Abstract: Disclosed herein is a prismatic battery cell wherein a cap plate is mounted at an open top of a prismatic cell case in a state in which an electrode assembly configured to have a structure in which a separator is disposed between a cathode and an anode is mounted in the prismatic cell case, the cap plate is provided with an anode terminal or a cathode terminal as a protruding terminal, and the prismatic cell case is configured to have a structure in which two or more case members divided in a major axis direction, in a minor axis direction, or in the major axis direction and the minor axis direction based on a horizontal sectional shape of the cap plate with respect to the protruding terminal are coupled to each other.

Abstract: A cathode material for a lithium-ion secondary battery made of agglomerated particles formed by agglomeration of a plurality of primary particles of a cathode active material represented by General Formula (1) below which are coated with a carbonaceous film, in which, in a case in which a cathode mixture layer including the cathode material, a conductive auxiliary agent, and a binding agent in a weight ratio (the cathode material/the conductive auxiliary agent/the binding agent) of 90:5:5 is calendered on a 30 ?m-thick aluminum current collector at a total applied pressure of 5 t/250 mm, a film thickness change percentage of the cathode mixture layer before and after the calendering is 30% or less, LixAyDzPO4??(1).

Abstract: An ionic liquid having high electrochemical stability and a low melting point. An ionic liquid represented by the following general formula (G0) is provided. In the general formula (G0), R0 to R5 are individually any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, a methoxyethyl group, and a hydrogen atom, and A? is a univalent imide-based anion, a univalent methide-based anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate, or hexafluorophosphate.

Abstract: A flexible secondary battery includes an exterior member having an accommodation space inside, a cathode collector and an anode collector located in the accommodation space and spaced apart from each other, a cathode active material portion on the cathode collector, and an anode active material portion on the anode collector. The cathode collector includes a first connection portion extending in a first direction and a plurality of first leg portions protruding from the first connection portion in a second direction different from the first direction. The anode collector includes a second connection portion parallel to the first connection portion and a plurality of second leg portions protruding from the second connection portion toward the first connection portion. The first leg portions and the second leg portions are alternately arranged between the first connection portion and the second connection portion. The cathode active material portion is located only on the first leg portions.

Abstract: There is provided a method for sealing a filling orifice formed on a wall of a container in a leak-proof manner using a stopper arrangement comprising a tubular member with a flange having an upper face, and a lower face for covering the orifice, and a mandrel with a stem which is housed inside the tubular member, the force necessary for rupturing the stem being greater than the force resulting from the entry and advancement of a head of the mandrel inside the tubular member, comprising introducing the stopper arrangement into the orifice, bringing the nosepiece of the riveting tool into abutment with the upper face of the flange, actuating the riveting tool so as to exert a tensile force on the stem and bring about expansion of the tubular member against the wall of the orifice and rupturing the stem of the stopper arrangement.

Abstract: An object of the present invention is to provide a production method for suppressing the deformation of a negative electrode in the production of a negative electrode for an all-solid-state battery using turbostratic carbon and a solid electrolyte. The problem described above can be solved by a production method for a negative electrode for an all-solid-state battery comprising the steps of: (1) coating a carbonaceous material having a true density of from 1.30 g/cm3 to 2.10 g/cm3 determined by a butanol method with a solid electrolyte; and (2) pressure-molding the solid electrolyte-coated carbonaceous material.

Abstract: A vehicle propulsion system comprising a plurality of solid state rechargeable battery cells configured to power a drivetrain. In accordance with once aspect of the invention, a transportation system that is powered at least in part by electricity stored in the form of rechargeable electrochemical cells. According to an embodiment of the present invention, these cells are combined in series and in parallel to form a pack that is regulated by charge and discharge control circuits that are programmed with algorithms to monitor state of charge, battery lifetime, and battery health.

Abstract: A method of producing an electrolyte membrane includes providing a dispersion solution that has a crosslinked perfluorinated ionomer material and a linear perfluorinated ionomer material dispersed in a carrier fluid or mixture carrier fluids. The crosslinked perfluorinated ionomer material has an equivalent weight of 750 g/mol or less with respect to proton exchange acid groups. The linear perfluorinated ionomer material has an equivalent weight of 750 g/mol or more with respect to proton exchange as acid groups. At least a portion of the carrier fluid or fluids is removed from the dispersion solution to thereby form an electrolyte membrane with the crosslinked perfluorinated ionomer material and the linear perfluorinated ionomer material.

Abstract: A proton exchange material includes a linear perfluorinated carbon backbone chain and a side chain extending off of the linear perfluorinated carbon backbone chain. The side chain includes at least one sulfonimide group, —SO2-NH—SO2-, and a carbon chain link between the at least one sulfonimide group and the linear perfluorinated carbon backbone chain. The carbon chain link has less than three carbon atoms.

Abstract: The invention relates essentially to an electrical insulation and sealing surround for distributing gases in a high temperature steam electrolyzer of SOEC type or in a fuel cell of SOFC type. According to the invention, some of the functions of sealing, distributing gases and providing electrical insulation between interconnectors are grouped together within one and same component in the form of a surround made of electrically insulating material, the recessed zones of which serve to support the actual sealing gaskets, making them easier to use and to maintain.

Abstract: A battery system comprises an assembled battery in which a plurality of battery cells are connected in series, a temperature sensor for detecting temperature of the battery cells of the assembled battery, and a voltage detecting line connected to a voltage detecting location of the battery cell. Further the battery system fixes the connecting terminal at the voltage detecting location. The connecting terminal fixes the temperature sensor in a thermally coupling state, and electrically connects the voltage detecting line.

Abstract: An energy storage device includes a printed current collector layer, where the printed current collector layer includes nickel flakes and a current collector conductive carbon additive. The energy storage device includes a printed electrode layer printed over the current collector layer, where the printed electrode layer includes an ionic liquid and an electrode conductive carbon additive. The ionic liquid can include 1-ethyl-3-methylimidazolium tetrafluoroborate (C2mimBF4). The current collector conductive carbon can include graphene and the electrode conductive carbon additive can include graphite, graphene, and/or carbon nanotubes.

Abstract: A method for manufacturing silicon flakes includes steps as follows. A silicon material is contacted with a machining tool which includes at least one abrasive particle fixedly disposed thereon. The silicon material is scraped along a displacement path with respect to the machining tool to generate the silicon flakes having various particle sizes.

Abstract: A rechargeable battery includes an electrode assembly; a case housing the electrode assembly; a cap plate sealing an opening of the case; an electrode terminal that is electrically connected to the electrode assembly and extends through a terminal hole of the cap plate and is oriented outside of the cap plate; and an insulating member that electrically insulates the cap plate and the electrode terminal while supporting the electrode terminal at an outer surface of the cap plate.

Abstract: The nonaqueous electrolyte secondary battery of the present invention includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode contains a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystal structure. The negative electrode contains a negative electrode active material composed of a Ti-based oxide and an additive composed of fluorinated carbon that reacts with lithium at a more noble potential as compared to the negative electrode active material. In the nonaqueous electrolyte secondary battery of the present invention, the battery voltage reaches a discharge cut-off voltage by a potential change in the negative electrode.

Abstract: An apparatus for accommodating at least one component of a SOFC fuel cell system includes a thermally insulating inner box and an outer box that surrounds the inner box. The inner box includes a base, a cover, and side panels. The outer box bears against the base, the cover, and the side panels of the inner box and presses them together, and wherein the at least one component can be arranged in the interior of the inner box. The base, the cover, and the side panels are at least partly over-dimensioned so that the inner box can be assembled with a press-fit.

Abstract: A single fuel cell, a plurality of which are to be stacked to form a fuel cell stack, includes a membrane electrode assembly having a structure including paired electrode layers and an electrolyte membrane held between the paired electrode layers, paired separators each forming a gas passage between the separator and the membrane electrode assembly, and a displacement absorber having a conductive property and interposed between one separator of the single fuel cell and an adjacent-side separator of another single fuel cell to be stacked adjacent to the single fuel cell. The displacement absorber is connected to at least any one of the separators.

Abstract: A binary alloy catalyst comprising platinum and tantalum, wherein the tantalum is present in the alloy at 15 to 50 atomic % and a phosphoric acid fuel cell comprising such a catalyst is disclosed. The catalyst provides a better CO tolerance.

Abstract: A battery cell assembly having first, second, and third battery cells and a unitary wrapping sheet is provided. The unitary wrapping sheet is disposed on a top surface and a bottom surface of the first battery cell. The unitary wrapping sheet is further disposed on a top surface and a bottom surface of the second battery cell. The unitary wrapping sheet is further disposed on a top surface and a bottom surface of the third battery cell. The unitary wrapping sheet is further disposed on and encloses a portion of a combined periphery of the first, second, and third battery cells such that the top surface of the first battery cell, the top surface of the second battery cell, and the top surface of the third battery cell are held substantially parallel to one another.

Abstract: A catalyst composition comprising at least one precious metal, wherein the catalyst composition is capable of catalyzing, in the presence of a halogen ion or a mixture of halogen ions, a charging reaction and a discharging reaction in a regenerative fuel cell. This disclosure relates to electrodes comprising those catalysts that are useful in fuel cells. The catalysts are active towards hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR) and porous electrodes are made in a process designed to control their porosity. The catalysts and electrodes are employed in regenerative fuel cells comprising hydrogen and halogen acid or mixture of halogen acids. The catalysts are particularly useful in hydrogen/bromine reduction/oxidation reactions. The catalysts exhibit highly acceptable life and performance.