Abstract: The presently disclosed concepts relate to improved techniques for alkali metal extraction (and in particular lithium), using a solid electrolyte membrane. By using a solid electrolyte embedded in a matrix, alkali metal (such as lithium) can be more effectively separated from feed solutions. Additionally, energy used to initially extract lithium from a feed solution may be stored as electrochemical energy, which in turn, may be discharged when lithium is depleted from the electrode. This discharged energy may therefore be reclaimed and reused to extract additional lithium.

Abstract: Provided is a nonaqueous electrolyte secondary battery, including a positive electrode with a positive electrode active material capable of absorbing and releasing a metal ion; a negative electrode with a negative electrode active material capable of absorbing and releasing a metal ion; and a nonaqueous electrolyte solution; wherein the positive electrode active material includes a lithium transition metal compound, and the positive electrode active material includes at least Ni, Mn and Co, wherein the molar ratio of Mn/(Ni+Mn+Co) is larger than 0 and not larger than 0.32, the molar ratio of Ni/(Ni+Mn+Co) is 0.55 or more, the plate density of the positive electrode is 3.0 g/cm3 or more; and the nonaqueous electrolyte solution includes a monofluorophosphate and/or a difluorophosphate. A total content of the monofluorophosphate and/or difluorophosphate is 0.01% by mass or more in terms of the concentration in the nonaqueous electrolyte solution.

Abstract: The present invention provides a secondary battery including an insulating plate which enables easy gas discharge and is not broken at high temperature. For this purpose, disclosed is a secondary battery comprising: a case including a space therein through an opening; at least one electrode assembly inserted into the space of the case; an insulating plate formed at an upper part of the electrode assembly; and a cap plate which is coupled to the opening of the case and includes a vent, at least one region of which has a thinner thickness than other regions, wherein the insulating plate includes a plurality of gas discharge holes disposed at a region corresponding to the vent.

Abstract: Provided is a positive electrode active material for a nonaqueous electrolyte secondary battery including a LiNi composite oxide having low internal resistance and excellent thermal stability. The positive electrode active material is obtained by performing a water washing process using a water spray on a LiNi composite oxide powder obtained by a firing step until the filtrate has an electric conductivity of 30 to 60 mS/cm, and then dried, where the LiNi composite oxide is represented by the composition formula (1): LibNi1-aM1aO2, where M1 represents at least one kind of element selected from transition metal elements other than Ni, group 2 elements, and group 13 elements, and 0.01?a?0.5, and 0.85?b?1.05.

Abstract: A method for recovering a lithium electrolyte salt from spent batteries comprises first extracting electrolyte from shredded batteries (e.g., spent batteries at the end of their useful lifetime) with an organic carbonate solvent; concentrating the extracted electrolyte in vacuo to form a solid lithium electrolyte salt that is solvated with the organic carbonate; and then extracting solvent from the solvated, solid lithium electrolyte salt with supercritical CO2 to purify the lithium electrolyte salt sufficiently for reuse in lithium batteries. In the first extraction, the organic carbonate solvent is selected based on the solubility of the lithium electrolyte salt in the solvent, as well as the volatility of the solvent to facilitate the concentration process. The supercritical CO2 is preferably held at a pressure in the range of about 1,500 to about 30,000 psi and is passed through a bed or column of the solvated salt.

Abstract: The present invention is concerned with an improved fuel cell stack assembly (10) comprising a metal base plate (20) on which is mounted at least one fuel cell stack (30) and a metal end plate (40), each stack comprising at least one fuel cell stack layer (50) that comprises at least one fuel cell (101, 102) and at least one electrically insulating compression gasket (110), wherein a skirt (130) is attached to the base and end plates enclosing the stack and is under tension therebetween so as to maintain a compressive force through the stack, thereby obviating the need for tie-bars.

Abstract: An all-solid secondary battery includes a cathode layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer. The cathode layer includes a cathode current collector and a cathode active material layer disposed on the cathode current collector, the anode layer includes an anode current collector and a first anode active material layer disposed on the anode current collector, the cathode active material layer includes a porous oxide-based composite solid electrolyte, and the solid electrolyte layer includes a sulfide-based solid electrolyte.

Abstract: Systems and methods are provided for an electrode for a lithium-ion battery cell. In one example, the electrode may include a current collector having two opposing sides, at least one of the two opposing sides being configured with a first coating layer disposed on the current collector at a first loading, where the first coating layer may include a first binder in a first weight ratio, and a second coating layer disposed on the first coating layer at a second loading, where the second coating layer may include a second binder in a second weight ratio, wherein the first weight ratio may be greater than the second weight ratio, and a ratio of the first loading to the second loading may be less than 1:2. In this way, direct current internal resistance of the lithium-ion battery cell may be decreased while maintaining or increasing adhesion within the electrode.

Abstract: Provided is a molding packaging material which is capable of ensuring good slipperiness to secure good formability when molding the molding packaging material and is less likely to cause white powder on a surface of the packaging material. The molding packaging material includes a substrate layer 2 as an outer layer, a heat fusible resin layer 3 as an inner layer, and a metal foil layer 4 arranged between the two layers. The heat fusible resin layer 3 is composed of a single layer or a multi-layer. The innermost layer of the heat fusible resin layer 3 is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.

Abstract: A solid-state ion conductor includes a compound of Formula (I): Li4+xB7O12+0.5xX1aX21?a ??Formula (I) wherein, in Formula (I), 0?x?1; X1 is a pseudohalogen; X2 is a halogen; and 0<a?1.

Abstract: A method of manufacturing a secondary battery including a joining step of clamping a negative electrode core body stacked part and a negative electrode current collector by a horn and an anvil, and in a state where the anvil is in contact with the negative electrode current collector, ultrasonically joining the negative electrode core body stacked part and the negative electrode current collector to form a joint part; and an oxidation treatment step of oxidizing a portion, in contact with the anvil, of the negative electrode current collector in the joining step.

Abstract: The present application discloses a positive electrode active material including a lithium nickel cobalt manganese oxide, the molar content of nickel in the lithium nickel cobalt manganese oxide accounts for 60%-90% of the total molar content of nickel, cobalt and manganese, and the lithium nickel cobalt manganese oxide has a layered crystal structure of a space group R 3m; a transition metal layer of the lithium nickel cobalt manganese oxide includes a doping element, and the local mass concentration of the doping element in particles of the positive electrode active material has a relative deviation of 20% or less; and in a differential scanning calorimetry spectrum of the positive electrode active material in a 78% delithiation state, an initial exothermic temperature of a main exothermic peak is 200° C. or more, and an integral area of the main exothermic peak is 100 J/g or less.

Abstract: The compound is represented by general formula (i). In the compound, in a group Ki1, at least two secondary carbon atoms in an alkyl group (a linear alkyl, halogenated alkyl, or cyanogenated alkyl group having 3 to 40 carbon atoms) are replaced with —C(?Xi1)— and/or —CH(—CN)—, where Xi1 is an oxygen atom, a sulfur atom, NH, or NR13; in addition, a group Ai2, a group Ai3, or the group Ki1 includes, as a substituent, at least one Pi1-Spi1- group, where Pi1 is a polymerizable group, and SPi1 is a spacer group or a single bond. The liquid crystal composition including the compound represented by general formula (i) can be adsorbed onto substrates between which a liquid crystal layer is held, and, consequently, without the use of an alignment film, liquid crystal molecules can be maintained in a state in which the liquid crystal molecules are aligned in a vertical direction.

Abstract: Disclosed is a device for automatically dismantling a power battery module, including a cutting platform, a clamping mechanism, a first cutting mechanism, a second cutting mechanism, a turnover mechanism, and a stripping mechanism. The clamping mechanism is disposed on the cutting platform. The first cutting mechanism includes a first cutting blade, a cutting blade set, and a first drive assembly. The second cutting mechanism includes a third cutting blade, a fourth cutting blade, and a third drive assembly. The first cutting blade, the cutting blade set, the third cutting blade, and the fourth cutting blade are vertically movable. The cutting blade set includes a plurality of second cutting blades that are movable relative to each other.

Abstract: Provided are assemblies, comprising: a first leaf spring; a second leaf spring; and at least one component; the first leaf spring and the second leaf spring being superposed over a first end of the at least one component so as to exert first and second forces, respectively, through first and second regions of the component. These assemblies are useful to apply different forces to a stacked assembly where a cross section of a component of the assembly comprises materials of different Young's moduli within that cross section, thereby compressing different regions of the component with different forces.

Abstract: The present invention provides a slurry composition comprising (a) a binder comprising a polymer comprising a fluoropolymer dispersed in a liquid medium; and (b) at least one conductive carbon material having a BET surface area of greater than 100 m2/g. Also provided are electrodes and electrical storage devices.

Abstract: A redox flow battery system includes a cell that performs charging and discharging between the cell and a power system, a tank that stores an electrolyte supplied to the cell, a circulation pump that circulates the electrolyte between the cell and the tank, a power converter disposed between the cell and the power system, and a charge/discharge control unit that controls an operation of the power converter to control charging and discharging of the cell. When the charge/discharge control unit detects power failure in the power system, the charge/discharge control unit controls the power converter such that power of the electrolyte remaining in the cell is supplied to the circulation pump.

Abstract: A resist composition that generates an acid upon exposure and whose solubility in a developing solution is changed by action of an acid.

Abstract: According to one embodiment, there is provided a secondary battery including a negative electrode, a positive electrode, a first electrolyte, a second electrolyte, and a hydrogel electrolyte. The first electrolyte is in contact with at least a part of the negative electrode. The second electrolyte is in contact with at least a part of the positive electrode. The hydrogel electrolyte includes a gel having a chemically crosslinked structure. A first electrolyte composition of the first electrolyte is different from a second electrolyte composition of the second electrolyte. At least one of the first electrolyte and the second electrolyte includes an aqueous solvent, the aqueous solvent including water. At least a part of at least one of the negative electrode and the positive electrode overlaps at least a part of the hydrogel electrolyte.

Abstract: A battery module includes a cell assembly having a plurality of pouch-type battery cells whose wide surfaces stand to be stacked in one direction. The battery module includes a pair of buffer pads disposed at both side surfaces of the cell assembly, a top plate and a bottom plate configured to cover a top portion and a bottom portion of the cell assembly, respectively, and a pair of side plates coupled to both ends of the top plate and the bottom plate by clinching or fitting so that the pair of buffer pads and the cell assembly are interposed there between.