Abstract: A secondary battery, including an electrode assembly and a housing accommodating the electrode assembly. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed there between. The first electrode plate and the second electrode plate are wound to form the electrode assembly. A tab is disposed in the first electrode plate and protrudes from the housing; and an adhesive layer is disposed in the tab. The adhesive layer includes a first portion sandwiched between a package area of the housing and a second portion extending from the first portion along a length direction of the tab. In a width direction of the tab, the first portion has a width greater than that of the second portion. In the length direction of the tab, the second portion protrudes into a space enclosed by an innermost layer of the separator.

Abstract: To provide a negative electrode for a secondary battery and a secondary battery having a large energy density and a capacity less likely to reduce even after repeated charging and discharging, and manufacturing methods thereof. The above-described problem is solved by a negative electrode for a secondary battery (3) comprising a negative electrode active material layer (3?) including at least a silicon-based active material and a binder, and a negative electrode current collector (14) having a structural form in which the silicon-based active material has an amorphous region including lithium and island-shaped lithium carbonate is distributed in the amorphous region.

Abstract: A capacitor may be configured with a dielectric laminate disposed on ordered or non-ordered structures. Materials for the dielectric laminate have high dielectric constant and reduce leakage current to increase breakdown voltage of the device. These materials may include titanium dioxide (TiO2) and silicon dioxide (SiO2). In one implementation, the capacitor may reside on a substrate. The capacitor may have structure (e.g., nano-tubes, nano-holes, etc;) disposed on the substrate having a surface area greater than the surface area of the substrate and a laminate conformally coating the structure, the laminate comprising a first layer and a second layer with materials that configure the capacitor with an energy density of at least 60 Wh/Kg.

Abstract: A manufacturing method for manufacturing a separator for a fuel cell includes a step of applying a laser beam to a surface of a plate-shaped metal plate having a rectangular shape such that an application range of the laser beam extends linearly. In the step, the laser beam is applied such that the application range includes a high-energy region in which energy to be given by the laser beam per unit distance in a direction where the application range extends linearly is high, and a low-energy region in which the energy is low. The high-energy region includes a first region, a second region, a third region, and a fourth region. The first region and the second region extend in parallel to one of long sides of the rectangular shape. The third region and the fourth region extend in parallel to the other one of the long sides.

Abstract: Systems, methods, and apparatus for encapsulating objects like that of microelectronic components and batteries. The system includes three successive layers that include a first covering layer composed of an electrically insulating material deposited by atomic layer deposition, which at least partly covers the object, a second covering layer that includes parylene and/or polyimide, and which is disposed on the first covering layer, and a third covering layer deposited on the second covering layer in such a way as to protect the second encapsulation layer, namely, with respect to oxygen, and thereby increase the service life of the object.

Abstract: A current collector of an electrochemical actuator is proposed, the current collector being coated with an interfacing layer, the interfacing layer being formed by coating on the current collector with a composition, the composition being formed by particles, at least 50% of the particles having a mean diameter by volume of less than or equal to 10 micrometers.

Abstract: A pouch-type secondary battery includes an electrode assembly, and a pouch member in which the electrode assembly is accommodated and a sealing portion is formed on an edge of the pouch member, where the sealing portion protruding on one side surface extends in a diagonal direction towards the other side surface adjacent to the at least one side surface.

Abstract: Materials and methods for preparing electrode film mixtures and electrode films including reduced damage bulk active materials are provided. In a first aspect, a method for preparing an electrode film mixture for an energy storage device is provided, comprising providing an initial binder mixture comprising a first binder and a first active material, processing the initial binder mixture under high shear to form a secondary binder mixture, and nondestructively mixing the secondary binder mixture with a second portion of active materials to form an electrode film mixture.

Abstract: An electrochemical device includes a cathode current collector, a first cathode active material layer, a second cathode active material layer and an insulating layer. The first cathode active material layer covers a first portion of a first surface of the cathode current collector, and the insulating layer covers a second portion of the first surface of the cathode current collector that is different from the first portion. A first distance exists between the insulating layer and the first cathode active material layer in a longitudinal direction of the cathode current collector. By providing a gap between the active material layer in a two-layer structure and the insulating layer in the cathode, thereby ensuring the mechanical safety performance of the electrochemical device.

Abstract: The present invention relates to a lithium-carbon composite having cavities formed therein and a method of manufacturing the same, the method including adding and mixing an organic solvent having an aromatic ring with a lithium precursor, arranging a pair of metal wires in the organic solvent, forming a lithium-carbon composite in which a carbon body is doped with lithium through plasma discharge in a solution, and annealing the lithium-carbon composite in order to remove hydrogen from the lithium-carbon composite and form cavities in the lithium-carbon composite. Accordingly, a lithium-carbon composite can be simply synthesized using plasma discharge in a solution, and the synthesized lithium-carbon composite can be annealed to thus form cavities therein, thereby increasing the lithium charge and discharge performance of a lithium secondary battery using the lithium-carbon composite.

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 web coating platform for depositing molten metal on flexible substrates is provided. The web coating platform can be used for manufacturing solid lithium anodes for use in energy storage devices, for example, rechargeable batteries. The coating platform can be designed for double-sided coating of a continuous flexible substrate (e.g., a copper foil) with molten lithium followed by double-sided lamination or passivation. The coating platform integrates novel coating elements unique to handling and processing molten metals. For example, some implementations of the present disclosure incorporate double-sided molten metal coating elements, which include at least one of a molten metal application assembly (e.g., kiss roller, slot-die, Meyer bar, and/or gravure roller), a primary melt pool assembly, a secondary melt pool assembly, and an engagement mechanism.

Abstract: A method for manufacturing a spiral-wound battery is provided. The method includes the following steps: performing surface plasma treatment on a current collector; coating electrode slurry on a surface of the current collector, to form an electrode foil; performing surface plasma treatment on an isolating film, to improve hydrophilia of the isolating film; arranging and electrically connecting a plurality of metal conductive handles to the electrode foil, where the electrode foil is divided into a plurality of sections, and each section of the electrode foil corresponds to a jelly roll; and sequentially winding the isolating film and the electrode foil to form the spiral-wound battery. According to the method for manufacturing a spiral-wound battery provided in the present disclosure, internal impedance of a jelly roll is effectively reduced, and advantages of a high yield and low costs of a manufacturing process of the spiral-wound battery are maintained.

Abstract: A web coating platform for depositing molten metal on flexible substrates is provided. The web coating platform can be used for manufacturing solid lithium anodes for use in energy storage devices, for example, rechargeable batteries. The coating platform can be designed for double-sided coating of a continuous flexible substrate (e.g., a copper foil) with molten lithium followed by double-sided lamination or passivation. The coating platform integrates novel coating elements unique to handling and processing molten metals. For example, some implementations of the present disclosure incorporate double-sided molten metal coating elements, which include at least one of a molten metal application assembly (e.g., kiss roller, slot-die, Meyer bar, and/or gravure roller), a primary melt pool assembly, a secondary melt pool assembly, and an engagement mechanism.

Abstract: A purpose of the present invention is to provide a lithium ion secondary battery having improved battery characteristics. The lithium ion secondary battery according to the present invention comprises a negative electrode comprising a negative electrode active material comprising a silicon material and an electrolyte solution comprising an electrolyte solvent comprising an open chain sulfone compound, a fluorinated cyclic carbonate and an open chain carbonate and a supporting salt comprising LiN(FSO2)2.

Abstract: A lithium metal oxide (LMO) cathode includes a current collector having a length defining a first end and a second end, a width, and a first side and a second side, LMO active material applied to the first side and the second side of the current collector such that the LMO active material applied to each respective side of the current collector has an inner face contiguous with the current collector and an outer face, and a plurality of channels extending widthwise across the cathode within the LMO active material applied to the first and second sides. The LMO active material on each current collector side can have a thickness of about 100 ?m to about 400 ?m. The channels on the same side of the current collector can be spaced apart by 0.1 mm to 10 mm. The channels can have widths of 10 ?m to 60 ?m.

Abstract: Articles and methods including composite layers for protection of electrodes in electrochemical cells are provided. In some embodiments, the composite layers comprise a polymeric material and a plurality of particles.

Abstract: A solid electrolyte composition includes: an inorganic solid electrolyte (A) having ion conductivity of a metal belonging to Group 1 or Group 2 in the periodic table; a binder (B); and a dispersion medium (C), in which the binder (B) includes a first binder (B1) that precipitates by a centrifugal separation process and a second binder (B2) that does not precipitate by the centrifugal separation process, the centrifugal separation process being performed in the dispersion medium (C) at a temperature of 25° C. at a centrifugal force of 610000 G for 1 hour, and a content X of the first binder (B1) and a content Y of the second binder (B2) satisfy the following expression, 0.01?Y/(X+Y)<0.10.

Abstract: A solid electrolyte composition includes: an inorganic solid electrolyte (A) having ion conductivity of a metal belonging to Group 1 or Group 2 in the periodic table; a binder (B); and a dispersion medium (C), in which the binder (B) includes a first binder (B1) that precipitates by a centrifugal separation process and a second binder (B2) that does not precipitate by the centrifugal separation process, the centrifugal separation process being performed in the dispersion medium (C) under a specific condition, and a content X of the first binder (B1) and a content Y of the second binder (B2) satisfy the following expression, 0.10?Y/(X+Y)?0.80.

Abstract: An all-solid-state battery includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The solid electrolyte layer separates the positive electrode layer from the negative electrode layer. The positive electrode layer includes a positive electrode active material, a conductive material, an oxide-based lithium ion conductor, and a sulfide-based solid electrolyte. A cross section of the positive electrode layer satisfies a relational expression (1): 3%?SB/SA?30%. In the relational expression (1), “SA” represents a partial area of the oxide-based lithium ion conductor that is in contact with the positive electrode active material, and “SB” represents a partial area of the oxide-based lithium ion conductor that is surrounded by the sulfide-based solid electrolyte.

Abstract: The present disclosure relates to a secondary battery electrode, a manufacturing method for the same, and an electrode assembly, and more particularly, to a secondary battery electrode, a manufacturing method for the same, and an electrode assembly having improved stability. In accordance with an exemplary embodiment, a secondary battery electrode includes a current collector that extends in one direction, a first active material layer provided on one surface of the current collector and including a first inclined portion and a first protruding portion, and a second active material layer provided on the other surface of the current collector and including a second inclined portion and a second protruding portion. In particular, a position of the second protruding portion is controlled on the second active material layer to be disposed at a position that is not directly opposite to the first inclined portion with respect to the current collector.

Abstract: A clamping device for an electrochemical cell stack is provided. The clamping device can include a first plate and a second plate. The second plate can be positionable relative to the first plate such that a space between the first plate and the second plate can be sized to receive an electrochemical cell stack. The device also can include a coupling member coupling the first plate to the second plate. At least one of the first and second plates can be movable away from the other plate. The coupling member can have a first end portion and a second end portion. The device further can include an elastic member disposed between the first end portion and the second end portion.

Abstract: A composite cathode active material includes a cathode active material particle; and a coating layer on a surface of the cathode active material particle, wherein the coating layer includes an acetate, wherein the acetate comprises an alkali metal acetate, an alkaline earth metal acetate, a transition metal acetate, or a combination thereof, or a derivative thereof.

Abstract: Provided is a battery comprising a cathode, an anode, and an electrolyte layer. The electrolyte layer includes a first electrolyte layer and a second electrolyte layer. The first electrolyte layer includes a first solid electrolyte material. The second electrolyte layer includes a second solid electrolyte material which is a material different from the first solid electrolyte material. The first solid electrolyte material includes lithium, at least one kind selected from the group consisting of metalloid elements and metal elements other than lithium, and at least one kind selected from the group consisting of chlorine, bromine, and iodine. The first solid electrolyte material does not include sulfur.

Abstract: Provided are composite particles for an all-solid-state secondary battery electrode with which it is possible to form an electrode for an all-solid-state secondary battery that can cause an all-solid-state secondary battery to display excellent output characteristics, and a method of producing these composite particles. The composite particles for an all-solid-state secondary battery electrode contain an electrode active material, a binder, and an inorganic solid electrolyte that is distributed more in an outer part than in an inner part, and have a volume-average particle diameter of not less than 5 ?m and not more than 90 ?m. The method of producing the composite particles for an all-solid-state secondary battery electrode includes granulating a slurry composition containing an electrode active material and a binder to obtain base particles and externally adding an inorganic solid electrolyte to the base particles.

Abstract: A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints and at least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondary battery is less than 20%.

Abstract: A gas collecting apparatus for collecting gas generated in a secondary battery comprising an electrode assembly and a flexible pouch case containing the electrode assembly therein, the gas-collecting apparatus comprising an insert plate part including a through-hole and a pressing jig part having a gas moving path, and the gas-collecting apparatus capable of easily collecting the gas regardless of the standard size and shape of the secondary battery.

Abstract: A main object of the present disclosure is to provide a solid electrolyte with excellent ion conductivity. The present disclosure achieves the object by providing a solid electrolyte comprising: a Li element, a P element, a S element, a Br element, and an I element; and crystal phase A having a peak at a position of 2?=20.2°±0.5°, 23.6°±0.5° in an X-ray diffraction measurement using a CuK? ray; wherein a crystallite size of the crystal phase A is 16.0 nm or more.

Abstract: A method for providing a catalyst-coated polymer electrolyte membrane for a membrane electrode assembly of a fuel cell with at least one functional coating made of a material includes printing directly the material onto the catalyst-coated polymer electrolyte membrane by a non-contact printing method.

Abstract: A resin current collector provides means for improving the cycle characteristics in a lithium ion battery and includes a polyolefin resin, and a conductive carbon filler. The total surface area of the conductive carbon filler contained in 1 g of the resin current collector is 7.0 m2 or more and 10.5 m2 or less.

Abstract: A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.

Abstract: A gas-collecting apparatus for collecting gas generated in a secondary battery including an electrode assembly and a rigid battery case accommodating the electrode assembly therein, the gas-collecting apparatus comprising: a pressing jig part for pressing one surface of the battery case; a gas collecting pipe provided with the pressing jig part; a sealing part inserted between the pressing jig part and one surface of the battery case; and a fixing unit for fixing the pressing jig part and the battery case with the sealing member inserted between the pressing jig part and the battery case, and the gas-collecting apparatus capable of easily collecting the gas regardless of the standard size and shape of the secondary battery.

Abstract: A porous fluorine resin film in which a fibril structure is stabilized through impregnation coating of a water-repellent and oil-repellent polymer having a high oil repellency grade, and free shrinkage also proceeds before impregnation and application of the water-repellent and oil-repellent polymer, thereby improving dimensional stability, and a method for preparing the porous fluorine resin film.

Abstract: A battery having a polyvalent metal as the electrochemically active material in the anode which also includes a solid ionically conductive polymer material.

Abstract: The present disclosure relates to an electrode for supercapacitor, preparation method and use thereof. The electrode has an electrode terminal, an active layer and a coating layer from inside to outside. A material for preparing the coating layer includes an oxygenated compound, which contains at least one of transition metal elements or is doped with a substance containing a transition metal element. The coating layer on the surface of the active layer prevents organic electrolytes from being easily adsorbed and nucleated in the porous structure of the electrode surface due to interface defects, and facilitates to weaken the interface problems existing between the electrolyte and the electrode surface. The capacitor can significantly increase the operating voltage window (may be up to above 4V) and capacitance of the supercapacitor, and further increase energy density thereof.

Abstract: A lithium borosilicate composition, consisting essentially of a system of lithium oxide in combination with silicon oxide and boron oxide, wherein said lithium borosilicate comprises between 70-83 atomic % lithium based on the combined atomic percentages of lithium, boron and silicon, and wherein said lithium borosilicate is a glass, is disclosed.

Abstract: A dual electroplating cell comprising: (a) an electrolyte component containing therein ions of a first metal; (b) a porous cathode current collector having surface areas to capture and store metal ions directly thereon, wherein the cathode current collector has a specific surface area greater than 100 m2/g that is in direct contact with said electrolyte; (c) a porous anode current collector having surface areas to capture and store metal ions thereon, wherein the anode current collector has a specific surface area greater than 100 m2/g that is in direct contact with the electrolyte; (d) a porous separator disposed between the anode and the cathode; and (e) an ion source of the first metal disposed in the anode current collector or the cathode current collector and in electronic contact therewith to obtain an open circuit voltage (OCV) from 0.3 volts to 3.5 volts when the cell is made.

Abstract: An electrochemical cell includes solid-state, printable anode layer, cathode layer and non-aqueous gel electrolyte layer coupled to the anode layer and cathode layer. The electrolyte layer provides physical separation between the anode layer and the cathode layer, and comprises a composition configured to provide ionic communication between the anode layer and cathode layer by facilitating transmission of multivalent ions between the anode layer and the cathode layer.

Abstract: Processes for applying magnetic fields to articles such as a layer or layer-coated articles, and more particularly to coatings having graphite particles, preferably for manufacture of negative electrodes having aligned graphite particles, for example for fast-charging lithium-ion batteries. The application of magnetic fields may be continuous. For this, magnetic tools with permanent magnets may be used for applying magnetic fields, wherein an article is moved relative to a magnetic tool. Application of magnetic field is made before the initiation of a drying phase and/or during a drying phase.

Abstract: A system or method for determining a battery state can include characterizing a response of a plurality of batteries to an applied load, generating a set of models based on the response of the plurality of batteries to the applied load, measuring battery properties of a battery using a sensor, and using a state estimator to determine a battery state associated with a battery.

Abstract: The disclosure provides electrochemical cells including a separator enclosure which encloses at least a portion of a positive or negative electrode. In an embodiment, the separator generates a contact force or pressure on at least a portion of the electrode which can improve the performance of the cell. The disclosure also provides methods for charging an electrochemical cell.

Abstract: There is provided a production method of a lithium-containing composite oxide capable of improving performances of cycle characteristics, rate characteristics, and the like of a lithium ion secondary battery. A production method of a lithium-containing composite oxide is characterized in that when producing a lithium-containing composite oxide by mixing a transition metal hydroxide containing Ni and Mn essentially and a lithium source and heating the mixture, a transition metal hydroxide having a crystallite diameter of the (100) plane being 35 nm or less in a crystal structure model in the space group P-3m1 of an X-ray diffraction pattern is used.

Abstract: Provided is method of improving fast-chargeability of a lithium secondary battery, wherein the method comprises disposing a lithium ion reservoir between an anode and a porous separator and configured to receive lithium ions from the cathode through the porous separator when the battery is charged and to enable the lithium ions to enter the anode in a time-delayed manner. In some embodiments, the reservoir comprises a conducting porous framework structure having pores and lithium-capturing groups residing in the pores, wherein the lithium-capturing groups are selected from (a) redox forming species that reversibly form a redox pair with a lithium ion; (b) electron-donating groups interspaced between non-electron-donating groups; (c) anions and cations wherein the anions are more mobile than the cations; or (d) chemical reducing groups that partially reduce lithium ions from Li+1 to Li+?, wherein 0<?<1.

Abstract: Provided is a doping system in which an active material in a strip-shaped electrode precursor having a layer including an active material is doped with alkali metal. The doping system includes a doping tank, a conveying unit, a counter electrode unit, a connection unit, and a porous insulating member. The doping tank accommodates a solution including alkali metal ions. The conveying unit conveys the electrode precursor along a path passing through the inside of the doping tank. The counter electrode unit is accommodated in the doping tank. The connection unit electrically connects the electrode precursor and the counter electrode unit. The porous insulating member is disposed between the electrode precursor and the counter electrode unit, and is not in contact with the electrode precursor.

Abstract: The present disclosure provides a modified positive electrode active material. The modified positive electrode active material comprises a positive electrode active material inner core; a metal oxide layer comprising a metal oxide and coated on a surface of the positive electrode active material inner core; and a polymer layer comprising a polymer and coated on a surface of the metal oxide layer, the polymer being one or more selected from a group consisting of polyacrylic acid, polymethyl methacrylate, polyacrylamide and lithium polyacrylate. The modified positive electrode active material of the present disclosure has better structure stability and thermal stability, when the modified positive electrode active material is applied in the electrochemical energy storage device, cycle performance and safety performance of the electrochemical energy storage device can be significantly improved without decreasing energy density of the electrochemical energy storage device.

Abstract: A rechargeable lithium battery includes a metal-containing foam current collector, and an active mass that fills in the metal-containing foam current collector, the active mass including an active material. The electrode includes a central region and a surface region. The central region corresponds to a ±5% upper and lower area with a reference to a central thickness line of the electrode. A volume ratio of the metal and the active material in the central region is different from a volume ratio of the metal and the active material in the surface region.

Abstract: A current collector for an electrochemical cell is described. Unlike conventional current collector designs, the current collector does not have an unperforated perimeter frame completely bordering or surrounding a perforated interior region. Instead, only that portion of the current collector adjacent to the connector tab is unperforated. Otherwise, perforations extend directly to the perimeter edge.

Abstract: Features for rechargeable lithium ion batteries, the batteries optionally employing vertically aligned carbon nanotube scaffolding, are described. Methods of manufacture and a solid polymer electrolyte are described for 3-dimensional battery architectures using the vertically aligned carbon nanotubes. Poly(ethylene)oxide bis(azide) and graphene poly(lactic acid) composite coatings are also described for use in such batteries or others.

Abstract: A component for an electrochemical cell is formed by additive manufacturing process. The additive manufacturing process can be repeated to produce fuel cell stack.

Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode including a positive electrode active material layer, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. At least one of the positive electrode active material layer and the negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 10 ml per 1 g when heated at 350° C. for 1 minute.