Abstract: To melt and diffuse metallic foreign bodies immixed in electrodes of a nonaqueous electrolyte secondary battery before initial charging, electrodes wound with a separator between a cathode plate and an anode plate are placed in a battery case and the battery case is filled with an electrolyte. After the case has been filled, the electrolyte is allowed to permeate into the electrodes. Then, the electrolyte-filled battery is placed in a processing device, and fixed with a surface pressure between at least 0.1 MPa and 5.0 MPa. Thereafter, the cathode potential is adjusted and held for a period of one hour and 35 hours while the battery remains fixed, after which the pre-initial charging process is terminated.

Abstract: Process for producing an alkali metal-sulfur battery, comprising: (a) Preparing a first conductive porous structure; (b) Preparing a second conductive porous structure; (c) Injecting or impregnating a first suspension into pores of the first conductive porous structure to form an anode electrode, wherein the first suspension contains an anode active material, an optional conductive additive, and a first electrolyte; (d) Injecting or impregnating a second suspension into pores of the second conductive porous structure to form a cathode electrode, wherein the second suspension contains a cathode active material (selected from sulfur, lithium polysulfide, sodium polysulfide, sulfur-polymer composite, organo-sulfide, sulfur-carbon composite, sulfur-graphene composite, or a combination thereof), an optional conductive additive, and a second electrolyte; and (e) Assembling the anode electrode, a separator, and a cathode electrode into the battery.

Abstract: To provide a graphene compound having an insulating property and an affinity for lithium ions. To increase the molecular weight of a substituent included in a graphene compound. To provide a graphene compound including a chain group containing an ether bond or an ester bond. To provide a graphene compound including a substituent containing one or more branches. To provide a graphene compound including a substituent including at least one of an ester bond and an amide bond.

Abstract: According to one embodiment, the secondary battery includes a container, an electrode structure provided in the container and an electrolyte provided in the container. The electrode structure includes a positive electrode, a negative electrode, and a separator provided between the positive electrode and the negative electrode. The separator includes an organic fiber layer accumulated on at least one of the positive electrode and the negative electrode. The organic fiber layer has contacts in which the organic fiber intersects with itself. The form of the intersections is changed by a tensile stress.

Abstract: A separator for a rechargeable lithium battery includes a backbone polymer, an ion conductive polymer coating the backbone polymer, and an electrolyte solution immersing the backbone polymer, wherein the backbone polymer and the ion conductive polymer are different from each other.

Abstract: A fuel cell system includes a fuel cell stack, a compressor that supplies cathode gas to the fuel cell stack, and a controller that controls constituent components of the fuel cell system including the compressor. The controller controls the compressor, such that a supply period in which the compressor supplies the cathode gas and a stop period in which supply of the cathode gas is stopped appear alternately, when the fuel cell stack is not required to generate electric power, and the supply period is longer than the stop period, and such that the flow rate of the cathode gas supplied by the compressor in the supply period is smaller than the flow rate in the case where the fuel cell stack is required to generate electric power.

Abstract: To provide a nonaqueous electrolyte secondary battery that suppresses elution of Al from a positive electrode current collector formed of aluminum or an aluminum alloy, and is superior in thermal characteristics and input-output characteristics. Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode has a positive electrode current collector formed of aluminum or an aluminum alloy. The electrolytic solution contains a metal salt and an organic solvent having a heteroelement. Regarding an intensity of a peak derived from the organic solvent in a vibrational spectroscopy spectrum of the electrolytic solution, Is>Io is satisfied when an intensity of an original peak of the organic solvent is represented as Io and an intensity of a peak resulting from shifting of the original peak is represented as Is.

Abstract: A polyolefin multilayer microporous membrane is disclosed. The polyolefin multilayer microporous membrane has a low air permeability value, maintains high porosity and mechanical strength even when formed into a thin film. The polyolefin multilayer microporous membrane also has excellent impedance characteristics. The polyolefin multilayer microporous membrane has excellent battery characteristics when used as a battery separator.

Abstract: Energy storage devices having hybrid anodes can address at least the problems of active material consumption and anode passivation that can be characteristic of traditional batteries. The energy storage devices each have a cathode separated from the hybrid anode by a separator. The hybrid anode includes a carbon electrode connected to a metal electrode, thereby resulting in an equipotential between the carbon and metal electrodes.

Abstract: A redox flow battery system includes pumps, a pump control unit, an SQC measuring unit, and a terminal-voltage measuring unit. The pump control unit includes a reference-flow-rate acquiring unit which acquires a reference flow rate of the pumps corresponding to the state of charge of electrolytes; a terminal-voltage determination unit which determines whether or not a terminal voltage of a battery cell reaches the lower limit or the ripper limit of a predetermined voltage range; and a pump-flow-rate setting unit which sets the reference flow rate for the pumps in the case where the terminal voltage does not reach the upper or lower limit of the predetermined voltage range, and sets a flow rate obtained by adding a predetermined flow rate to the reference flow rate for the pumps in the ease where the terminal voltage reaches the upper or lower limit of the predetermined voltage range.

Abstract: A secondary battery includes an electrode assembly having a curved shape and comprising a first electrode plate, a second electrode plate, and a separator located between the first electrode plate and the second electrode plate, an exterior member comprising a first exterior member on a first surface of the electrode assembly, a second exterior member on a second surface of the electrode assembly, and wings providing a sealing surface by coupling the first exterior member and the second exterior member, and a label covering an outer surface of the exterior member, wherein the label comprises a label body sheet that is attached to the first exterior member, and a plurality of label wings that are folded from a first edge of the label body sheet in a first direction, cover the exterior member from side surfaces of the exterior member to the second exterior member, and have at least one cutting slot.

Abstract: A battery electrode structure includes a substrate, a first conductive layer and a plurality of active particles. The substrate has a substrate surface. The first conductive layer is disposed on the substrate surface. Each of the active particles has a first portion conformally engaged with a surface of the first conductive layer and a second portion protruding outwards from the surface of the first conductive layer.

Abstract: An energy storage device, such as a capacitor or battery, is provided with a detector and detector support for signaling an expansion of the case caused by a buildup of internal pressure, wherein the detector support is provided with a base attached to a periphery of a side of the case, and the detector support has a superstructure for positioning the detector over an interior of the side of the case, whereby the interior expands a greater distance than the periphery of the side of the case in response to internal pressure.

Abstract: A battery cell comprising a composite water-responsive safety layer and/or composite water- and pH-responsive safety layer to protect against tissue damage and/or electrolysis, when the battery cell is exposed to aqueous solution or tissue, is provided. The composite water-responsive safety layer and/or composite water- and pH-responsive safety layer is adapted to change from a non-electronically conducting state to an electronically conducting state.

Abstract: The present invention relates to a packaging material for a power storage device including at least a substrate layer, an adhesive layer, a metal foil layer, an anti-corrosion treatment layer, an adhesive resin layer and a thermal bonding resin layer laminated in this order, wherein a thickness of the adhesive layer is in a range of 0.3 to 3 ?m, a 10-point average roughness Rzjis (in accordance with JIS B0601) of a surface of the metal foil layer which faces the substrate layer is in a range of 0.3 to 3 ?m, and the thickness of the adhesive layer is not less than the 10-point average roughness Rzjis and not more than 3 ?m, and a peel strength between the substrate layer and the metal foil layer (in accordance with JIS K6854-3) is in a range of 5 to 12 N/15 mm.

Abstract: In the present invention is provided a positive electrode active material for a secondary battery, wherein the positive electrode active material includes a core including a lithium composite metal oxide, and a surface treatment layer positioned on the surface of the core, and the surface treatment layer includes a porous coordination polymer in which a central metal ion is coordinate-bonded with an organic ligand such that high electrode density may be exhibited when an electrode is manufactured, and consequently, battery properties may be significantly enhanced. Also provided are a positive electrode, which is for a secondary battery and includes the positive electrode active material, and a secondary battery.

Abstract: Composites of lithium-ion-conducting ceramic and polymeric materials make superior separators and electrolytes for use in lithium batteries. The ceramic material provides a high conductivity pathway for lithium-ions, enhancing the properties of the less conductive polymeric material. The polymeric material provides flexibility, binding, and space-filling properties, mitigating the tendency of rigid ceramic materials to break or delaminate. The interface between the polymer and ceramic can be made to have a low ionic resistance through the use of additives and coatings.

Abstract: An objective is to provide an anode composite structure for use in a lithium-air battery to make the lithium-air battery less likely to degrade in charge-discharge performance. Provided is an anode composite structure for a lithium-air battery, including: an anode current collector; an anode layer stacked on the anode current collector, the anode layer being metallic lithium, an alloy containing lithium as a main component, or a chemical compound containing lithium as a main component; and a separator stacked on the anode layer. The anode layer is sealed in by the separator and the anode current collector.

Abstract: A fuel cell stack includes an endplate assembly having a structural endplate. An insulator plate has a second exterior surface contacting a first interior surface of the structural endplate and a second interior surface on an opposite side of the insulator plate. A third plate has a third exterior surface contacting the second interior surface and a third interior surface on an opposite side of the third plate relative to the insulator plate. The third interior surface and third exterior surface are substantially flat. The second interior surface and the third exterior surface contact each other substantially continuously in a longitudinal direction and a lateral direction, and are flat and substantially parallel to each other. The second exterior surface is contoured such that the second exterior surface is not flat and is substantially non-parallel relative to the third interior surface.

Abstract: A battery cell comprising a composite water-responsive safety layer and/or composite water- and pH-responsive safety layer to protect against tissue damage and/or electrolysis, when the battery cell is exposed to aqueous solution or tissue, is provided. The composite water-responsive safety layer and/or composite water- and pH-responsive safety layer is adapted to change from a non-electronically conducting state to an electronically conducting state.