28 results about "Polymer electrode" patented technology

The invention provides an electro-optical modulator and a modulation method thereof, the electro-optical modulator comprises a substrate, a buried oxide layer and a lithium niobate waveguide layer are sequentially stacked on the substrate, and the lithium niobate waveguide layer comprises a first optical waveguide and a second optical waveguide; the electrode layer comprises a composite traveling wave electrode and a direct-current electrode, and the direct-current electrode is arranged on one side, in the signal transmission direction, of the composite traveling wave electrode; wherein the composite traveling wave electrode comprises a metal electrode and a polymer electrode, the metal electrode is embedded into the buried oxide layer, the polymer electrode is arranged on the surface of the buried oxide layer, and the composite traveling wave electrode is arranged between the first optical waveguide and the second optical waveguide and arranged on the side faces of the first optical waveguide and the second optical waveguide respectively; wherein the direct current electrode is arranged between the first optical waveguide and the second optical waveguide. The electro-optical modulator is high in electro-optical conversion efficiency, the plasma effect caused by light field coupling is effectively avoided, and the light loss of the device is remarkably reduced.

This invention contains 10 mol% to 50 mol% of the first structural unit (-CH2CR). 1 (CONR) 2 R 3 ) -), 25 mol% to 80 mol% of the second structural unit (-CH2CR) 4 (COOX)-), and 1.0 mol% to 45 mol% of the third structural unit (-CH2CR) 5 (C≡N)-), and the weight-average molecular weight is over 1.5 million.

Provided in the present application are a polymer, an electrode sheet, and a related battery cell, a battery and an electric apparatus. The polymer comprises an ester polymer, and is applied to a battery cell. The polymer comprises the ester polymer, wherein the ester polymer is made into a sheet-shaped structure, which is subjected to a dynamic frequency scanning test at the temperature of (Tm+20)°C to obtain an elastic modulus G'-loss modulus G" curve, the slope of the elastic modulus G'-loss modulus G" curve being K, 1 < K < ∞, and Tm ° C representing the melting temperature of the ester polymer. The present application can improve the cycle performance and storage performance of a battery cell.

The invention discloses an all-organic battery based on a redox covalent organic polymer as well as a preparation method and application of the all-organic battery. The structure of the two-dimensional covalent organic polymer positive / negative electrode material is rationally designed, so that high output voltage, specific capacity and energy density are expected to be realized at the same time. The electrode provided by the invention adopts an amorphous cross-linked polymer as an active material. Compared with a crystalline inorganic electrode material or a micromolecular organic electrode material, the amorphous structure can provide sufficient internal free volume, and is beneficial to efficient storage and rapid migration of charged ions. Meanwhile, the structure promotes the full contact between the electrode and the electrolyte and effectively reduces the interface impedance, so that the overall electrochemical performance is remarkably improved. The whole preparation process does not involve the use of metal, and the steps are simple; the prepared polymer electrode not only has a uniformly distributed structure, but also has good hydrophilic performance, can be suitable for various application scenes, and has wide development prospects.

The invention discloses a two-step water electrolysis hydrogen production device based on a three-electrode system and a hydrogen production method, and belongs to the technical field of water electrolysis, the two-step water electrolysis hydrogen production device comprises an oxygen evolution catalytic electrode, a hydrogen evolution catalytic electrode and a quinone polymer electrode HMND, the HMND is reduced in an acidic electrolyte to form a negatively charged intermediate, and the negatively charged intermediate and hydrogen ions are subjected to a coordination reaction to form HMND-2H; hydrogen ions are subjected to electrochemical reduction at the cathode oxygen evolution catalytic electrode to generate hydrogen, the HMND-2H electrode is subjected to electrochemical oxidation to form an HMND electrode, and electrons flow to the hydrogen evolution catalytic electrode from the HMND-2H electrode through an external circuit; the HMND electrode is electrochemically reduced into an HMND-2H electrode, water molecules are electrochemically oxidized into oxygen on the surface of the oxygen evolution catalytic electrode, and electrons flow to the HMND electrode from the oxygen evolution catalytic electrode through an external circuit; the hydrogen production process and the oxygen production process of the acidic electrolyzed water are carried out step by step, a diaphragm is not needed, and the method is low in toxicity, low in cost and environment-friendly.

The utility model relates to a sensor for detecting the amount of free electrolyte in a lithium battery in situ and the lithium battery. The sensor comprises an insulating shell, a conductive polymer electrode and two wires, the conductive polymer electrode is disposed on the insulating housing. One ends of the two wires are embedded in the insulating shell in a sealed mode and are electrically connected with different positions of the conductive polymer electrode respectively, and the other ends of the two wires are located outside the insulating shell. When the sensor provided by the utility model is used for detecting the amount of free electrolyte in the lithium battery in situ, the sensor is firstly implanted into the lithium battery, electrochemical balance can be established between the conductive polymer electrode and the electrolyte, and the charge distribution and the electrode potential on the surface of the conductive polymer electrode can be changed due to different concentrations of lithium salts; the change curve of the current of the conductive polymer electrode along with the potential is recorded in real time through the electrochemical workstation, and the loss condition of the solvent in the electrolyte is indirectly judged through the potential of the conductive polymer electrode and the change of the response current intensity.

This application provides a polymer, an electrode plate, and a battery cell, battery, and electric apparatus related thereto. The polymer includes an ether polymer. The ether polymer is made into a sheet structure. The sheet structure undergoes dynamic frequency scanning testing at (Tm+20)°C to obtain an elastic modulus G'-energy loss modulus G" curve, where a slope of the elastic modulus G'-energy loss modulus G" curve is K, 1<K<∞, and Tm°C represents a melting temperature of the ether polymer. This application can improve the cycling performance and storage performance of the battery cell.

The present invention relates to a composition for forming an electrode comprising a tetrafluoroethylene (TFE) (co) polymer having a specific surface area of 4 m2 / g or less, preferably 2 m2 / g or less, as measured according to method ISO 9277, at least one electroactive material, optionally at least one solid ionically conductive inorganic material, and optionally at least one processing aid; to a separator-forming composition comprising the TFE (co) polymer, at least one solid ionically conductive inorganic material, and optionally at least one processing aid; relates to a method for manufacturing an electrode or a separator by using the composition, and to an electrode or a separator obtainable by the method. The invention also relates to a method for manufacturing a gel polymer electrode; to a gel polymer electrode obtainable by this method; relates to a TFE (co) polymer, to a secondary battery comprising an electrode, a separator or a gel polymer electrode according to the invention, and to the use of the TFE (co) polymer in a binder composition for a secondary battery.

Provided in the present application are a polymer, an electrode sheet, and a battery cell, a battery and an electric device related thereto. The polymer comprises a fluoropolymer, wherein the degree of crystallinity of the fluoropolymer, which is measured by means of a differential scanning calorimetry, is XC%, where 0 < XC ≤ 30; and the melting temperature of the fluoropolymer is Tm, the unit thereof being °C, where 0 < Tm ≤ 140. The polymer of the present application has a relatively low degree of crystallinity and a relatively low melting temperature, such that the molecular chain arrangement tends to be loose, an acting force among molecular chains is relatively small, the chain segment flexibility of the polymer can be exerted, and the molecular chains, which are adjacent, are easy to unlink. When the polymer is applied to a battery cell, the cycling performance and storage performance of the battery cell can be improved.

The present application provides a polymer, an electrode plate and an associated battery cell, battery and electrical device. The polymer includes an aldehyde ketone polymer. The aldehyde ketone polymer has a slope K of an elastic modulus G'-loss modulus G" curve that is measured by subjecting a sheet-like structure formed of the aldehyde ketone polymer to dynamic frequency scanning tests at (Tm+20)°C, and 0.8≤K<∞, where Tm°C represents the melting temperature of the aldehyde ketone polymer. This application can improve the cycling performance and storage performance of the battery cell.

A method for forming an Ag / AgCl coated electrode includes providing a polymeric electrode substrate made of Acrylonitrile Butadiene Styrene (ABS). A layer of silver (Ag) is deposited on the polymeric electrode substrate using physical vapor deposition (PVD) to form an Ag coated electrode. The layer of Ag is deposited to a first thickness by sputtering an Ag target onto the polymeric electrode substrate. The Ag coated electrode is then converted to a layer of silver / silver chloride (Ag / AgCl) by dipping it into a conversion solution. The resulting Ag / AgCl coated surface electrode provides improved performance and stability for various applications.

The present invention belongs to the field of sodium-ion battery materials, specifically relating to a post-synthesis-modified COFs material with sodium-ion battery performance and its preparation method. The material structure is characterized by the synthesis of monomers containing more highly active functional groups, the exposed active sites and pore structure due to its characteristic nanosheet structure, and the formation of some highly active C=S functional groups resulting from sulfur modification. The preparation method is characterized by adding rGO nanosheets during the COFs synthesis process to prepare a two-dimensional COFs and rGO composite material, which is then subjected to sulfurization modification to obtain a post-synthesis-modified COFs material with sodium-ion battery performance. Compared to traditional synthesis processes, this method more easily forms two-dimensional COFs nanosheets with superior electrochemical properties. The post-synthesis modification process does not damage the original COFs skeleton structure, effectively maintaining its porous structure. This method can be well applied to the functionalization of porous structures, opening up new avenues for the development of polymer electrode materials.

This application provides an ester polymer, an electrode plate, and a related battery cell, battery, and electric apparatus. The ester polymer is added with a first solvent at 45°C to form an ester polymer system; the ester polymer system is left standing at 45°C for 8 h and at 25°C for ≥24 h, and then the ester polymer system is filtered through a 200-mesh filter screen to leave a first material, where a mass of the ester polymer is n, in g; a mass of the first material is m, in g; and the ester polymer and the first material meet 5≤m / n≤1000. When the ester polymer is applied in a battery cell, the cycling performance of the battery cell can be improved.

The invention discloses a hexaaza-naphthyl polymer, a preparation method thereof and an air self-charging seawater-based battery. The structure of the polymer electrode is shown as a formula I. According to the polymer electrode, the sulfonyl-connected hexaaza-naphthyl polymer is adopted as an active material of the electrode, a large amount of space is provided, and meanwhile the polymer electrode has good structural designability. On one hand, various cations in seawater can be better accommodated, and on the other hand, the electrolyte and the electrode material can be further fully contacted, so that the resistance between phase interfaces is reduced, and the electrochemical performance is improved. The preparation method of the sulfonyl-connected hexaaza-naphthyl polymer electrode is simple and simple in process, and the whole preparation process does not involve the use of metal. The Zn / / SHATN total battery disclosed by the invention shows excellent rate capability and excellent capacity retention ratio, shows excellent self-charging performance in a seawater-based zinc salt electrolyte, and also shows excellent self-charging performance in pure seawater.

An electrostatic precipitator particle collection unit with a particle collecting electrode and a repelling electrode fabricated with static dissipative materials. The static dissipative material may be a polymer, may be a synthetic polymer, and may be a moldable polymer. The electrode plates may be formed from thermoplastic or thermoset polymer.

A method for forming an Ag / AgCl coated electrode includes providing a polymeric electrode substrate made of Acrylonitrile Butadiene Styrene (ABS). A layer of silver (Ag) is deposited on the polymeric electrode substrate using physical vapor deposition (PVD) to form an Ag coated electrode. The layer of Ag is deposited to a first thickness by sputtering an Ag target onto the polymeric electrode substrate. The Ag coated electrode is then converted to a layer of silver / silver chloride (Ag / AgCl) by dipping it into a conversion solution. The resulting Ag / AgCl coated surface electrode provides improved performance and stability for various applications.

The application discloses an organic polymer electrode material and a preparation method and application thereof, and belongs to the field of energy storage materials. The organic polymer electrode material is a polymer containing a tri-s-triazine structure unit and taking a conjugated carbonyl as a connecting group. The organic polymer electrode material contains a nitrogen-rich conjugated structure, contains rich C=N and C=O groups as active sites for storing lithium, has excellent structural stability and a high theoretical specific capacity, and the theoretical specific capacity is greater than 300 mAh.g ‑1 When the organic polymer electrode material is applied to a lithium ion battery positive electrode, high specific capacity, good rate performance and cycle performance are achieved, and the organic polymer electrode material is expected to be applied to the field of next-generation sustainable, environment-friendly and high-energy-density energy storage batteries.

The present application provides an ether polymer, an electrode sheet, and a battery cell, a battery, and an electric device related thereto. The ether polymer is added to a first solvent at 45°C to form an ether polymer system; the ether polymer system stands for 8 hours at 45°C; after standing for 24 hours or longer at 25°C, the ether polymer system is filtered by means of a 200-mesh filter screen and then a first substance remains. The mass of the ether polymer is n, and the unit of the ether polymer is g; the mass of the first substance is m, and the unit of the first substance is g; the ether polymer and the first substance satisfy: 5 ≤ m / n ≤ 1000. When the ether polymer is applied to a battery cell, the cycle performance of the battery cell can be improved.

The present application relates to ITO flexible electrode in the field of application of flexible solar cell, specifically relates to electrochemical in-situ polymerization ITO solar cell electrode and its preparation method. In order to solve the problem of brittleness, conductivity and transparency of flexible electrode, the present application polymerizes polymer on ITO electrode by electrochemical in-situ polymerization, and prepares ITO polymer electrode which integrates the advantages of thermal stability, high conductivity, transparency and flexibility. The electrochemical in-situ polymerization ITO solar cell electrode provided by the present application comprises a transparent flexible bottom backing layer, an ITO layer, the ITO layer covers the transparent flexible bottom backing layer, and further comprises a polymer polymer in the non-crystalline part of the ITO layer. The product provided by the present application provides the flexible organic solar cell industry, and provides the electrode which simultaneously integrates the advantages of high light transmittance, high conductivity and flexibility.

The present application provides a lithium-ion secondary battery, comprising an aldehyde-ketone polymer. The aldehyde-ketone polymer satisfies: 5≤m / n≤1000, in which n represents a mass of the aldehyde-ketone polymer, in grams, and m represents a mass, in grams, of a first substance that is obtained by: adding the aldehyde-ketone polymer to a first solvent at 45° C. to form a polymer system; allowing the polymer system to stand for 8 hours at 45° C. and for ≥24 hours at 25° C., and then filtering the polymer system through a 200-mesh screen to obtain remains as the first substance.

The application discloses a stretchable porous fiber fabric for sensing and thermal management and a preparation method thereof. The fabric is woven by coaxial fibers prepared by simple and low-cost wet spinning. The outer shell layer comprises a stretchable polymer matrix and a high dielectric constant doping material; the inner core layer comprises a stretchable polymer matrix and an intrinsic stretchable conductive material LM. Based on the coupling effect of contact electrification and electrostatic induction, with the help of material modification and the porous structure spontaneously endowed by wet spinning, the fabric can realize high-sensitivity self-powered sensing. Meanwhile, compared with traditional polymer electrodes, the fabric can still maintain excellent conductivity in a highly stretchable situation with the help of LM, realizing strain resistance sensing with a wider response range. Moreover, the fabric has sensing function and can be used for personal thermal management. In addition, the integrated coaxial spinning technology ensures that the fabric can be washed multiple times without performance degradation.

The present application provides a polymer, electrode plate and related battery cell, battery and electrical device. The polymer satisfies: 5 ≤ m / n ≤ 1000, in which n represents a mass of the polymer, in grams, and m represents a mass, in grams, of the first substance that is obtained by steps of adding the polymer to a first solvent at a first temperature to form a polymer system, allowing the polymer system to stand for 8 hours at the first temperature and for ≥24 hours at a second temperature; and then filtering the polymer system through a 200-mesh screen, to obtain remains on the screen as the first substance and wherein the first temperature is higher than the second temperature. When polymer is applied to battery cells, it can improve the cycle performance of the battery cells.

The invention discloses a conjugated polymer electrode material, a preparation method and application of the conjugated polymer electrode material in a lithium ion battery. The conjugated polymer electrode material is synthesized by taking N1, N1, N4, N4-tetra (4-bromophenyl) benzene-1, 4-diamine and 5, 10-dihydrophenazine as raw materials and adopting a Buchwald-Hartwig reaction. The invention also provides an application of the conjugated polymer electrode material in a positive electrode material of a lithium ion battery. The conjugated polymer electrode material prepared by the invention has an extended conjugated structure and a high specific surface area, is beneficial to electron transfer and ion transmission as a lithium ion battery positive electrode material, shows excellent electrochemical performance, and has a relatively good application prospect in the field of lithium ion battery positive electrode materials.

The invention discloses an electrode material using a geopolymer alkali-activated material. The electrode material is prepared by the following steps: uniformly mixing ground geopolymer powder, transition metal oxide powder and a conductive agent according to a mass ratio of (3-100): (3-30): 2 to obtain a positive electrode mixture; fully mixing the obtained positive electrode mixture with a solvent and an alkali activator to obtain electrode slurry, and carrying out hydration reaction molding in a mold to obtain a positive electrode material; uniformly mixing the ground geopolymer powder, a carbon material and a conductive agent according to a mass ratio of (3-100): (3-30): 2 to obtain a negative electrode mixture; fully mixing the obtained negative electrode mixture with a solvent and an alkali activator to obtain electrode slurry, and carrying out hydration reaction molding in a mold to obtain a negative electrode material; the geopolymer, the electrode active material and the conductive agent are used as main materials, the hydration activity of the geopolymer is activated through the alkali activator, the positive electrode, the negative electrode and the cement-based battery are manufactured, and resource utilization of solid waste is achieved while electric energy storage is achieved.

Provided is a polymer. The polymer may be obtained by polymerizing a first monomer. The first monomer may be at least one selected from the group consisting of compounds represented by formula (1), derivatives thereof, and salts of these. In formula (1), X and Y may be at least one selected from among -R, -NH2, -NHR, -NR1R2, -NHCOR, -N=NR, a halogen, -OH, -OM, -OR, -CHO, -C(=O)R, -COOM, -COOR, -CN, -C=CR1R2, -C≡CR, -Ph, -NO2, -SO3R, -SO3M, -SR, -S-SR, -P(=O)R1R2 and -P(=O)(OR1)(OR2). M may be a monovalent metal ion. R, R1 and R2 may each be hydrogen or a straight chain or branched saturated aliphatic hydrocarbon or unsaturated aliphatic hydrocarbon having three or fewer carbon atoms.

A method for forming an Ag / AgCl coated electrode includes providing a polymeric electrode substrate made of Acrylonitrile Butadiene Styrene (ABS). A layer of silver (Ag) is deposited on the polymeric electrode substrate using physical vapor deposition (PVD) to form an Ag coated electrode. The layer of Ag is deposited to a first thickness by sputtering an Ag target onto the polymeric electrode substrate. The Ag coated electrode is then converted to a layer of silver / silver chloride (Ag / AgCl) by dipping it into a conversion solution. The resulting Ag / AgCl coated surface electrode provides improved performance and stability for various applications.

This invention contains 12 mol% to 68 mol% of the first structural unit (-CH2CR). 1 (CONR) 2 R 3 ) -), 12 mol% to 87 mol% of the second structural unit (-CH2CR) 4 (COOX)-), and 1.0 mol% to 60 mol% of the third structural unit (-CH2CR) 5 (C≡N)-).