Abstract: Embodiments described herein relate to a battery. In one embodiment, a battery includes a first collector plate and a second collector plate arranged in parallel and spaced apart by an internal distance. The battery includes a first electrode and a second electrode disposed between the first collector and the second collector. The first electrode and the second electrode have a geometry that improves power and capacity of the battery. The battery further includes a separator disposed between the first electrode and the second electrode.

Abstract: Provided is a rectangular secondary cell enabling seal performance of a gasket to be improved with a simple structure without enlarging a shaft of a terminal. A rectangular secondary cell according to the present invention includes a cell can housing a winding group and having an opening portion, a lid provided with a positive electrode terminal electrically connected to the winding group and closing the opening portion, and a gasket having an interposed portion interposed between the lid and a lower surface of the positive electrode terminal. In the gasket, an external shape of the interposed portion is smaller than an external shape of the lower surface of the positive electrode terminal.

Abstract: Novel, rechargeable magnesium/magnesium sulfide batteries are disclosed therein, having energy density competitive with lithium batteries, high cycle life, land lower cost. Production method of stabilized MgS is also described, as well as various cells' constructions.

Abstract: A crosslinked polyolefin separator which has gels with a longer side length of 50 ?m or more in a number ranging from 0 to 3 per 1 m2 of the separator, and shows a standard deviation of absorbance ratio between the center of the separator and the side thereof ranging from 0.01 to 0.5 is provided. A method for manufacturing the crosslinked polyolefin separator is also provided. The method includes (S1) preparing a polyolefin porous membranes, and (S2) applying a coating solution containing an initiator and alkoxy group-containing vinylsilane onto at least one surface of the porous membrane. The coating solution can permeate even to the inside of exposed pores. Thus, it is possible to provide a crosslinked polyolefin separator in which silane crosslinking occurs uniformly even inside of the pores.

Abstract: A connector for connecting cells of a battery unit is disclosed. The connector comprises a carrier having weld openings, a cover covering the weld openings, a contact disposed in the carrier, a film connector disposed along an edge of the carrier, and a film conductor disposed in the carrier and contacting the contact and the film connector.

Abstract: A method for breaking down electrochemical energy storage devices in conjunction with a subsequent reclamation of recyclable materials contained therein as secondary raw materials. The devices are broken down by a thermal treatment in a negative pressure environment in a process chamber to remove electrolyte and reactive substances, before the thermally treated material is subjected to downstream processing, by which the secondary raw materials are separated from one another. After introducing a batch of storage devices, in a first process step, the process chamber is evacuated with simultaneous heating of the devices to a first temperature level such that electrolytes in the devices evaporate and, due to the resulting vapor pressure, the devices are opened, wherein produced process gases containing electrolytes in the vapor phase are withdrawn from the process chamber.

Abstract: This disclosure relates to an SO2-based electrolyte for a rechargeable battery cell containing at least one conducting salt of the Formula (I) wherein M is a metal selected from the group consisting of alkali metals, alkaline earth metals, metals of group 12 of the periodic table of the elements and aluminum; x is an integer from 1 to 3; the substituents R, R2, R3 and R4 are each independently selected from the group consisting of C1-C10 alkyl, C2-C1 alkenyl, C2-C1 alkynyl, C3-C10 cycloalkyl, C6-C14 aryl, and C5-C14 heteroaryl; and Z is aluminum or boron.

Abstract: A method and system of controlling hydrogen purge are provided. The method includes estimating an air supply rate supplied to a fuel cell stack and then executing hydrogen purge based on the estimated air supply rate.

Abstract: A novel electrode is provided. A novel power storage device is provided. A conductor having a sheet-like shape is provided. The conductor has a thickness of greater than or equal to 800 nm and less than or equal to 20 ?m. The area of the conductor is greater than or equal to 25 mm2 and less than or equal to 10 m2. The conductor includes carbon and oxygen. The conductor includes carbon at a concentration of higher than 80 atomic % and oxygen at a concentration of higher than or equal to 2 atomic % and lower than or equal to 20 atomic %.

Abstract: Disclosed is a method for recycling a hydrogen fuel cell of a new energy vehicle, including the following steps of: (1) discharging and disassembling a hydrogen fuel cell in turn to obtain a hydrogen supply system, an air supply system, a cooling system and a galvanic pile; (2) disassembling the galvanic pile into a catalyst and carbon cloth, and ashing to obtain ash; (3) adding an auxiliary agent into the ash, mixing, introducing inert gas, heating, introducing oxidizing gas, and absorbing tail gas by using an ammonium salt solution; and (4) adding a reducing agent into the ammonium salt solution absorbing the tail gas in step (3) to react, filtering, taking and cleaning a filter residue to obtain Pt.

Abstract: A method of preparing an electrochemical electrode which is partially or totally covered with a film that is obtained by spreading an aqueous solution comprising a water-soluble binder over the electrode and subsequently drying same. The production cost of the electrodes thus obtained is reduced and the surface porosity thereof is associated with desirable resistance values.

Abstract: A strip-shaped electrode sheet includes an electrode foil including a strip-shaped foil exposed portion in which the electrode foil is exposed, a strip-shaped active material layer extending in a longitudinal direction, and a strip-shaped insulator layer containing insulating resin and formed on an insulator-layer support portion along a one-side layer edge portion of the active material layer and between the foil exposed portion of the electrode foil and an active-material-layer support portion. The insulator layer is located lower than a top face of the active material layer toward the electrode foil and includes a slant coating portion covering at least a lower portion of a one-side slant portion of the active material layer and a foil coating portion extending from the slant coating portion in a width-direction one side and covering the insulator-layer support portion of the electrode foil.

Abstract: A strip-shaped electrode sheet includes an electrode foil including a strip-shaped foil exposed portion in which the electrode foil is exposed, a strip-shaped active material layer extending in a longitudinal direction, and a strip-shaped insulator layer containing insulating resin and formed on an insulator-layer support portion along a one-side layer edge portion of the active material layer and between the foil exposed portion of the electrode foil and an active-material-layer support portion. The insulator layer is located lower than a top face of the active material layer toward the electrode foil and includes a slant coating portion covering at least a lower portion of a one-side slant portion of the active material layer and a foil coating portion extending from the slant coating portion in a width-direction one side and covering the insulator-layer support portion of the electrode foil.

Abstract: A method and a device for producing bipolar plates for fuel cells. A bipolar plate is formed by joining an anode plate to a cathode plate, wherein the anode plate and the cathode plate are formed by forming a substrate plate. In order to provide a cost-effective and automated method, it is proposed that a plate already provided with a reactive coating or catalyst coating, which is transported, automatically driven, via a transport device from the forming device to the joining device, is used as substrate plate.

Abstract: The present invention provides a nonaqueous electrolyte secondary battery laminated separator which improves a long-term battery characteristic of a nonaqueous electrolyte secondary battery. According to the nonaqueous electrolyte secondary battery laminated separator in accordance with an aspect of the present invention, an absolute value of a difference between (i) a standard deviation of whiteness index in one outermost layer and (ii) a standard deviation of whiteness index of the other outermost layer is greater than 0.01 and is 0.60 or less, and a greater one of the two standard deviation values of whiteness index is 0.06 or more and 0.91 or less.

Abstract: The present disclosure concerns the production of precursor compounds for lithium battery cathodes. Batteries or their scrap are smelted in reducing conditions, thereby forming an alloy suitable for further hydrometallurgical refining, and a slag. The alloy is leached in acidic conditions, producing a Ni- and Co-bearing solution, which is refined. The refining steps are greatly simplified as most elements susceptible to interfere with the refining steps concentrate in the slag. Metals such as Co, Ni and Mn are then precipitated from the solution, forming a suitable starting product for the synthesis of new battery precursor compounds.

Abstract: An embodiment is directed to an electrode composition for use in an energy storage device cell. The electrode comprises composite particles, each comprising carbon that is biomass-derived and active material. The active material exhibits partial vapor pressure below around 10?13 torr at around 400 K, and an areal capacity loading of the electrode composition ranges from around 2 mAh/cm2 to around 16 mAh/cm2.

Abstract: An alkali-ion battery is provided that includes an anhydrous alkaline salt as an active cathode material, where the alkaline salt may be, for example, a lithium sulfate salt, sodium sulfate salt or potassium sulfate salt, as the active cathode material. In some such batteries, the inter-conversion of sulfate to persulfate occurs during charging and discharging of the battery, respectively.

Abstract: Materials and methods for coating an electrochemically active electrode material for use in a lithium-ion battery are provided. In one example, an electrochemically active electrode material comprises: a polymer coating applied directly to an exterior surface of the electrochemically active electrode material; a metal plating catalyst adhered to the continuous polymer; and a continuous metal coating that completely covers the metal catalyst and continuous polymer coating. The electrochemically active electrode material may comprise a powder comprising one or more secondary particles, and the polymer and metal coatings may be applied to exterior surfaces of these secondary particles.

Abstract: The present disclosure provides a method for preparing a multi-layer hexagonal boron nitride film, including: preparing a substrate; preparing a boron-containing solid catalyst, and disposing the boron-containing solid catalyst on the substrate; annealing the boron-containing solid catalyst to melt the boron-containing solid catalyst; feeding a nitrogen-containing gas and a protecting gas to an atmosphere in which the melted boron-containing solid catalyst resides, the nitrogen-containing gas reacts with the boron-containing solid catalyst to form the multi-layer hexagonal boron nitride film on a surface of the substrate. The method for preparing a multi-layer hexagonal boron nitride film can prepare a hexagonal boron nitride film having a lateral size in the order of inches and a thickness from several nanometers to several hundred nanometers on the surface of the substrate, providing a favorable basis for the application of hexagonal boron nitride in the field of two-dimensional material devices.