Abstract: An electrochemical device including a housing and a stack of electrochemical cells in the housing. Each electrochemical cell includes an anode electrode, a cathode electrode, a separator located between the anode electrode and the cathode electrode and an electrolyte. The electrochemical device also includes a current collector located between adjacent electrochemical cells, an anode bus operatively connected to the anodes of the electrochemical cells in the stack and a cathode bus operatively connected to the cathodes of the electrochemical cells in the stack. The housing, the anode electrode, the cathode electrode, the separator, the anode bus and the cathode bus are non-metallic.

Abstract: A system and method regulate the temperature of an electrochemical battery. The system can be incorporated in a hybrid or electric motor vehicle including at least two electrical-energy-accumulating elements, each element including at least one electrochemical cell. The system increases the intensity of the value of the current flowing through the battery up to a first threshold value and includes a module for disconnecting and connecting an electrical-energy-accumulating element.

Abstract: An objection is to provide a technology by which a decline in the starting performance of a fuel cell system may be controlled in a low-temperature environment. A control method of a fuel cell system includes a temperature acquisition step of acquiring a temperature of the fuel cell at start-up of the fuel cell; and an exhaust gas control step of restricting, when the temperature of the fuel cell is below a predetermined value, a flow rate of an exhaust gas flowing into a flow path configuring portion that configures at least a part of a flow path of the exhaust gas of the fuel cell as compared to the flow rate of the exhaust gas flowing into the flow path configuring portion when the temperature of the fuel cell is equal to or less than the predetermined value.

Abstract: A method of operating a redox flow battery includes providing a redox flow battery including an anolyte storage tank configured for containing a quantity of anolyte and an anolyte headspace, a catholyte storage tank configured for containing a quantity of a catholyte and a catholyte headspace, and a gas management system comprising at least one open conduit interconnecting the anolyte headspace and the catholyte headspace for free gas exchange between the anolyte and catholyte headspaces, and a passive gas exchange device in gaseous fluid communication with the anolyte headspace, the passive gas exchange device configured to release gas from the anolyte headspace to an exterior battery environment when an interior battery pressure exceeds an exterior battery pressure by a predetermined amount, and operating the battery.

Abstract: A fuel cell module includes a first fuel cell layer and second fuel cell layer. Each fuel cell layer includes a plurality of membrane electrode assemblies arranged in a planar shape. Each membrane electrode assembly includes an electrolyte membrane, an anode disposed on one surface of the electrolyte membrane, and a cathode disposed on the other surface of the electrolyte membrane. Each fuel cell layer also includes interconnectors each of which electrically connects the anode of one of adjacent membrane electrode assemblies to the cathode of the other. The first fuel cell layer and second fuel cell layer are arranged so that one polarity of each membrane electrode assembly of the first fuel cell layer is opposed to the same polarity of each membrane electrode assembly of the second fuel cell layer.

Abstract: Disclosed herein is a battery module having a plurality of plate-shaped battery cells, each of which has electrode terminals respectively formed at the upper end and the lower end thereof, the battery module including two or more battery cells, a buffering member disposed at the interface between the battery cells to restrain movement of the battery cells and to buffer volume change of the battery cells during charge and discharge of the battery cells, and a pair of module housings coupled to entirely cover the outside of a stack of the battery cells excluding the electrode terminals of the battery cells, each of the module housings being formed of a sheet.

Abstract: The present invention is a negative electrode active material for a negative electrode active material layer of a lithium ion secondary battery, wherein: the negative electrode active material comprises silicon-based material consisting of SiOx (0.5?x?1.6); and the negative electrode active material has two or more peaks in a region of a bond energy ranging from 520 eV to 537 eV in an O 1s peak shape given in an X-ray photoelectron spectroscopy. As a result, it is possible to provide a negative electrode active material in which a battery capacity can be increased and cycle characteristics and initial charge/discharge characteristics can be improved when used as a negative electrode active material for a lithium ion secondary battery.

Abstract: The present invention relates to compounds of formula (I) wherein X is N or P; —SO3— is —O—S(O)2— or —S(O)2—O—; and n and R1 to R5 are defined below, and to their use as additives for electrolyte compositions, in particular in electrolyte compositions for lithium batteries.

Abstract: Some lithium-ion batteries are assembled using a plurality of electrically interconnected battery pouches to obtain the electrical potential and power requirements of the battery application. In this disclosure, such battery pouches are prepared to contain a stacked grouping of inter-layered and interconnected anodes, cathodes, and separators, each wetted with a liquid electrolyte. A pair of reference electrodes is combined in a specific arrangement with other cell members to enable accurate assessment of both anode group and cathode group performance, and to validate and regenerate reference electrode capability.

Abstract: Provided is a design method of a secondary battery, including: calculating temperature profile per position of a battery in a stacked direction of a stack-type secondary battery in which cathodes and anodes are alternately stacked with separators interposed therebetween at the time of charging and discharging the stack-type secondary battery; and selecting cathode active materials used for cathodes per corresponding positions by the temperature profile per position.

Abstract: A battery pack thermal management assembly is provided for use with an electric vehicle in which the battery pack is sealed and mounted under the car. The batteries contained within the battery pack are thermally coupled via a layer of thermally conductive material to the interior surface of the pack's upper enclosure panel. A shaped conduit panel is attached to the exterior surface of the pack's upper enclosure panel. A cooling panel structure containing a coolant channel is defined by the enclosure panel's exterior surface and the conduit panel's interior surface.

Abstract: A lithium-air electrochemical cell is provided. The battery comprises: an anode compartment; a cathode compartment; and a lithium ion conductive membrane separating the anode compartment from the cathode compartment. The anode compartment comprises an anode having lithium, a lithium alloy or a porous material capable of adsorption and release of lithium and a lithium ion electrolyte, while the cathode compartment comprises an air electrode, an ionic liquid capable of supporting the reduction of oxygen and a dissolved concentration of potassium superoxide. A lithium ion concentration in the cathode compartment is low in comparison to the concentration of potassium ion.

Abstract: The present invention relates to a liquid crystal panel, a liquid crystal display device and to a liquid crystal medium having a negative dielectric anisotropy ??.

Abstract: A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound.

Abstract: The invention relates to a method for producing an anion-exchange polymer material having an IPN or semi-IPN structure, said method consisting in: (A) preparing a homogeneous reaction solution containing, in a suitable organic solvent, (a) at least one organic polymer bearing reactive halogen groups, (b) at least one tertiary diamine, (c) at least one monomer comprising an ethylenic unsaturation polymerizable by free radical polymerization, (d) optionally at least one cross-linking agent including at least two ethylenic unsaturations polymerizable by free radical polymerization, and e) at least one free radical polymerization initiator; and (B) heating the prepared solution to a temperature and for a duration that are sufficient to allow both a nucleophilic substitution reaction between components (a) and (b) and a free radical copolymerization reaction of components (c) and optionally (d) initiated by component (e).

Abstract: Described herein are multi-functional composite materials containing energy storage assemblies that can be significantly resistant to tension/compression stress. The energy storage assemblies can contain at least one energy storage layer that contains an insulating layer having a plurality of openings arranged in a spaced apart manner, and a plurality of energy storage devices, each energy storage device being contained within one of the openings. The energy storage devices can be electrically connected to one another. The energy storage layer can contain a support material upon which electrical connections are formed. One or more energy storage layers can be disposed between two or more stress carrying layers to form an energy storage assembly that can have significant resistance to tension/compression stress. Energy storage devices suitable for use in the energy storage assemblies can include, for example, batteries, capacitors and/or supercapacitors.

Abstract: A rechargeable battery includes a conductive case including a bottom part and a wall part extending from a periphery of the bottom part, an electrode assembly including a positive electrode and a negative electrode, and accommodated in the case, a cap plate opposite to the bottom part and electrically connected to the case, a positive terminal fixed to the cap plate and electrically connected to the cap plate, a negative terminal fixed to the cap plate and electrically insulated from the cap plate, a positive electrode tab extending from the positive electrode and electrically connected to the bottom part, and a negative electrode tab extending from the negative electrode, facing the positive electrode tab, and electrically connected to the negative terminal, wherein a length of the cap plate in a first direction is less than a height of the wall part in a second direction.

Abstract: A cathode for a seawater battery and a method for making the cathode are disclosed. The cathode is made using a mixture of copper sulfate monohydrate and anhydrous copper sulfate at a mass percentage of 70-92%, conductive carbon powder at a mass percentage of 1-10%, conductive carbon fiber at a mass percentage of 1-10%, polyethylene PE powder at a mass percentage of 3-15%, and polyethylene wax at a mass percentage of 3-12%; and using metal titanium sheet or nickel sheet as a current collecting electrode. The cathode prevents the battery from the problems of slow activation when meeting water and of inferior output in fresh water.

Abstract: Disclosed is an electrode for secondary batteries in which an electrode mix layer including an electrode active material is coated on an electrode collector, and a coating layer including aluminum (Al) and/or alumina (Al2O3) is formed on the electrode mix layer.

Abstract: A lithium-ion secondary battery with high capacity is provided. Alternatively, a lithium-ion secondary battery with improved cycle characteristics is provided. To achieve this, an active material including a particle having a cleavage plane and a layer containing carbon covering at least part of the cleavage plane is provided. The particle having the cleavage plane contains lithium, manganese, nickel, and oxygen. The layer containing carbon preferably contains graphene. When a lithium-ion secondary battery is fabricated using an electrode including the particle having the cleavage plane at least part of which is covered with the layer containing carbon as an active material, the discharge capacity can be increased and the cycle characteristics can be improved.