Abstract: A polycrystalline cubic boron nitride comprising 96% by volume or more of cubic boron nitride, wherein the cubic boron nitride has a dislocation density of 8×1015/m2 or less, the polycrystalline cubic boron nitride comprises a plurality of crystal grains, and the plurality of crystal grains have a median diameter d50 of an equivalent circle diameter of less than 100 nm.

Abstract: A battery pack including a protective circuit module including a circuit board extending in a first direction, an electrode tab coupling part on the circuit board, and a protection layer between the electrode tab coupling part and the circuit board; and a battery cell including an electrode tab protruding at one end and having a polarity, the electrode tab being coupled to a top surface of the electrode tab coupling part, wherein the electrode tab of the battery cell, the electrode tab coupling part, and the protection layer of the protective circuit module are stacked and coupled in a second direction perpendicular to the first direction.

Abstract: A process and apparatus for the production of hydrogen There is provided a process for the production of hydrogen, the process comprising: electrolysing water in an electrolytic cell to produce hydrogen gas and oxygen gas, the electrolytic cell having a first outlet for hydrogen gas; passing the hydrogen gas from the first outlet of the electrolytic cell to a reaction chamber, the reaction chamber comprising a first inlet for receiving the hydrogen gas from the electrolytic cell and a second outlet for hydrogen gas passing out of the reaction chamber, the reaction chamber containing one or more pieces of a metal or an alloy thereof at least partially submerged in an alkali solution, wherein the first inlet is arranged so that the hydrogen gas bubbles through the alkali solution; passing the hydrogen gas from the second outlet to a gas-cleaning chamber, the gas-cleaning chamber comprising a second inlet for receiving hydrogen gas from the reaction chamber and a third outlet for hydrogen gas passing out of the

Abstract: A manufacturing method of fuel cell and a fuel cell are provided. The manufacturing method of fuel cell includes a first slit formation process in which first slits are formed in a first electrode, an electrolyte membrane lamination process in which an electrolyte membrane is laminated on the first electrode, an IC formation process in which interconnector portions are formed on the electrolyte membrane, a second slit formation process in which second slits are formed in a second electrode, a second electrode lamination process in which the second electrode is laminated on the electrolyte membrane, and a side edge portion removal process in which side edge portions of the first electrode and the second electrode are removed to divide the first electrode into a plurality of parts via the first slits and to divide the second electrode into a plurality of parts via the second slits.

Abstract: Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector.

Abstract: A rechargeable lithium-ion cell has a cell capacity and includes a positive electrode having a recharged potential and a negative electrode. The rechargeable lithium-ion cell also includes a charge-carrying electrolyte. The charge-carrying electrolyte includes a charge-carrying medium and a lithium salt. The rechargeable lithium-ion cell also includes a redox shuttle having the following structure Formula (I).

Abstract: The invention relates to a system able to operate reversibly as an SOFC fuel-cell stack or as an SOEC electrolyser. According to the invention, a bypass line or circuit is provided in order to divert if needs be some of the hot gases issued from the chambers referred to as oxygen chambers (anodic chambers in SOEC mode, cathodic chambers in SOFC-stack mode) as this will cool the heat exchanger provided in the circuit through which the oxygen flows.

Abstract: Process for making a particulate material of general formula (I), Li1+x(NiaCobMncMd)1?xO2??(I) wherein the integers are defined as follows: M is selected from Al and Ti, x is in the range of from 0.015 to 0.03, a is in the range of from 0.3 to 0.6, b is in the range of from 0.05 to 0.35, c is in the range of from 0.2 to 0.5, d is in the range of from 0.001 to 0.

Abstract: Provided is a positive electrode active material with which a nonaqueous electrolyte secondary battery can be obtained that achieves both high energy density and output characteristics and thermal stability at the time of short-circuit owing to low conductivity. A positive electrode active material for a nonaqueous electrolyte secondary battery contains a lithium-nickel-manganese composite oxide containing a secondary particle formed of a plurality of flocculated primary particles. The lithium-nickel-manganese composite oxide is represented by General Formula (1): LidNi1-a-b-cMnaMbNbcO2+?, at least part of niobium is solid-solved in the primary particles, and a maximum niobium concentration within the primary particles is at least one time and up to three times an average niobium concentration within the primary particles.

Abstract: To provide a cathode active material with which it is possible to obtain a lithium ion secondary battery having a high discharge capacity and being excellent in the cycle characteristic, and its production process. A cathode active material, comprising particles of a lithium-containing composite oxide, the lithium-containing composite oxide being represented by Li?NiaCobMncTidMeO2+? wherein ? is from 1 to 1.8, a is from 0.15 to 0.5, b is from 0 to 0.09, c is from 0.33 to 0.8, d is from 0.01 to 0.1, e is from 0 to 0.1, ? is from 0 to 0.8, a+b+c+d+e=1, and M is Mg, Al, Ca or the like, wherein in an X-ray diffraction pattern, the ratio (H020/H003) of the height of a peak of (020) plane assigned to a crystal structure with space group C2/m to the height of a peak of (003) plane assigned to a crystal structure with space group R-3m is at least 0.02, and D90/D10 is at most 4.

Abstract: Disclosed are a coating slurry for preparing a separator for an electrochemical device, comprising at least one polymer having an intrinsic viscosity ranging from 0.5 to 3.0 mL/g, at least one inorganic filler, and at least one solvent; a method for preparing the coating slurry; and a method for preparing a separator for an electrochemical device using the coating slurry; as well as a separator and an electrochemical device comprising the separator.

Abstract: An intermediate temperature solid oxide fuel cell (IT-SOFC) includes an anode layer, an electrolyte adjacent to the anode layer, and a cathode layer adjacent to the electrolyte and including a material of formula (I) or (II): Sr2OsO4 (I) or Ba2MO4 (II), where M is a transition metal or post-transition metal.

Abstract: Techniques to diagnose internal short circuits (ISCs) of a lithium-ion battery (LIB) are disclosed. The short circuit resistance data can help to detect the ISCs of a LIB as fast as possible. For the proposed detection techniques, a resistor-based circuit and an inductor-based circuit are disclosed for single-cell LIBs as well as for LIBs having multiple cells. Two topologies of the resistor-based circuits are disclosed to detect the ISCs of multi-cell LIBs.

Abstract: A battery tray and a vehicle include a frame structure including a plurality of frames sequentially connected end to end arranged to be connected to the vehicle, and a base plate structure including an inner base plate and a reinforcing beam, wherein the inner base plate is located on an inner side of the reinforcing beam and arranged for mounting a battery module. The battery tray further includes a reinforcing block, wherein the reinforcing block is connected to a corresponding frame and the reinforcing beam in a matching mode, so as to fixedly connect the reinforcing beam to the frame structure through the reinforcing block. In the battery tray, the strength of the battery tray can be enhanced and a total weight can be decreased only by using the reinforcing block to fixedly connect the reinforcing beam to the frame structure.

Abstract: A solid-state battery cell having a capacitor interlayer is disclosed. The solid-state battery includes an anode, a cathode spaced from the anode, a solid-state electrolyte layer disposed between the anode and the cathode, and a capacitor assisted interlayer sandwiched between at least one of (i) the anode and solid-state electrolyte layer, and (ii) the cathode and the solid-state electrolyte layer. The capacitor assisted interlayer comprise at least one of a polymer-based material, an inorganic material, and a polymer-inorganic hybrid material; and a capacitor anode active material or a capacitor cathode active material. The polymer-based material includes at least one of a poly(ethylene glycol) methylether acrylate with Al2O3 and LiTFSI, a polyethylene oxide (PEO) with LiTFSI, and a poly(vinylidene fluoride) copolymer with hexafluoropropylene (PVDF-HFP)-based gel electrolyte. The inorganic material includes a 70% Li2S-29% P2S5-1% P2O5.

Abstract: A carbon catalyst, a battery electrode, and a battery each having excellent catalytic activity and excellent durability. The carbon catalyst includes iron, exhibits a weight reduction ratio in the temperature range from 200° C. to 1,200° C. of 12.0 wt % or less measured by thermogravimetric analysis in a nitrogen atmosphere, and has a carbon structure that exhibits, in X-ray absorption fine structure analysis of a K absorption edge of the iron, the following (a) and/or (b): (a) a ratio of a normalized absorbance at 7,130 eV to a normalized absorbance at 7,110 eV is 7.0 or more; and (b) a ratio of a normalized absorbance at 7,135 eV to a normalized absorbance at 7,110 eV is 7.0 or more.

Abstract: An electrocatalyst material comprising: (i) a support material comprising a plurality of individual support particles or aggregates; (ii) first particles comprising a first metal and an alloying metal; and (iii) second particles consisting of a second metal or a second metal oxide, wherein the second metal is platinum or iridium; wherein each individual support particle or aggregate has dispersed thereon first particles and second particles, characterised in that the mean average particle size of the second particles is smaller than the mean average particle size of the first particles is disclosed. The electrocatalyst material has particular use in an electrode, such as the cathode, of an electrochemical cell, such as a fuel cell.

Abstract: A battery cell frame according to an embodiment of the present disclosure includes a bus bar for electrically coupling to an electrode lead of a battery cell, a support member coupled to the bus bar and configured to come into contact with the battery cell to support the battery cell, and a variable length part formed in the support member. The variable length part is configured to change in length to fit a size of the battery cell.

Abstract: A battery module is used to accommodate a battery and includes an external card bracket, a battery case, a battery cover, and at least one elastic member. The external card bracket includes at least one first locking portion. The battery case includes at least one second locking portion and at least one first assembly portion. The first locking portion is detachably locked with the second locking portion so that the battery case is assembled onto the external card bracket. The battery cover includes at least one second assembly portion. The second assembly portion is detachably assembled to the first assembly portion such that the battery case and the battery cover define a storage space. The battery is disposed in the storage space. The elastic member is located on the second assembly portion and connects the battery case and the battery cover to limit displacement of the battery cover.

Abstract: A method for manufacturing an all-solid battery is provided to press a laminate of a cell becoming a battery unit at a high pressure, and resin-sealing the peripheral thereof. The method includes disposing a laminate, which includes a plurality of cells composed of an anode, a solid electrolyte, and a cathode, and a current collecting plate having the plurality of cells stacked thereon in series and disposed on both end portions thereof in the stacking direction, into a mold in an opened state. The mold is then closed and the laminate is pressed. A battery unit is formed by press-fitting resin from a resin injection port to solidify the resin in the pressed state of the laminate.