metal foil to the current collector, wherein each conductive-coating patch corresponds to one of the anode-active-material patches. In some embodiments, the conductive-coating patches can assist with forming the anode-active-material patches and/or can improve the cycling performance of an electrochemical device made using anodes made therewith. Anodes containing anode-active material and conductive coatings applied to current collectors are also disclosed.

Abstract: Nanoporous oxygen reduction catalyst material comprising PtNiIr, the catalyst material preferably having the formula PtxNiyIrz, wherein x is in a range from 26.6 to 47.8, y is in a range from 48.7 to 70, and z is in a range from 1 to 11.4. The nanoporous oxygen reduction catalyst material is useful, for example, in fuel cell membrane electrode assemblies.

Abstract: Disclosed is a sulfur-based electrode active material with which a nonaqueous electrolyte secondary battery that has a large capacity and exhibits less deterioration of the cycle characteristics can be obtained even when an electrode is employed in which the sulfur-based electrode active material is used as an electrode active material and an aluminum foil is used as a current collector. Also disclosed is a method for producing an organosulfur electrode active material, including a step of obtaining an organosulfur compound by heat-treating an organic compound and sulfur and a step of treating the organosulfur compound with a basic compound. The organosulfur compound is preferably sulfur-modified polyacrylonitrile, and the basic compound is preferably ammonia. The organosulfur compound may be treated with the basic compound after the organosulfur compound is ground, or may be ground in a medium that contains the basic compound.

Abstract: An object of the present invention is to provide a method for manufacturing a secondary battery with enhanced insulating reliability without degrading the performance of an active material mixture layer formed on an electrode. The present invention provides a method for manufacturing a prismatic secondary battery (100) including a negative electrode (41) having a negative electrode current-collecting foil (411), a negative electrode mixture layer (412) formed thereon, and an insulating layer (413) formed on the negative electrode mixture layer (412). The method of the present invention includes a step of forming the negative electrode mixture layer (412) and the insulating layer (413) by concurrently applying an active material mixture slurry and an insulating layer dispersion liquid to the negative electrode current-collecting foil (411). Each ceramic particle (413a) has a plate shape with an aspect ratio greater than or equal to 2.0 and less than or equal to 5.0.

Abstract: A graphene-enabled hybrid particulate for use as a lithium-ion battery anode active material, wherein the hybrid particulate is formed of a single or a plurality of graphene sheets and a single or a plurality of fine primary particles of a niobium-containing composite metal oxide, having a size from 1 nm to 10 ?m, and the graphene sheets and the primary particles are mutually bonded or agglomerated into the hybrid particulate containing an exterior graphene sheet or multiple exterior graphene sheets embracing the primary particles, and wherein the hybrid particulate has an electrical conductivity no less than 10?4 S/cm and said graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the niobium-containing composite metal oxide combined.

Abstract: The present application relates to an anode active material and an anode, an electrochemical device and an electronic device using the same. Specifically, the present application provides an anode active material, including a lithiated silicon-oxygen material and a coating layer, where the coating layer and the lithiated silicon-oxygen material at least have one or more structural units selected from formulae CF2a, CHFb and CH2c therebetween, where a, b, and c are integers greater than or equal to 6. The anode active material of the present application has high stability and is suitable for being subjected to aqueous processing to obtain the anode.

Abstract: A graphene-enhanced transition metal fluoride or chloride hybrid particulate for use as a lithium battery cathode active material, wherein the particulate is formed of a single or a plurality of graphene sheets and a plurality of fine transition metal fluoride or chloride particles with a size smaller than 10 ?m (preferably sub-micron or nano-scaled), and the graphene sheets and the particles are mutually bonded or agglomerated into an individual discrete particulate with at least a graphene sheet embracing the transition metal fluoride or chloride particles, and wherein the particulate has an electrical conductivity no less than 10?4 S/cm and the graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the transition metal fluoride or chloride combined.

Abstract: The method for fabricating an electrochemical device includes the following successive steps: a first stack successively including a first electrode and an electrically insulating electrolyte having a first main surface in contact with the first electrode and an opposite second main surface; a polymerisation step of the electrolyte so as to define at least a first area presenting a first degree of cross-linking and a first cross-linking density and a second area presenting a second degree of cross-linking different from the first degree of cross-linking and/or a second cross-linking density different from the first cross-linking density, said at least first and second areas connecting the first main surface with the second main surface; and placing the second electrode in contact with the electrolyte.

Abstract: A phosphate ester compound can include a cation and an anion, the anion being an alkyl phosphate. The phosphate ester compound can be a phosphate ester ionic liquid. The phosphate ester compound can be manufactured in a solvent-free environment. The phosphate ester compound can be used as an electrolyte in a battery, for example, a lithium-ion battery.

Abstract: An all solid battery includes: a solid electrolyte layer; a first electrode layer that is formed on a first main face of the solid electrolyte layer; a first electric collector layer that is formed on a face of the first electrode layer, the face being opposite to the first main face; a second electrode layer that is formed on a second main face of the solid electrolyte layer; and a second electric collector layer that is formed on a face of the second electrolyte layer, the face being opposite to the second main face, wherein at least one of the first electric collector layer and the second electric collector layer includes Pd and board-shaped graphite carbon, wherein a volume ratio of Pd and the board-shaped graphite carbon in the at least one of the first electric collector layer and the second electric collector layer is 20:80 to 80:20.