251results about "Electrolyte layer coating" patented technology

The invention relates to the technical field of coating machines, in particular to multi-layer coating equipment and a coating method. The multi-layer coating equipment comprises a base, an unwinding mechanism, a winding mechanism, a plurality of coating mechanisms and a plurality of drying mechanisms, the unwinding mechanism, the winding mechanism, the coating mechanisms and the drying mechanisms are all mounted on the base, and the coating mechanisms and the drying mechanisms are alternately arranged at intervals; a base band released by the unwinding mechanism penetrates through the coating mechanism and the drying mechanism and then is wound on the winding mechanism, the coating mechanism is used for coating slurry on the base band and rolling a coating pattern on the base band, and the drying mechanism is used for drying the base band coated by the coating mechanism. According to the multi-layer coating equipment, after the base band is subjected to coating treatment through the multiple coating mechanisms, each coating mechanism can roll out the corresponding coating pattern on the base band, the multiple coating patterns can be distributed on the base band at intervals and can also be distributed on the base band in a stacked mode, and therefore the multi-layer coating equipment can be used for manufacturing different types of electrode materials.

A solid-state battery having two or more stacked battery elements, each battery element including one or more battery constituent units in which a positive electrode layer and a negative electrode layer oppose each other with a solid electrolyte layer between the positive electrode layer and the negative electrode layer; and an insulating layer interposed between adjacent battery elements of the two or more stacked battery elements, wherein at least one end portion of the insulating layer has a thickness greater than a thickness of a central portion of the insulating layer in a sectional view thereof.

A rotatable drum is provided for supporting a substrate. The rotatable drum includes a curved drum surface for supporting the substrate. The curved drum surface includes a dielectric portion and an electrode coupled to a power source. The electrode is electrically coupled to the curved drum surface and capable of chucking and dechucking the substrate from the curved drum surface at one or more circumferential segments of the curved drum surface.

According to exemplary embodiments, a method for generating a roll map is provided. The method comprises the steps of: collecting measurement data including measurement values of an electrode sheet on the basis of a measurement signal generated by measuring the electrode sheet, the electrode sheet including a plurality of coated part lanes and a plurality of uncoated parts; and processing the measurement data such that the plurality of coated part lanes are differentiated.

An lithium-sulfur battery including an anode structure, a cathode, a separator, and an electrolyte is provided. The electrolyte may be dispersed throughout the cathode and in contact with the anode. An artificial solid-electrolyte interphase (A-SEI) may form on the anode, and a protective layer (e.g., that may be pinhole free) may form within and / or on the A-SEI to face the cathode. The protective layer may be formed from carbonaceous materials, which may provide exposed carbon atoms grafted with one or more ions, such as fluorine anions (F−), uniformly dispersed throughout the protective layer. In addition, the protective layer may include polymeric chains positioned generally opposite to each other. The polymeric chains may cross-link upon exposure to ultraviolet (UV) energetic radiation to form a three-dimensional (3D) lattice having a defined cross-linking density suitable to trap one or more anions during discharge-charge operational cycling of the lithium-sulfur battery.

The present invention relates to a method for manufacturing cells for secondary batteries, and this method is - The first operation involves rewinding the separator film (3), - A second operation involves depositing the first electrode (1) onto the separator film (3), -A third operation in which the first horizontal edge (4) and the first vertical edge (6) of the first electrode (1) are held on the separator film (3) using the first holding element (8), and the second horizontal edge (5) on the opposite side of the first horizontal edge (4) and the first vertical edge (6) of the first electrode (1) is also held using the second holding element (10), - A fourth operation involves unwinding the separator film (3) to cover the first electrode (1), Includes.

Provided are: a sheet for an electrode, the sheet comprising an active material layer precursor layer containing an inorganic solid electrolyte, an active material, and a polymer binder, wherein the active material layer precursor layer contains at most 3 mass% of the polymer binder, an exhibits a filling rate of 35-50%; a method for producing the same; an all-solid secondary battery; and methods for producing an electrode sheet and an all-solid secondary battery using said sheet for an electrode.

The invention relates to a method for manufacturing a cell of a secondary battery, comprising:-a first operation of unwinding a separator (3),-a second operation of depositing a first electrode (1) on the separator (3),-a third operation of holding a first transverse edge (4) and a first longitudinal edge (6) of the first electrode (1) on the separator (3) by means of a first holding element (8), and holding a second lateral edge (5) and a first longitudinal edge (6) opposite the first lateral edge (4) of the first electrode (1) by means of a second holding element (10), a fourth operation of unwinding the diaphragm (3) to cover the first electrode (1).

Provided is a positive electrode which is for an all-solid lithium-ion secondary battery, and can reduce the internal resistance of the all-solid-state lithium-ion secondary battery. The positive electrode is provided with an active material layer including a positive electrode active material and a solid electrolyte material. The positive electrode active material comprises secondary particles formed by agglomerating a plurality of primary particles each containing a lithium transition metal composite oxide. The smoothness of the secondary particles is greater than 0.73 and the circularity of the secondary particles is greater than 0.83.

To provide a solid-state battery having high capacity retention.SOLUTION: A solid-state battery according to the present disclosure includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer in this order. The negative electrode layer includes a negative electrode current collector, and a negative electrode active material layer, in this order, in a direction from the negative electrode layer toward a side of the solid electrolyte layer. When the solid-state battery is fully charged, the negative electrode active material layer has a Li layer, a Li-Mg layer or a Li-Mg-X layer, and a Li-X layer, in this order, in the direction. The X is at least one selected from the group consisting of Sn, Zn, and Al. The Li-X layer is formed on a surface of the solid electrolyte layer.SELECTED DRAWING: None

Provided is an intermediate product of a solid electrolyte. The intermediate product of a solid electrolyte may comprise: a compound in which a cation including thiophenium or thiazolium and an anion including fluorohydrogenate are bound, and a solvent in which the compound is mixed.

A cathode material 10 of the present disclosure includes a cathode active material 100, a coating layer 104 containing a first solid electrolyte 101, and coating at least part of a surface of the cathode active material 100, and a second solid electrolyte 102. The first solid electrolyte 101 contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte 101 to the total volume of the first solid electrolyte 101 and the cathode active material 100 is greater than or equal to 1.0% and less than or equal to 16.0%.

A cathode material of the present disclosure includes a cathode active material, a coating layer containing a first solid electrolyte, and coating at least part of a surface of the cathode active material, and a second solid electrolyte. The first solid electrolyte contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte to the total volume of the first solid electrolyte and the cathode active material is greater than or equal to 5.6% and less than or equal to 8.1%.

The present invention relates to an anode material for a lithium secondary cell, a precursor for the anode material, a lithium secondary cell, and a manufacturing method of the anode material. A precursor for the anode material according to an aspect of the present invention is an anode material precursor containing graphite, wherein the graphite may have peaks in particle size ranges of 2-8 µm and 10-25 µm, respectively, and a particle size distribution with a D50 of 6-23 µm.

A cathode material can include a substrate including an active cathode material and a coating overlying at least a portion of the substrate. The coating material may include CFX and M2CO3, wherein M may include an alkali metal. In a particular embodiment, the coating may include MF. In another particular embodiment, M may include Li.

Disclosed are a method for producing an electrode for a galvanic cell, an electrode for a galvanic cell, a galvanic cell, and uses of the galvanic cell. The method comprises: applying a separator membrane to a planar electrode such that an intermediate space is formed between the planar electrode and the separator membrane; subsequently applying a liquid comprising a particular material to the separator membrane, wherein the liquid comprising material penetrates, by way of capillary forces, at least into the pores of the separator membrane, into the intermediate space between the planar electrode and the separator membrane and into pores of the planar electrode, wherein the liquid is subsequently evaporated. The method makes it easily and inexpensively possible to provide an electrode which exhibits a high energy density at the cell level and high chemical, electrochemical and mechanical stability, exhibits high cycle stability and allows high operating currents.

To provide a coated active material that can suppress an increase in battery resistance.SOLUTION: A coated active material includes an electrode active material and a coating layer that coats the electrode active material, and the coating layer contains an oxide solid electrolyte that includes Li, P, and O elements, and the particle diameter (D50) of the coated active material is 5.5 μm or less.SELECTED DRAWING: Figure 1

An active material contains a composite metal fluoride containing Al, F, and Ti and can occlude and release fluoride ions. The composite metal fluoride is represented by a compositional formula: Al1-xTixFy, where x satisfies 0.01≤x≤0.9 and y satisfies, 2≤y≤4.

A positive electrode 10 according to the present disclosure includes a positive electrode current collector 11 and a positive electrode active material layer 12 supported on the positive electrode current collector 11. The positive electrode active material layer 12 includes a positive electrode active material and a phosphorus compound. The phosphorus compound includes a P=O bond. The positive electrode active material layer 12 is divided into a first region 12a and a second region 12b in a plane direction, a mass ratio P1 / A1 of the phosphorus compound to the positive electrode active material in the first region 12a is 0.2 mass% or more and 8 mass% or less, and a mass ratio P2 / A2 of the phosphorus compound to the positive electrode active material in the second region 12b is less than 0.2 mass%.

Disclosed is a battery manufacturing method. A first stack part (10) is formed by applying a positive active material on one of two main surfaces of a first separator sheet (2.1) and applying a negative active material on the other one of the two main surfaces of the first separator sheet. A second stack part (20) is formed by applying the positive active material onto one of two main surfaces of a second separator sheet (2.2) and applying the negative active material onto the other one of the two main surfaces of the second separator sheet. The first stack part and the second stack part are stacked upon each other with a current collector plate interposed between the first stack part and the second stack part.

The present disclosure provides an evaluation method and a manufacturing method for a battery slurry to obtain a coating layer with satisfactory properties, a battery manufacturing method comprising manufacturing the battery slurry, and a battery slurry capable of obtaining a coating layer with satisfactory properties. The disclosure's method for evaluating a battery slurry comprises measuring the relaxation time of the slurry using a TDNMR device to evaluate the dispersity of specific components. The disclosure's method for manufacturing a battery slurry comprises evaluating the dispersity of the specific component.

The present invention relates to a method for producing a thick electrode film having a layer thickness of 100 μm or more and 600 μm or less for a secondary alkali ion energy storage device, the method comprising the steps of: a) preparing a dispersion comprising at least one solvent and solids, the dispersion having a total solids content of 40 wt. % or more and 80 wt. % or less, the solids comprising an active material, one or more conductive additives, and one or more binders, and mixing butanediol into the dispersion at a concentration of 2 wt. % or more and 10 wt. % or less, based on the total weight of the dispersion; b) coating the dispersion in a layer thickness of 200 μm or more and 1200 μm or less; and c) drying the coated dispersion to obtain an electrode film. The present invention also relates to the use of the method according to the present invention for producing an electrode film, and to an electrode film having a layer thickness of 100 μm or more and 600 μm or less, and having a specific composition.

Disclosed are a method for manufacturing a secondary battery pouch film having at least an outer layer, a metal layer, a primer layer, and a sealant layer, or at least an outer layer, a metal layer, a primer layer, a melt-extrusion resin layer, and a sealant layer in this order, the method including: a drying process of applying and heating a primer layer composition on the metal layer so as to dry the primer layer composition and cure at least a part of the primer layer composition. The organic solvent-based emulsion composition contains acid-modified polypropylene and a curing agent and has a curing start temperature of 150° C. or lower, preferably 135° C. to 150° C., and a drying process temperature of 150° C. or lower, preferably 135° C. to 150° C. The method is not subjected to a thermal lamination process when laminating sealant layer.

A cathode material of the present disclosure includes a cathode active material, a coating layer containing a first solid electrolyte, and coating at least part of a surface of the cathode active material, and a second solid electrolyte. The first solid electrolyte contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte to the total volume of the first solid electrolyte and the second solid electrolyte is greater than or equal to 5.1% and less than or equal to 12.0%.

Provided are a method for dry-manufacturing an electrode for an all-solid state battery, an electrode free standing membrane prepared through the manufacturing method, an electrode, and an all-solid state battery including the same. This dry process eliminates solvents, making it environmentally friendly and efficient. The method involves forming an electrode active material complex by mixing the active material with a solid electrolyte, combining it with a conductive material and binder, and then rolling the mixture into an electrode film. The film is bonded to a current collector, ensuring strong adhesion and mechanical stability. The free-standing membrane enhances ion and electron conductivity, improving overall battery performance. The resulting all-solid-state battery offers higher energy density, longer cycle life, and increased safety, making it well-suited for electric vehicles, portable electronics, and advanced energy storage applications.

The invention relates to the technical field of negative-electrode-free batteries, in particular to a negative-electrode-free composite all-solid-state battery and a preparation method thereof.The preparation method comprises the steps that a negative electrode current collector is modified, and target metal is adopted for modification so as to improve the lithium-loving characteristic or the sodium-loving characteristic; the first solid electrolyte layer is formed on the modified negative electrode current collector; the second solid electrolyte layer is coated on the first solid electrolyte layer; and the positive electrode material layer is formed on the second solid electrolyte layer through magnetron sputtering. In order to solve the problem of poor interface bonding between a negative current collector and a solid electrolyte of a negative-electrode-free solid-state battery in the prior art, in the embodiment, the negative current collector is modified so as to improve the lithium-loving / sodium-loving characteristic of the surface of the current collector, and then a compact first solid electrolyte layer is formed through magnetron sputtering, so that the lithium-loving / sodium-loving characteristic of the surface of the current collector is improved. Therefore, the heterogeneous materials can be tightly combined, and then the complete solid electrolyte is formed in a coating mode to avoid the interface problem, so that the yield of the battery is improved.

The present invention provides a method for preparing granules for an electrode for an all-solid-state battery comprising steps of (1) coating an electrically conductive material on an active material; and (2) spraying a binder on the coated active material to produce granules. Further, The present invention provides an all-solid-state battery using granules prepared thereby.

In one aspect, the present invention provides a primer layer composition that is excellent in initial peel strength, hydrofluoric acid resistance, electrolyte resistance, and the like, as well as in formability, and a secondary battery pouch film using the same. [Solution] A primer layer composition for a secondary battery pouch film, which is sandwiched between a metal layer and a melt-extruded resin layer or a sealant layer of a secondary battery pouch film, the primer layer composition being formed from an organic solvent-based emulsion composition, the organic solvent-based emulsion composition being a two-component curing type containing an acid-modified polypropylene and a curing agent, having a curing initiation temperature of 150°C or less, and being dried at 150°C or less.