Abstract: Provided is a lithium metal secondary battery ensuring electrode-separator adhesive strength and a method for fabricating the same. The lithium metal secondary battery according to the present disclosure includes a negative electrode, a separator and a positive electrode, the negative electrode including a lithium metal foil as a negative electrode material, wherein a nano imprint pattern structure is formed on a lithium metal foil surface which is a surface of the negative electrode facing the separator, and the negative electrode and the separator are adhered to each other.

Abstract: A metal or metal-ion battery composition is provided that comprises anode and cathode electrodes along with an electrolyte ionically coupling the anode and the cathode. At least one of the electrodes includes active material particles provided to store and release ions during battery operation. Each of the active material particles includes internal pores configured to accommodate volume changes in the active material during the storing and releasing of the ions. The electrolyte comprises a solid electrolyte ionically interconnecting the active material particles.

Abstract: A method for deposition of solid electrolyte material on electrode active material, comprising the steps of a feed of electrode active material from a first storage unit to a first dosing means with a simultaneous feed of solid electrolyte material from a second storage unit to a second dosing means, a feed of inert gas to the first dosing means and to the second dosing means via an inert gas feed means, a feed of the electrode active material via the first dosing means into a reaction space with simultaneous feed of the solid electrolyte material via the second dosing means into the reaction space, wherein the electronic structure of the electrode active material and of the solid electrolyte material is influenced during the feed to the reaction space via the first and second dosing means, such that the electrode active material and the solid electrolyte material bond to one another at least in part while retaining the crystal structure of the solid electrolyte material.

Abstract: A separator for secondary batteries, including: a separator substrate having at least one surface, wherein the separator substrate includes a polyolefin-based polymer resin having a porous structure and a coating layer is applied to one surface or opposite surfaces of a separator substrate made of a polyolefin-based polymer resin having a porous structure, wherein the coating layer includes a thickener, a filler, a particle-type binder, and a dissolution-type binder, wherein the thickener comprises carboxymethyl cellulose, and wherein an amount of the particle-type binder is greater than an amount of the dissolution-type binder.

Abstract: A vehicle includes a traction battery and a battery cooling system arranged to cool the battery. A controller of the vehicle is programmed to, responsive to current of the battery exceeding a current threshold and a temperature of the battery being less than a threshold temperature, activate the battery cooling system to cool the battery.

Abstract: Provided is provided a lithium metal battery which includes a composite solid electrolyte membrane interposed between a lithium metal negative electrode and a positive electrode, wherein the composite solid electrolyte membrane includes: a phase transformation layer containing a plasticizer and a lithium salt; a porous polymer sheet layer; and a solid polymer electrolyte layer, the phase transformation layer, the porous polymer sheet layer and the solid polymer electrolyte layer stacked successively, and the phase transformation layer is disposed in such a manner that it faces the lithium metal negative electrode. The lithium metal battery shows reduced resistance at the interface with an electrode and increased ion conductivity, has improved safety, and provides improved energy density of an electrode.

Abstract: A secondary battery including external terminals provided on an outer side of a sealing plate of a battery case, lead terminals provided on an inner side of the sealing plate, the lead terminals connected to the external terminals being fixed to the sealing plate, collector members disposed on the inner side of the sealing plate, the collector members being connected to the lead terminals, and pluralities of collector tabs connected to a positive electrode plate and a negative electrode plate at an end portion of an electrode body. The pluralities of collector tabs are connected to the collector members, and the electrode body is accommodated inside the battery case while having the pluralities of collector tabs be in a bent state in an inner space defined by the sealing plate.

Abstract: Provided is particulate of a cathode active material for a lithium battery, comprising one or a plurality of cathode active material particles being embraced or encapsulated by a thin layer of a high-elasticity polymer having a recoverable tensile strain no less than 5%, a lithium ion conductivity no less than 10?6 S/cm at room temperature, and a thickness from 0.5 nm to 10 ?m, wherein the polymer contains an ultrahigh molecular weight (UHMW) polymer having a molecular weight from 0.5×106 to 9×106 grams/mole. The UHMW polymer is preferably selected from polyacrylonitrile, polyethylene oxide, polypropylene oxide, polyethylene glycol, polyvinyl alcohol, polyacrylamide, poly(methyl methacrylate), poly(methyl ether acrylate), a copolymer thereof, a sulfonated derivative thereof, a chemical derivative thereof, or a combination thereof.

Abstract: The present invention aims to provide an all-solid-state lithium ion secondary battery having a high reliability which does not have a decrease in battery capacity due to absorption of moisture in the air. The all-solid-state lithium ion secondary battery is provided with a battery body having an electrolyte layer between a positive electrode layer and a negative electrode layer, a pair of terminal electrodes respectively connected to the positive electrode layer and the negative electrode layer at both end portions of the battery body, and a moisture-proof layer disposed on surfaces excluding the surfaces to be the terminal electrodes, wherein the moisture-proof layer contains a cured product of a composition containing a polymer compound and metal compound particles.

Abstract: The present invention relates to a composition for a polymer electrolyte and a lithium secondary battery using the same, and particularly, to a composition for a polymer electrolyte which includes a single ion-conductive polymer including a unit represented by Chemical Formula 1; and at least one additive selected from the group consisting of a ceramic electrolyte and inorganic particles, wherein a weight ratio of the single ion-conductive polymer:the additive(s) is 1:0.1 to 1:9, and a lithium secondary battery which exhibits an improvement in cell performance by including the same.

Abstract: A battery and a method of fabricating a porous membrane are disclosed. The battery includes an anode, a cathode, and a battery separator. The battery separator is positioned between the anode and the cathode and includes a macroporous substrate and a mesoporous silica thin film (MSTF) with perpendicular mesopore channels. The MSTF is positioned on the macroporous substrate. The method includes the following steps. A polymer film is formed on a macroporous substrate. A MSTF with perpendicular mesopore channels is grown on the polymer film. The polymer film is removed to form the porous membrane.

Abstract: The present invention provides an electrode assembly in which a plurality of unit cells are disposed, wherein one of the unit cells comprises: a first double-sided electrode in which a slurry is on opposite surfaces of a first collector; a separator adjacent to the first double-sided electrode; a second double-sided electrode adjacent to the separator and in which a slurry is on opposite surfaces of a second collector; and a single-sided electrode adjacent to the second double-sided electrode and in which the slurry is only on one surface of a third collector, the one surface facing the second double-sided electrode, the single-sided electrode having a coating layer on the slurry thereof, the coating layer preventing contact between the slurry of the single-sided electrode and the slurry on one of the surfaces of the second collector that faces the single-sided electrode, the coating layer allowing ions to pass therethrough.

Abstract: Provided are a separator for a secondary battery and an electrochemical device using the same. More specifically, provided is a composite separator having a more excellent cycle life and including a coating layer which is not easily swollen in an electrolyte solution. In the composite separator for a secondary battery according to an aspect of the present invention, distortion or lifting phenomenon is suppressed even when the heat and pressure are applied without significant decrease in permeability of the separator.

Abstract: (A) A first lithium-ion battery is prepared. (B) A capacity loss of the first lithium-ion battery is detected. (C) Capacity restoration treatment is performed on the first lithium-ion battery having a detected capacity loss to produce a second lithium-ion battery. The first lithium-ion battery includes at least a positive electrode, a negative electrode, and an electrolyte solution. The electrolyte solution contains a lithium salt, a solvent, and an additive in advance of the detecting a capacity loss. The additive has an oxidation potential. The oxidation potential is higher than an OCP of the positive electrode in the first lithium-ion battery having a state of charge of 100%. The capacity restoration treatment involves charging the first lithium-ion battery in such a way that at least part of the additive is oxidized.

Abstract: Provided are an electrolyte for low temperature operation of lithium titanate electrodes, graphite electrodes, and lithium-ion batteries as well as electrodes and batteries employing the same. The electrolyte contains 1 to 30 vol % of a low molecular weight ester having a molecular weight of less than 105 g/mol and at least one non-fluorinated carbonate. An electrolyte additive may include 0.1 to 10 wt % of fluorinated ethylene carbonate, particularly when used with a graphite anode. Another electrolyte contains a high content of the low molecular weight ester of at least 70 vol %.

Abstract: There is provided a fuel cell cooling system that has: a first path through which an electrical insulating coolant, that cools a fuel cell, circulates; a second path through which a coolant, that exchanges heat with the electrical insulating coolant, circulates, and to which a radiator, that releases heat of the coolant, is connected; and a heat exchanger that carries cut heat exchange between the first path and the second path.

Abstract: A humidity transfer assembly includes a pressure vessel and a humidity transfer device disposed in the pressure vessel. The humidity transfer device includes an enclosure, a first inlet line fluidly coupled to the enclosure and configured to supply anode exhaust thereto, a first outlet line fluidly coupled to the enclosure and configured to output anode exhaust therefrom, and a second inlet line fluidly coupled to the enclosure and configured to supply feed gas thereto. The humidity transfer device is configured to transfer steam from anode exhaust to feed gas and to output feed gas into the pressure vessel.

Abstract: There is disclosed a polymer electrolyte composition that comprises a polymer having a structural unit represented by the following formula (1), at least one electrolyte salt selected from the group consisting of lithium salts, sodium salts, and magnesium salts, and a molten salt having a melting point of 250° C. or less: wherein X? represents a counter anion.

Abstract: A separator for a lithium-sulfur battery including a separator base; and a coating layer present on one or more surface of the separator base, wherein the coating layer includes a structural unit (A) derived from one or more compound including (i) one or more group selected from the group consisting of a catechol group and a pyrogallol group, and (ii) one or more sulfonic acid group; and a structural unit (B) derived from dopamine, and wherein the coating layer includes a sulfonic acid anion group. Also, a lithium-sulfur battery manufactured using the same, and a method for preparing the separator.

Abstract: A lithium ion secondary battery includes a positive electrode having a positive electrode active material layer on a current collector, a negative electrode having a negative electrode active material layer on a current collector, and a separator disposed between the positive electrode and the negative electrode and impregnated with a non-aqueous electrolyte solution. The positive electrode active material layer contains a positive electrode active material and a binder, the negative electrode active material layer contains a negative electrode active material and a binder, the binder of the negative electrode active material layer contains a copolymer of vinyl alcohol and an alkali metal neutralized product of ethylenically unsaturated carboxylic acid, and the separator includes a polymeric base material containing an inorganic compound or includes a polymer having a melting point or glass transition temperature of 140° C. or higher.