Abstract: Electrolytes and electrolyte additives for energy storage devices comprising phosphorus based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a phosphorus based compound.

Abstract: Methods and systems for removing impurities from electrolyte solutions having three or more valence states. In some embodiments, a method includes electrochemically reducing an electrolyte solution to lower its valence state to a level that causes impurities to precipitate out of the electrolyte solution and then filtering the precipitate(s) out of the electrolyte solution. In embodiments in which the electrolyte solution is desired to be at a valence state higher than the precipitation valence state, a method of the disclosure includes oxidizing the purified electrolyte solution to the target valence.

Abstract: Electrode or electrolyte additives for energy storage devices comprising symmetrical or asymmetrical alkylsulfonyl imide or cyclic alkylene sulfonylimide salts are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, and an electrolyte composition. Symmetrical or asymmetrical alkylsulfonyl imide or cyclic alkylene sulfonylimide salts may serve as additives to the electrodes or to the electrolyte composition, or both.

Abstract: A solid electrolyte material that includes a composite oxide containing Li and Bi, and at least one solid electrolyte having a garnet structure, a perovskite structure, and a LISICON structure.

Abstract: An electrode catalyst for an Oxygen Reduction Reaction (ORR) is provided that includes a transition metal nitride layer on a substrate, an ORR surface oxide layer deposited on the transition metal nitride layer, where the ORR surface oxide layer includes from sub-monolayer to 20 surface oxide monolayers.

Abstract: A solid-state battery that exhibits improved battery performance includes: a positive-electrode collector; a negative-electrode collector; a positive electrode layer formed on the positive-electrode collector and containing a positive-electrode active material and a solid electrolyte; a negative electrode layer formed on the negative-electrode collector and containing a negative-electrode active material and a solid electrolyte; and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer and containing a solid electrolyte. At least one of the solid electrolyte and the solid electrolyte partly represents a porous solid electrolyte.

Abstract: There is disclosed an electrolyte composition comprising one or two or more polymers, oxide particles having a hydrophobic surface, at least one electrolyte salt selected from the group consisting of a lithium salt, a sodium salt, a calcium salt, and a magnesium salt, and an ionic liquid.

Abstract: Liquid electrolytes for a lithium metal battery comprise an aprotic solvent, an ionic liquid, a lithium salt, 8 mol % to 30 mol % hydrofluoroether and up to 5 mol % additives. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.

Abstract: A method of manufacturing a non-aqueous secondary battery includes the steps of preparing a case main body, preparing a lid, applying a lubricant to a contact location, and assembling a lid to an open end of the case main body. In the step of preparing a lid, a lid to be fitted to the open end of the case main body is prepared. In the step of applying a lubricant, the lubricant is applied to at least a portion of the contact location at which the case main body and the lid are in contact with each other. In the step of assembling the lid to the open end, the lid is assembled to the open end with the lubricant having been applied to the contact location. The lubricant may be a solvent used in a non-aqueous electrolyte solution for non-aqueous secondary batteries.

Abstract: An electrochemical device including a negative electrode made of a magnesium-based material includes an electrolyte solution consisting of a solvent composed of linear ether, and magnesium salt dissolved in the solvent, in which the magnesium salt is dissolved in 3 moles or more per liter of the solvent.

Abstract: The present disclosure provides a fast charge long lifetime secondary battery, a battery module, a battery pack, and a power consumption device. In some embodiments, a secondary battery, comprising an electrode assembly and an electrolytic solution, the electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separator, the positive electrode plate comprises a positive electrode tab, and the negative electrode plate comprises a negative electrode tab are provided. In those embodiments, the positive electrode tab has the following temperature rise coefficient: ? = C 1 ? 0 ? S ? 1 where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.

Abstract: Disclosed is an all-solid-state battery including a positive electrode, a negative electrode, and a solid electrolyte layer interposed between the positive electrode and the negative electrode. At least one of the positive electrode and the negative electrode contains first solid electrolyte particles. The solid electrolyte layer contains second solid electrolyte particles having ion conductivity. An average particle diameter D1 of the first solid electrolyte particles, and an average particle diameter D2 of the second solid electrolyte particles satisfy D2>D1.

Abstract: An all-solid battery includes at least a unit cell including a positive electrode, a negative electrode, and an ion-conductive solid electrolyte layer interposed between the positive electrode and the negative electrode. The solid electrolyte layer includes an inorganic solid electrolyte, and a resistance R1 of the unit cell when the pressure applied in a thickness direction of the unit cell is 100 kPa is 90 ?cm2 or less.

Abstract: Provided is a stacked electrode assembly including: a lowermost electrode arranged on a lowermost portion of the stacked electrode assembly; an uppermost electrode arranged on an uppermost portion of the stacked electrode assembly; at least one unit stacked body arranged between the lowermost electrode and the uppermost electrode and including a positive electrode, a negative electrode, and a separator, the separator being arranged between the positive electrode and the negative electrode; and a separator arranged between the lowermost electrode and the at least one unit stacked body, and between the at least one unit stacked body and the uppermost electrode. A capacity and energy density of a lithium battery may be improved by employing an electrode including a mesh electrode current collector as the lowermost electrode or the uppermost electrode of the stacked electrode assembly.

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising metal amide bases are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode and an electrolyte composition comprising at least one electrolyte additive comprising a metal amide base compound.

Abstract: A solid electrolyte material can include a halide material represented by Li3-x-fMfRE1-yMeky(Cl1-u-p-qBruFpIq)6-x+y*(k-3), wherein the halide material includes at least two halide anions. The halide material can include reduced content of one or more impurity phase, including binary halide phase, oxyhalide phase, or ternary halide phase.

Abstract: The present disclosure provides a nonaqueous electrolyte solution which contains: a nonaqueous solvent containing acetonitrile and vinylene carbonate; and a compound represented by general formula (1) R1-A-R2 (wherein A represents a divalent group that has a structure represented by one of formulae (1-2) to (1-5); and each of R1 and R2 independently represents an aryl group, an alkyl group which may be substituted by a halogen atom, while having from 1 to 4 carbon atoms, an alkyl group, a vinylidene group which may be substituted by a halogen atom, or an aryl group which may be substituted by a halogen atom; or alternatively, R1 and R2 may combine with each other and form, together with A, a ring structure that may have an unsaturated bond).

Abstract: Provided is an all-solid lithium battery including: a low-angle oriented positive electrode plate that is a lithium complex oxide sintered plate having a porosity of 10 to 50%; a negative electrode plate containing Ti and capable of intercalating and deintercalating lithium ions at 0.4 V or higher (vs. Li/Li+); and a solid electrolyte having a melting point lower than the melting point or pyrolytic temperature of the oriented positive electrode plate or the negative electrode plate, wherein at least 30% of pores in the oriented positive electrode plate is filled with the solid electrolyte in an observation of a cross-section perpendicular to a main face of the oriented positive electrode plate.

Abstract: An oxide including a compound represented by Formula 1: (LixM1y)(M2)3-?(M3)2-?O12-zXz??Formula 1 wherein, in Formula 1, 6?x?8, 0?y<2, ?0.2???0.2, ?0.2???0.2, and 0?z?2; M1 is a monovalent cation, a divalent cation, a trivalent cation, or a combination thereof; M2 is a monovalent cation, a divalent cation, a trivalent cation, or a combination thereof; M3 is a monovalent cation, a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, a hexavalent cation, or a combination thereof; wherein at least one of M1, M2, or M3 includes at least four elements; and X is a monovalent anion, a divalent anion, a trivalent anion, or a combination thereof.

Abstract: A solid oxide fuel cell (SOFC) system included high thermal conductivity materials such as copper 10 increase thermal energy transfer by thermal conduction. The copper is protected from oxidation by nickel electroplating and protected from thermal damage by providing Hastelloy liners inside combustion chambers. Monel elements are used in the incoming air conduits to prevent cathode poisoning.