24 results about "Coated electrodes" patented technology

Some embodiments of the electrode drying degree measuring device are configured to measure the degree of drying of the center and side portions of the active material layer dried by the top surface drying device, which is positioned behind the top surface drying device, with reference to the machine direction (MD) of the current collector, with reference to the machine direction of the current collector. Some embodiments of the present invention enable the quantification of the degree of drying of the active material layer of the top surface coated electrode and to derive a correlation between the process variables of the top surface coating device and the top surface drying device and the degree of drying of the active material layer of the top surface coated electrode. Some embodiments of the present invention enable a rapid response when the drying of the active material layer of the top surface coated electrode is not properly performed and can prevent contamination of rollers located in front of the top surface drying device with reference to the machine direction of the current collector and / or rollers facing the back surface coating device.

The application provides a cold coke water treatment process and system. The cold coke water treatment process comprises the following steps: step one: after being collected by a coke storage pool, the cold coke water is filtered by a flat ceramic membrane to obtain concentrated coke water and dilute coke water, and the concentrated coke water is returned to the coke storage pool; step two: after being stored by a cold coke water tank, the dilute coke water is divided into dilute coke water I and dilute coke water II, the dilute coke water I is sequentially treated by a first-stage electro-catalytic oxidation unit, a second-stage electro-catalytic oxidation unit and a reverse osmosis unit to obtain purified water; and the dilute coke water II is used as cold coke water makeup water and recycled; the first-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a titanium-based metal oxide coating electrode; the second-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a boron-doped diamond electrode. The treatment process has good treatment effect and is environmentally friendly and economical.

The present invention relates to the electrochemical detection of an analyte by capacitance spectroscopy using a redox active polymer-coated electrode such as a polyaniline-coated electrode.

An electrochemical method for detecting hydrogen peroxide includes providing an electrochemical sensor comprising: a container holding an electrolyte; a coated electrode positioned in the container; and a counter electrode spaced apart from the coated electrode in the container, where the coated electrode includes a conductive substrate and a coating comprising a topological insulator on the conductive substrate. A voltage is applied to the coated electrode and the counter electrode, and a biological specimen is added to the electrolyte to form an analyte solution. Current density is measured. An increase in the current density upon forming the analyte solution indicates presence of hydrogen peroxide in the biological specimen.

This invention relates to a non-fluorinated binder for lithium-ion battery cathodes, its preparation method, and its application, belonging to the field of cathode adhesive technology. The technical problem solved by this invention is to provide a non-fluorinated binder for lithium-ion battery cathodes. This binder comprises a resin binder, which is made from raw materials comprising the following parts by weight: 100 parts polybutadiene resin, 2-30 parts modified monomers, and 2-30 parts crosslinking agent. The non-fluorinated binder for lithium-ion battery cathodes of this invention contains no fluorine, exhibits stable performance, and has excellent electrolyte resistance, mitigating delamination or poor adhesion caused by coating volume expansion during charge-discharge cycles. It features high dispersion, high solids content, and high adhesion, meeting the requirements of thick-coated electrodes and high-compaction processes. It can reduce binder usage, improve product kinetic performance, and has a high electrochemical stability window. Electrodes prepared using the binder of this invention exhibit good flexibility.

The utility model provides an electrode plate water removal device. The electrode plate water removal device comprises: an unwinding part; a winding part; a first water removal assembly arranged between the unwinding part and the winding part, the first water removal assembly being used for baking the coated electrode plate; a roller pressing part arranged between the unwinding part and the winding part and located downstream of the first water removal assembly; and a second water removal assembly located between the roller pressing part and the winding part, the second water removal assembly being arranged at a discharge end of the roller pressing part, the second water removal assembly being used for secondary baking of the electrode plate pressed by the roller pressing part. The electrode plate water removal device of the technical scheme of the utility model can solve the problem of poor water removal effect of the existing water removal equipment for removing water from the electrode plate, long vacuum baking time before liquid injection, and prolonged battery production cycle.

The utility model discloses a PTC heating single pipe, including heating sheet, plastic coated electrode sheet, first electrode sheet, insulating ceramic sheet, insulating film and aluminium pipe, plastic coated electrode sheet is by insulating frame body and second electrode sheet is composed, and second electrode sheet sets up in the outside of insulating frame body and is connected as an organic whole with insulating frame body, still equal interval is provided with a plurality of baffle in insulating frame body, and each baffle divides insulating frame body into a plurality of installation chamber, and heating sheet is by a plurality of split main part and is composed, and each main part is inserted in each installation chamber, and one face of each main part is respectively with second electrode sheet abuts, and first electrode sheet closes the other side of insulating frame body and is with another face of each main part abuts, and insulating ceramic sheet has two, and two insulating ceramic sheets are respectively arranged in the outside of first electrode sheet and second electrode sheet, and insulating film is covered in the outside of two insulating ceramic sheets and insulating frame body, and aluminium pipe sleeve is placed in the outside of insulating film, the utility model discloses simple assembly, and when working, it is difficult to produce abnormal sound.

Method of forming a multilayered coating on an electrode, preferably anode, metal foil, comprising the steps of, (i) Providing a primer composition (a) and an active electrode composition (b); (ii) Simultaneously or substantially simultaneously applying the primer composition (a) and the active electrode composition (b) onto the electrode metal foil, wherein the primer composition (a) forms a primer layer (A) directly on the surface of the electrode metal foil and the active electrode composition (b) forms an active electrode layer (B) directly on the surface of the primer layer (A) to form the multilayered coating on the electrode metal foil; and (iii) drying the multilayered coating, wherein the primer composition (a) comprises, (I) at least one electro-conducting component comprising particulate carbon, (II) at least one binder component, (III) at least one co-binder component different from binder component (II), the co-binder being at least one polysaccharide or modified polysaccharide, and (IV) a dispersant component, wherein the dispersant component (IV) comprises a polymer of N-vinylpyrrolidone, the polymer of N-vinylpyrrolidone being (i) a homopolymer of N-vinylpyrrolidone which exhibits a K value in the range from 10 to 70; or (ii) a random copolymer of N- vinylpyrrolidone and at least one copolymerisable ethylenically unsaturated monomer which exhibits a K value in the range from 10 to 70. The invention also concerns a multilayered coated electrode, preferably anode, metal foil, comprising a primer layer (A) located directly on the surface of the electrode metal foil and an active electrode layer (B) which is located directly on the surface of the primer layer (A), the multilayered coated electrode metal foil being obtainable by the aforesaid method. The invention also includes the use of said polymer in the method.

This invention discloses a processing technology and electrode sheet for improving the interlayer peel strength of energy storage cell electrodes. The processing technology includes the following steps: preparing a coating slurry by multi-stage dispersion treatment of a slurry; performing surface activation treatment on a current collector to form a rough surface; coating the current collector with the coating slurry to form a coating layer, wherein the binder concentration in the coating layer is distributed in a concentration gradient, with the binder concentration on the side closer to the current collector being higher than that on the side farther from the current collector; performing multi-stage drying treatment on the coated electrode sheet; applying an interface reinforcing agent to the surface of the dried electrode sheet and performing pressure heat treatment to allow the interface reinforcing agent to act on the interface region between the coating layer and the current collector; and performing calendering treatment on the electrode sheet after interface reinforcement treatment. This invention significantly improves the electrode sheet peel strength through the synergistic design of each process, improves the mechanical stability and cycle performance of the battery, and effectively solves the technical problem of insufficient interlayer peel strength of the electrode sheet.

This utility model discloses a flexible electrode sheet surface coating device, including a housing and an unwinding roller mounted on the top left side of the housing and a rewinding roller mounted on the bottom. A horizontal partition is fixedly connected inside the housing, and vertical partitions are fixedly connected to the top and bottom of the horizontal partition. Two sets of guide rollers arranged at equal distances are rotatably installed inside the housing, located at the top and bottom of the horizontal partition, respectively. This utility model allows the coated electrode sheet to pass through the vertical partition, through the drying area of ​​the electrothermal drying unit, be dried, and then output. It then passes down through the two guide rollers on the right side and re-enters the housing. Next, another coating roller coats the other side of the electrode sheet. After coating, it passes through the drying area of ​​the electrothermal drying unit below the horizontal partition for further drying. This achieves the advantages of continuous, separate double-sided coating with independent drying on both sides, and continuous, integrated double-sided coating operation, resulting in higher efficiency.

Method for producing a coated electrode wire for use in electrical discharge machining, comprising: Providing a central wire having a first diameter and formed from a first copper-containing metal, Hot-dip coating of the central wire for a desired time and at a desired temperature through a melt bath containing a second metal having an evaporation temperature lower than that of the first metal, wherein an alloy layer is formed on the central wire by means of a diffusion reaction between the first metal and the second metal, which has greater hardness and lower elongation than the first metal and the second metal, and wherein a coating layer is formed on the alloy layer, and Drawing the central wire, which has the alloy layer and the coating layer, so that a coated electrode wire with a second diameter is formed, whereby cracks are formed during the drawing step due to the high hardness and low elongation in the alloy layer and in the coating layer, characterized in that the resulting alloy layer and the resulting coating layer are porous with a sponge-like structure.

The electrode manufacturing apparatus of the present invention includes a travel roller for conveying a coated electrode, and a die member disposed on a travel path of the coated electrode and arranged to cut a partial area of the coated electrode, wherein the die member includes an upper die disposed on a top of the coated electrode, and a lower die disposed on a bottom of the coated electrode, the upper die including an upper forming jig arranged to cut the partial area of the coated electrode, and one or more first counterbalancing members connected to the upper forming jig, the upper forming jig being disposed such that a center thereof is offset from a center in a direction of a rotational axis of the travel roller.

The application provides a method for detecting the redox capacity of a non-homogeneous aqueous medium under different potential conditions, and belongs to the technical field of electrochemical analysis. The method system uses a reticular titanium-based ruthenium iridium oxide coating electrode as a working electrode, improves the upper limit of the sample addition amount of the existing mediated electrochemical analysis system from the mg level to the g level, solves the representativeness problem of the sample in the test of the non-homogeneous aqueous medium, and improves the precision of the redox capacity analysis from mmol e ‑ / kg to μmol e ‑ / kg. By regulating the applied voltage of the working electrode and adding different electronic mediator substances, the test of the redox capacity of the non-homogeneous aqueous medium under different potential conditions can be realized. The method has high sensitivity and good accuracy, in addition, the titanium-based ruthenium iridium oxide coating electrode has strong corrosion resistance, low cost, is convenient to process, and is simple to maintain, and has a good practical application prospect.

The utility model discloses a kind of coating electrode electrical connection device and electric heating panel.The device is detachably connected with electric heating panel by shell, first electrical connection piece and second electrical connection piece are respectively extended out of shell for external plug positive and negative pole insertion.The first deformation piece connects the first electrical connection piece with the first insertion piece, and the second deformation piece connects the second electrical connection piece with the second insertion piece.Two deformation pieces respectively and the positive and negative electrode coating of electric heating panel are elastically abutted and connected, realize lossless installation.Insertion piece can extend out of shell to form parallel insertion interface, support adjacent panel electrical connection;Deformation piece adopts spring leaf with elastic protrusion or wave spring leaf structure, to ensure contact reliability.Electric heating panel with supporting contains graphene heating layer and positive and negative electrode coating, shell is provided with suspension groove to cooperate wall surface nail to realize quick installation.The scheme solves the problem that traditional electrode connection needs prefabricated thread hole, is easy to damage coating, contact unstable, has the advantages of convenient disassembly and assembly, contact reliable, flexible expansion.

One example of the present invention relates to a swing laser processing apparatus including a laser oscillator arranged to oscillate a laser, and a swing laser irradiator arranged to irradiate a coated electrode during travel with the laser oscillated from the laser oscillator in a swing pattern to process a partial area of the coated electrode, wherein at least one of a swing width, a swing height, and a swing frequency is adjustable based on a travel speed of the coated electrode.

This utility model relates to the technical field of electrode manufacturing, and in particular to a dust removal device for electrode sheets after coating and drying. It includes: a coating-side dust removal module, disposed on the coating side of the electrode sheet and comprising a first separation component and a first vacuum adsorption component. The first separation component separates surface dust on the coating side of the electrode sheet, and the first vacuum adsorption component adsorbs the separated surface dust. A substrate-side dust removal module, disposed on the coating side of the electrode sheet and comprising an ultrasonic generator, a second separation component, and a second vacuum adsorption component. The ultrasonic generator generates high-intensity, high-frequency ultrasonic waves to the substrate-side surface of the electrode sheet. The second separation component separates surface dust on the substrate-side surface of the electrode sheet, and the second vacuum adsorption component adsorbs the separated surface dust. This application effectively solves the problem of material differences on both sides of a single-sided coated electrode sheet, improving the dust removal efficiency on both sides of the electrode sheet to ensure surface cleanliness.

This invention discloses an automatic silver paste cleaning device for display screen production, comprising: a work plate for mounting two active cleaning components; a servo stage for transporting substrates; and two sets of active cleaning components, each located on the outer wall of the work plate. Each active cleaning component includes a cleaning cylinder, a semi-sealed shell, a spray shell, an adjusting motor, a cleaning sleeve, a cleaning roller, and a silver paste cleaning component. In this invention, the active cleaning device enables rapid cleaning of substandard silver paste on the substrate, allowing for a second silver paste coating process, thus improving equipment efficiency. The silver paste cleaning component ensures stable unblocking of the coating conduit, avoiding manual intervention and reducing equipment efficiency. It also ensures rapid cleaning of substandard silver paste on the substrate, and the moistened cleaning sleeve prevents scratching the substrate, improving the cleanliness and conductivity of the coated electrodes.

A method comprises coprecipitating one or more precursor compounds from a precursor solution comprising one or more first metal salts and one or more second metal salts to produce precipitated precursor particles, forming a slurry of the precipitated precursor particles, applying the slurry to one or more surfaces of a conductive substrate to provide a slurry coated substrate, and baking the slurry coated substrate at specified calcination conductions to convert the one or more precursor compounds of the precipitated precursor particles to spinel particles that are adhered to the one or more surfaces of the conductive substrate, wherein the spinel particles comprise a spinel with the general chemical formula AB2O4.

A wearable comprising (1) a flexible battery that includes coated electrode segments that each contain positively charged and negatively charged layers, (2) an exoskeleton coupled to the flexible battery and fitted to contour the coated electrode segments, and (3) a band that forms a cavity shaped to fit the flexible battery and the exoskeleton. Various other apparatuses, devices, systems, and methods are also disclosed.

Provided is a method for manufacturing an electrode that allows for a good state of adhesion between a protective layer and an electrode mixture layer and that allows for a reduction in the thickness of the protective layer. The present disclosure is a method for manufacturing an electrode that has an electrode mixture layer and a protective layer adjacent to the electrode mixture layer on a current collector. The manufacturing method includes a coating step of coating an electrode mixture paste and a paste for forming a protective layer on a current collector using a die having a spacer, and a drying step of drying the coated electrode mixture paste and the paste for forming a protective layer. The paste for forming a protective layer is die-coated simultaneously with the electrode mixture paste in a manner so as to be adjacent to the electrode mixture paste. The spacer has a discharge port for discharging the electrode mixture paste and a discharge port for discharging the paste for forming a protective layer. The ratio (B / A) of the opening width B of the discharge port for discharging the paste for forming a protective layer to the coating width A of the paste for forming a protective layer is 1.00 to 1.07.

The application relates to a coating method and a coating system. The method comprises the following steps: obtaining first online thickness data of a pole piece material belt; determining the position and size of a first film area of a first surface in the pole piece material belt according to the change of the first online thickness data; the first film area is any one of film areas distributed in gaps along the belt running direction of the pole piece material belt on the first surface; determining the position and size of coating a second surface in the pole piece material belt according to the position and size of the first film area; the second surface is a surface opposite to the first surface in the pole piece material belt; and coating a second film area opposite to the first film area on the second surface according to the position and size of coating the second surface. The method can improve the finished product yield of the coated electrode material.

The present application discloses a kind of coating of electrode, electrode and its preparation method and application, coating includes by weight parts: 8.0-14.0 rutile, 6.0-8.0 marble, 1.5-3.5 fluoride, 1.5-3.0 mica, 5.0-9.0 potassium feldspar, 0.8-1.6 electrolytic manganese, 0.4-1.0 ferro titanium, 2.0-4.0 metal chromium, 1.0-3.0 metal nickel, 0.1-0.6 iron sand, 0.1-0.4 calcium sulfide and 0.4-0.6 soda ash;Coating and welding core constitute electrode, electrode is applied to austenite-ferrite dissimilar steel surfacing, and the plasticity and toughness of deposited metal after surfacing forming are good, and corrosion resistance is excellent, satisfy the surfacing requirement of petroleum, chemical, hydraulic and nuclear power equipment.

The present application belongs to the technical field of lithium batteries. Disclosed are an electrode slurry, an electrode and a preparation method therefor, and a battery. The electrode slurry of the present application comprises an active material, a binder and a conductive agent; and a fibrous polymer material is further added, and the thermal decomposition temperature T of the fibrous high polymer material, the baking temperature T1 of a coated electrode sheet before calendaring and the baking temperature T2 of the electrode sheet after calendaring meet the relational expression: T1<T≤T2.