259 results about "Electrode fabrication" patented technology

The present disclosure relates to an electrode for an electrochemical device, and more particularly, to a dry electrode and a method for manufacturing the same. According to an aspect of the present disclosure, there is provided a new method for manufacturing a dry electrode free of wrinkles in an uncoated portion having no electrode active material layer on a current collector.

The present invention relates to an electrode connection apparatus including a transfer unit configured to transfer a start portion of a standby electrode roll in a state of gripping the start portion, a leading unit configured to move upwards in a state of gripping the start portion of the standby electrode roll transferred by the transfer unit, a first connection unit configured to fix the standby electrode roll transferred by the leading unit, a second connection unit configured to fix an end portion of a moving electrode roll, and a taping unit configured to connect the standby electrode roll and the moving electrode roll to each other, whereby it is possible to automatically connect the electrode rolls to each other during an electrode manufacturing process performed as a roll-to-roll process.

The utility model provides film pressing equipment and an electrode manufacturing system. The film pressing equipment comprises a film forming roller, a fixed roller, a first calendering roller and a second calendering roller which are sequentially arranged according to a material feeding sequence, wherein the circumferential surfaces of the film forming roller, the fixed roller, the first calendering roller and the second calendering roller are all provided with wear-resistant layers, and the thicknesses of the wear-resistant layers are sequentially increased according to the material feeding sequence; the wear resistance of the surfaces of the compression rollers is enhanced, the wear degree of the surfaces of the compression rollers is reduced, the wear degree of the compression rollers can be relatively balanced, the service life of the compression rollers can be prolonged, and the film pressing equipment is ensured to run for a long time with stable performance.

The present invention pertains to a binder for a secondary battery positive electrode, to a method of preparation of said electrode and to its use in a secondary battery. The invention also relates to the secondary batteries manufactured by incorporating said electrode.

The adhesion between the current collector and the electrode layer is improved, while reducing resistance at the interface between the current collector and the electrode layer. [Solution] The current collector 100 of this disclosure comprises a substrate 101 and a coating layer 102. The coating layer 102 includes a conductive material 103 and a binder 104. The conductive material 103 includes a carbon material. In the Raman spectrum of the coating layer 102, the G / D ratio, which is the ratio of the peak intensity of the G band to the peak intensity of the D band, is greater than 0.80 and less than 3.09.

The present invention pertains to a binder for a secondary battery positive electrode, to a method of preparation of said electrode and to its use in a secondary battery. The invention also relates to the secondary batteries manufactured by incorporating said electrode.

According to one embodiment of the present invention, an electrode powder for manufacturing a dry electrode for a secondary battery is provided, wherein the powder comprises an active material, a conductive material, and a binder, and has a resistivity of 700 Ω·cm or less when pressurized at a pressure of 50 MPa, a method for manufacturing the same, a method for manufacturing a dry electrode using the same, a dry electrode, a secondary battery including the same, an energy storage device, and a dry electrode manufacturing device.

A dry electrode manufacturing apparatus according to an embodiment of the disclosure includes a supply unit including a discharge port opened at a lower portion thereof and a feeding roller installed below the discharge port, a chute unit providing the electrode powder discharged from the discharge port onto a traveling current collector, and a squeezer flattening the electrode powder provided on the current collector, wherein a density of the flattened electrode powder in a traveling direction of the current collector can be adjusted according to an amount of the electrode powder supplied from the chute unit onto the current collector.

A system and method for producing a porous electrode with a high level of porosity, preferably mesoporosity, without the use of a binder. The electrode is formed by depositing a layer on a substrate from a colloidal suspension containing aggregated or agglomerated nanoparticles. Deposition methods include electrophoresis, ink-jet printing, doctor blade, roll coating, curtain coating, or dip-coating. The process includes drying and may involve additional consolidation steps such as pressing and / or heat treatment to enhance structural integrity, electrical conductivity, and adhesion. The heat treatment induces partial coalescence of nanoparticles, creating a three-dimensional porous structure that facilitates ion mobility. A thin coating of an electrically insulating or ion-conductive material may be applied to reduce interfacial reactions. The resulting porous electrode may be used in energy storage applications, such as lithium-ion batteries. The invention also includes a method for manufacturing batteries utilizing these electrodes and related battery designs.

The application provides an Ag etching solution, a preparation method and application thereof. The Ag etching solution comprises the following components in a weight ratio: 40-80 parts of inorganic acid; 10-50 parts of organic acid; 0.05-1.5 parts of corrosion inhibitor; 0.1-2 parts of chelating agent; 1-7.5 parts of buffer; and 30-50 parts of ultrapure water. The application further discloses a preparation method of the Ag etching solution and application thereof in the field of etching ITO-Ag-ITO composite layers. The inorganic acid is selected from one or more of phosphoric acid, sulfuric acid, carbonic acid, boric acid, hydrobromic acid, iodic acid, hypoiodous acid, hydrofluoric acid and nitric acid. The inorganic acid is preferably phosphoric acid and nitric acid. The Ag etching solution has a stable etching rate for ITO-Ag-ITO, and is not damaged to the insulating layer and photoresist, and can be used in the OLED pixel electrode manufacturing process, and the Ag layer is not provided with burrs and is not shrunk after etching.

The present technology provides an electrode manufacturing apparatus including an unwinder around which an electrode sheet is wound, a rewinder configured to recover and wind the electrode sheet, a plurality of guide rolls configured to guide the electrode sheet to be moved between the unwinder and the rewinder, a rolling device provided between the unwinder and the rewinder, and including an upper rolling roll and a lower rolling roll that are configured to roll the electrode sheet, and a conveyor transfer device configured to move a connection sheet attached to one of two parts of the electrode sheet that are separated from each other, in which the conveyor transfer device is configured to move the connection sheet through a rolling gap between the upper rolling roll and the lower rolling roll.

A composite substrate includes a polymer layer extending in a first direction, and a first metal layer and a second metal layer on opposite sides of the polymer layer, respectively, the opposite sides of the polymer layer being spaced apart from each other in a second direction that is a thickness direction of the polymer layer, wherein each of the first metal layer and the second metal layer protrudes farther than an end of the polymer layer, and wherein a first protrusion protruding from the first metal layer and a second protrusion protruding from the second metal layer are joined to each other.

The invention relates to an electrode drying apparatus, an electrode manufacturing apparatus, and an electrode drying method. The electrode drying apparatus includes: a dryer configured to form a dried active material layer by applying thermal energy to dry a fluid active material layer of an electrode active material slurry coated on a substrate moving in a first direction; a densimeter configured to measure a density of the fluid active material layer and a density of the dry active material layer; and a controller configured to control the dryer such that a magnitude of the thermal energy is adjusted based on a density change, which is a difference between the density of the fluid active material layer measured by the densitometer and the density of the dried active material layer.

A dry electrode manufacturing apparatus includes an input portion configured to supply electrode powder, a guide chute configured to pass the electrode powder supplied from the input portion, a dispersion rod disposed inside the guide chute and configured to undergo at least one of a linear motion or a rotational motion to disperse the electrode powder and adjust a particle-size distribution, a drive unit configured to provide power to the dispersion rod, and compression rolls configured to compress the electrode powder discharged from the guide chute into an electrode member in a sheet form having a desired thickness.

The present invention relates to a method for producing a method for manufacturing a semiconductor device comprising the steps of: (a) Formula Li 1+x TM 1-x providing a particulate lithiated transition metal oxide of O2, where x is in the range of 0 to 0.1, and Tm contains nickel and at least one of Co, Mn, and Al; (b) combining the lithiated transition metal oxide from step (a) with a conductive form of carbon; (c) exposing the mixture obtained in step (b) to a pressure in the range of 100 to 500 MPa for a period of 1 second to 1 minute, thereby causing cracks in at least a portion of the particles of the electrode active material; (d) mixing the mixture from step (c) with a binder polymer, optionally with additional conductive forms of carbon, and a solvent; (e) applying the mixture from step (d) to a metal foil; The present invention relates to a method for manufacturing an electrode, including:

An electrode manufacturing apparatus according to one embodiment of the present invention includes a slit roll containing a knife for cutting electrodes, and at least one bracket located downstream in the electrode movement direction at a predetermined distance from the slit roll and facing the electrode, which includes a plurality of micro-holes for removing foreign matter resulting from cutting the electrode by the slit roll through the micro-holes.

The invention relates to a method for producing an electrode (10) for a lithium-ion cell, wherein the electrode (10) comprises a substrate film (12) and a paste (14) applied to the substrate film (12), the method comprising the following steps: (a) providing the paste (14) comprising a photoinitiator or providing a polymer (16) comprising a photoinitiator; (b) applying the paste (14) to the substrate film (12) or applying the polymer (16) prior to applying the paste (14) to the substrate film (12); and (c) irradiating a border-enclosing sub-region (TB) of the applied paste (14) with a polymerization light or irradiating the polymer (16) prior to applying the paste (14) with a polymerization light.

The invention discloses a method for preparing a porous titanium-based material with low mass transfer resistance by using magnetic field induction, and relates to the technical field of electrode manufacturing, and the method comprises the following steps: preparing titanium powder slurry containing magnetic components and titanium powder slurry without magnetic components, and preparing a double-layer or multi-layer composite structure from different slurries; directionally arranging the magnetic components by using a magnetic field; the sintering treatment enables the magnetic components to be decomposed or sintered to generate a directionally-arranged supporting structure, and the directionally-arranged supporting structure is obtained; and continuously sintering at the temperature higher than the first temperature interval, and pickling to remove the directionally arranged support structure to obtain the porous titanium-based material with the dual-scale pore structure, the problems that in the prior art, mass transfer efficiency is low, mass transfer resistance is large, a directional through pore structure is difficult to achieve, cooperative construction of pores with different pore diameters is difficult, the functionality of the pores is single, and the pores are prone to being polluted are solved.

An electrode manufacturing device includes a transfer part configured to move an electrode coated with an active material, a rolling part configured to roll the electrode, a marking part in front of the rolling part, the marking part configured to make a plurality of mark portions on the electrode, a measurement part configured to measure distances between the mark portions before rolling the electrode and after rolling the electrode, and a control part configured to calculate an extent of elongation by comparing measurement results of the measurement part.

An object of the present invention is to provide a composition for forming a carbon electrode capable of producing a carbon electrode suitable for production of a perovskite solar cell having more excellent photoelectric conversion efficiency, a carbon electrode capable of producing a perovskite solar cell having more excellent photoelectric conversion efficiency and a method for producing the same, a photoelectric conversion element having more excellent photoelectric conversion efficiency, a perovskite solar cell, and a method for producing a perovskite solar cell.SOLUTION: The content of the tin oxide particles is 3 to 24 mass% with respect to the content of the carbonaceous material, and the average particle size of the tin oxide particles is 2 to 200nm.SELECTED DRAWING: Figure 1

The present invention relates to an electrode manufacturing apparatus including an unwinding part for continuously supplying an electrode current collector wound in the form of a roll, a plasma treatment unit for performing plasma treatment on the surface of the wound electrode current collector, an active material application unit in which an active material layer is disposed by applying an active material slurry to the surface of the electrode current collector, a drying unit for drying an active material layer disposed on the surface of the electrode current collector, and a winding unit for winding the electrode current collector on which the active material layer is dried into the form of a roll, wherein the plasma treatment unit includes a guide roller that applies tension to the electrode current collector and at least one plasma generator inside the guide roller, wherein the plasma generator performs surface treatment by spraying a gas in a plasma state onto the surface of the electrode current collector in contact with the guide roller.

The invention provides an electrolyzer system and a method of electrode manufacturing. The electrolyzer system may include a first vessel in communication with the electrolyzer stack, a power source, an electrode, a separator, a membrane, and a second vessel in communication with the electrolyzer stack. The electrode may include a catalytic material and a microporous and / or nanopore structure. A method of electrode fabrication may include providing a substrate, contacting the substrate with an acidic solution, applying an electrical current to the substrate while depositing a primary material and a support material comprising a sacrificial material onto the substrate, and leaching the sacrificial material.

The application provides a dry-process electrode tab film and a preparation method thereof, and belongs to the technical field of dry-process electrode manufacturing. The dry-process electrode tab film comprises active material particles, conductive agent particles and an adhesive, the adhesive is in a fibrous form, the active material particles comprise large-diameter active material particles and small-diameter active material particles, wherein the particle size D50 of the large-diameter active material particles is 4-10 mu m, the particle size D50 of the small-diameter active material particles is 0.9-1.8 mu m, and the small-diameter active material particles are arranged in an area close to and adhered to the adhesive along the extension direction of the adhesive. The dry-process electrode tab film can have good film-forming property and high compaction density.

The invention relates to a positive electrode slurry composition, a positive electrode, a method of manufacturing a positive electrode, and a rechargeable lithium battery. The positive electrode slurry composition includes a positive electrode active material including secondary particles of a lithium nickel-based composite oxide, carbon nanotubes, and a cellulose-based additive.

A charged particle-optical element comprising a first electrode and a second electrode, each having a plurality of apertures configured and arranged for passing individual beamlets of a beam grid array through the charged particle-optical element, wherein the first electrode has a first electrode surface having a first curved region in which the plurality of apertures is formed, the first curved region being curved in two dimensions; the second electrode has a second electrode surface having a second curved region in which the plurality of apertures is formed, the second curved region being curved in two dimensions; the first curved region and second curved region face each other to form a gap having a substantially constant width; and the second electrode has a third electrode surface on the opposite side to the second electrode surface and the third electrode surface is substantially planar.

The technical idea of the present invention provides an electrode manufacturing method comprising: a notching step of notching an electrode sheet; a slitting step of slitting the electrode sheet; and a cutting step of cutting the electrode sheet.

The present disclosure discloses a manufacturing method of display panel and a display panel. The method includes: providing a drive substrate, the drive substrate including a plurality of drive electrodes, manufacturing an elastic layer and an adhesive layer formed that are stacked between the two drive electrodes separated by a predetermined distance; transferring light emitting units to the adhesive layer, and controlling light emitting electrodes of the light emitting units to be connected to the drive electrodes; determining the light emitting units to emit light normally when the light emitting units are controlled to emit light through the drive substrate; forming a bonding layer by filling bonding material between the light emitting electrodes of the light emitting units and the drive substrate, and the bonding layer surrounding the light emitting electrodes and the drive electrodes for increasing connection strength of the light emitting electrodes and the drive electrodes.

The present invention relates to an electrode manufacturing apparatus and, more particularly, to an electrode manufacturing apparatus for manufacturing an electrode for a secondary battery by a dry-process method. The electrode manufacturing apparatus according to an embodiment of the present invention comprises: a flattening unit for flattening mixture powder supplied onto the surface of a current collector by applying vibration thereto; and a main roller for pressing the flattened mixture powder and the current collector to compress the flattened mixture powder onto the current collector.

An electrode manufacturing system according to an exemplary embodiment of the present disclosure includes: a coating part comprising a first coating part for applying an electrode slurry to a first surface of a current collector and a second coating part for applying an electrode slurry to a second surface of the current collector; an air spraying part; and a drying part, wherein the air spraying part is disposed on a transfer path between the second coating part and the drying part. By moving an electrode slurry in the direction of an uncoated part by spraying air at a fat-edge of a second electrode active material layer caused by a sliding region of a first electrode active material layer formed on the first surface of the current collector, the formation of the fat-edge can be prevented.

The application discloses a preparation method of a marine conductivity sensor electrode and the electrode, and relates to the field of sensing electrode manufacturing. The preparation method of the marine conductivity sensor electrode comprises polymer substrate carbonization treatment and carbonized substrate graphitization treatment. The preparation method of the marine conductivity sensor electrode realizes dense forming of the polymer substrate and ordered gradient conversion of the carbon structure, and is free of a mask and chemical reagent residues. The prepared electrode has high density, excellent conductive stability, outstanding seawater corrosion resistance, controllable size precision and weak polarization effect, and is suitable for the miniaturization, long-termization and high-precision marine conductivity monitoring requirements.