CN110760280B - Conductive adhesive for zinc-bromine flow battery pole plate and preparation method thereof - Google Patents
Conductive adhesive for zinc-bromine flow battery pole plate and preparation method thereof Download PDFInfo
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- CN110760280B CN110760280B CN201911032926.8A CN201911032926A CN110760280B CN 110760280 B CN110760280 B CN 110760280B CN 201911032926 A CN201911032926 A CN 201911032926A CN 110760280 B CN110760280 B CN 110760280B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/02—Electrically-conducting adhesives
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
- H01M4/8668—Binders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
- H01M4/8673—Electrically conductive fillers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a conductive adhesive for a zinc-bromine flow battery pole plate and a preparation method thereof, wherein the conductive adhesive comprises the following components in percentage by mass: solvent: 40-55%, sizing material: 19-25%, toughening agent: 2-10%, conductive agent: 20-25% and the balance adhesion promoter. The conductive adhesive for the zinc-bromine flow battery pole plate has good conductivity through the synergistic effect of the components, does not lose efficacy or decompose in the electrochemical reaction process, has high peel strength and good toughness, has good thermal shock resistance, and is high in curing speed, free of high-temperature baking and convenient to use.
Description
Technical Field
The invention relates to the technical field of flow energy storage batteries, in particular to a conductive adhesive for a zinc-bromine flow battery pole plate and a preparation method thereof.
Background
The flow battery is a new type of high capacity electrochemical energy storage device, it is different from the battery using solid material electrode or gas electrode, its active material is flowing electrolyte solution, the most obvious characteristic is large-scale electric storage, it has the characteristics of high capacity, wide application field and long cycle service life. For a long time, a zinc energy storage system with high energy density and low cost has good feasibility and operability in application, so that a zinc bromine redox flow battery is concerned and valued by people. Compared with a lead-acid battery, the zinc-bromine flow battery has higher energy density and power density, and is more efficient and clean; and has a price advantage compared with other flow batteries. The key materials of the zinc-bromine flow battery comprise an electrode, a diaphragm, an electrolyte and the like. Research shows that the cost of the electrode material accounts for about 50% of the cost of the battery, the electrode material is also a key material influencing the service life of the battery, the reliability of the electrode material is improved, the cost of the battery can be effectively reduced, and the electrode material has important significance for improving the performance and the service life of the battery.
The aqueous solution of bromine and bromine salt in the zinc-bromine flow battery has corrosivity to electrode materials, and long-time operation can cause electrode aging deformation, thereby greatly influencing the performance and the service life of the battery. Therefore, the electrode material needs to have good corrosion resistance, and common electrode materials include graphite, carbon felt, glassy carbon, metal plates, carbon-plastic composite materials and the like. The carbon-plastic composite material can greatly reduce the corrosion of bromine water and improve the electrode strength, but has high resistivity and higher overpotential, thereby causing poor battery performance.
Disclosure of Invention
In view of the above, the invention aims to provide a conductive adhesive for a zinc-bromine flow battery electrode plate, so as to solve the problems of poor mechanical properties of the existing graphite plate electrode, poor corrosion resistance of a metal plate, poor battery performance of a composite plate and high cost.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a conductive adhesive for a zinc-bromine flow battery pole plate comprises the following components in percentage by mass: solvent: 40-55%, sizing material: 19-25%, toughening agent: 2-10%, conductive agent: 20-25% and the balance adhesion promoter.
Optionally, the solvent is one or more of N-methylpyrrolidone, N-dimethylformamide, dimethyl sulfoxide, methyl acetate, ethyl acetate, acetone, xylene.
Optionally, the sizing is composed of a fluorine-containing resin and an acrylic resin; the mass ratio of the fluorine-containing resin to the acrylic resin is (1-2) to (8-9). Optionally, the molecular weight of the fluorine-containing resin is larger than 400000, and the purity is larger than 99.5%; the molecular weight of the acrylic resin is 75000-120000, and the purity is more than 99 percent.
Optionally, the toughening agent is one or more of styrene butadiene rubber, chloroprene rubber, nitrile rubber, ethylene-vinyl acetate copolymer and methyl methacrylate-ethyl acrylate copolymer.
Optionally, the adhesion promoter is an n-butyl acetate solution of a modified polyester resin that is silicone-free; the weight percentage of the modified polyester resin without silicone is 10-30%.
Optionally, the modified polyester resin without silicone is one of epoxy modified acrylic resin, polyurethane modified acrylic resin, and acrylic modified polyester resin.
Optionally, the conductive agent is one or more of graphite powder, conductive carbon black, carbon nanotubes and graphene.
The second purpose of the invention is to provide a method for preparing the conductive adhesive for the polar plate of the zinc-bromine flow battery, which comprises the following steps:
1) dissolving the sizing material in the solvent to obtain a solution A;
2) mixing the solution A, the toughening agent and the adhesion promoter, and stirring to obtain a glue solution B;
3) and adding the conductive agent into the glue solution B, stirring, and performing vacuum degassing to obtain the conductive adhesive for the zinc-bromine flow battery plate.
Optionally, the stirring speed in the step 2) is 200-300r/min, and the stirring time is 2-4 h.
Compared with the prior art, the conductive adhesive for the zinc-bromine flow battery plate has the following advantages:
1. the conductive adhesive for the zinc-bromine flow battery pole plate has good conductivity through the synergistic effect of the components, does not lose efficacy or decompose in the electrochemical reaction process, has high peel strength and good toughness, has good thermal shock resistance, and is high in curing speed, free of high-temperature baking and convenient to use.
2. The conductive adhesive for the zinc-bromine flow battery pole plate can bond the porous graphite felt with good conductivity with the metal plate with good mechanical strength and corrosion resistance to form the battery pole plate with stable performance, meanwhile, the conductive adhesive has good bromine, bromine hydrogen acid and bromine salt aqueous solution corrosion resistance, the electrode is not aged in the process of multiple charging and discharging cycles, the stable charging and discharging process is maintained, and when the conductive adhesive is used for preparing the zinc-bromine flow battery, the price of the battery pole plate is reduced, and the charging and discharging cycle life of the battery is greatly prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a battery bipolar plate prepared by using the conductive adhesive for the zinc-bromine flow battery plate.
Reference numerals:
1-metal plate, 2-conductive adhesive and 3-graphite felt.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to examples.
Example 1
A conductive adhesive for a zinc-bromine flow battery plate comprises the following components in percentage by mass: solvent: 50% of a sizing material: 24%, toughening agent: 3%, adhesion promoter: 1%, conductive agent: 22 percent. The solvent is composed of 90% of ethyl acetate and 10% of N-methyl pyrrolidone, the sizing material is composed of 10% of fluorine-containing resin and 90% of acrylic resin, the toughening agent is styrene butadiene rubber, the conductive agent is composed of 90% of graphite powder and 10% of carbon nano tubes, the adhesion promoter is an N-butyl acetate solution of polyurethane modified acrylic resin, and the weight percentage of the polyurethane modified acrylic resin in the adhesion promoter is 30%.
The conductive adhesive for the zinc-bromine flow battery plate is prepared by the following method:
dissolving fluorine-containing resin in N-methyl pyrrolidone to obtain solution A with the mass fraction of 10%1；
Dissolving acrylic resin in ethyl acetate to obtain a solution A with the mass fraction of 45%2；
Mixing the solution A1Solution A2Adding the toughening agent and the adhesion promoter into a sealed rubber material mixer, and stirring at a stirring speed of 300r/min for 2-4h to uniformly disperse the materials to obtain a rubber solution B;
and slowly adding the conductive agent into the mixer for mixing, stirring for 2 hours at room temperature to uniformly disperse the conductive agent in the glue solution B, and then, degassing in vacuum to obtain the conductive adhesive for the zinc-bromine flow battery plate.
Example 2
A conductive adhesive for a zinc-bromine flow battery plate comprises the following components in percentage by mass: solvent: 55% and sizing material: 21.5%, toughening agent: 3%, adhesion promoter: 0.5%, conductive agent: 20 percent. The solvent is composed of 39% of ethyl acetate, 50% of methyl acetate and 11% of N-methyl pyrrolidone, the sizing material is composed of 11% of fluorine-containing resin and 89% of acrylic resin, the toughening agent is styrene butadiene rubber, the conductive agent is composed of 85% of graphite powder and 15% of conductive carbon black, the adhesion promoter is an N-butyl acetate solution of epoxy modified acrylic resin, and the weight percentage of the epoxy modified acrylic resin in the adhesion promoter is 30%.
The conductive adhesive for the zinc-bromine flow battery plate is prepared by the following method:
dissolving fluorine-containing resin in N-methyl pyrrolidone to obtain solution A with the mass fraction of 10%1；
Dissolving acrylic resin in a mixed solvent of ethyl acetate and methyl acetate to obtain a solution A with the mass fraction of 45%2；
Mixing the solution A1Solution A2Toughening agent and adhesive forceAdding the accelerant into a sealed sizing material mixer, and stirring at a stirring speed of 200r/min for 2-4h to uniformly disperse the materials to obtain a glue solution B;
and slowly adding the conductive agent into the mixer for mixing, stirring for 3 hours at room temperature to uniformly disperse the conductive agent in the glue solution B, and then, degassing in vacuum to obtain the conductive adhesive for the zinc-bromine flow battery plate.
Example 3
A conductive adhesive for a zinc-bromine flow battery plate comprises the following components in percentage by mass: solvent: 45% and sizing material: 24.5%, toughening agent: 4%, adhesion promoter: 1.5%, conductive agent: 25 percent. The solvent consists of 8% of N-methyl pyrrolidone and 92% of ethyl acetate, the sizing material consists of 8% of fluorine-containing resin and 92% of acrylic resin, the toughening agent consists of 50% of nitrile rubber and 50% of styrene butadiene rubber, the conductive agent consists of 95% of graphite powder and 5% of graphene, the adhesion promoter is an N-butyl acetate solution of acrylic modified polyester resin, and the weight percentage of the acrylic modified polyester resin in the adhesion promoter is 20%.
The conductive adhesive for the zinc-bromine flow battery plate is prepared by the following method:
dissolving fluorine-containing resin in N-methyl pyrrolidone to obtain solution A with the mass fraction of 10%1；
Dissolving acrylic resin in ethyl acetate to obtain a solution A with the mass fraction of 45%2；
Mixing the solution A1Solution A2Adding the toughening agent and the adhesion promoter into a sealed glue material mixer, and stirring at a stirring speed of 250r/min for 2-4h to uniformly disperse the materials to obtain a glue solution B;
and slowly adding the conductive agent into the mixer for mixing, stirring for 3 hours at room temperature to uniformly disperse the conductive agent in the glue solution B, and then, degassing in vacuum to obtain the conductive adhesive for the zinc-bromine flow battery plate.
Example 4
A conductive adhesive for a zinc-bromine flow battery plate comprises the following components in percentage by mass: solvent: 50% of a sizing material: 18%, toughening agent: 10%, adhesion promoter: 2%, conductive agent: 20 percent. The adhesive comprises a solvent, a sizing material, a toughening agent, a conductive agent and an adhesion promoter, wherein the solvent is composed of 12% of N, N-dimethylformamide and 88% of methyl acetate, the sizing material is composed of 15% of fluorine-containing resin and 85% of acrylic resin, the toughening agent is a methacrylate-ethyl acrylate copolymer (MMA/EA copolymer, molecular weight is 120000), the conductive agent is composed of 90% of graphite powder and 10% of conductive carbon black, the adhesion promoter is an N-butyl acetate solution of polyurethane modified acrylic resin, and the weight percentage of the polyurethane modified acrylic resin in the adhesion promoter is 10%.
The conductive adhesive for the zinc-bromine flow battery plate is prepared by the following method:
dissolving fluorine-containing resin in N, N-dimethylformamide to obtain a solution A with the mass fraction of 10%1；
Dissolving acrylic resin in methyl acetate to obtain a solution A with the mass fraction of 45%2；
Mixing the solution A1Solution A2Adding the toughening agent and the adhesion promoter into a sealed rubber material mixer, and stirring at a stirring speed of 200r/min for 2-4h to uniformly disperse the materials to obtain a rubber solution B;
and slowly adding the conductive agent into the mixer for mixing, stirring for 5 hours at room temperature to uniformly disperse the conductive agent in the glue solution B, and then, degassing in vacuum to obtain the conductive adhesive for the zinc-bromine flow battery plate.
Comparative example 1
A conductive adhesive for a zinc-bromine flow battery plate comprises the following components in percentage by mass: 45% of solvent, 25% of sizing material, 5% of toughening agent and 25% of conductive agent. Wherein the solvent is composed of 10% of N-methyl pyrrolidone, 10% of dimethyl sulfoxide and 80% of ethyl acetate, the sizing material is composed of 10% of fluorine-containing resin and 90% of acrylic resin, the toughening agent is a methacrylate-ethyl acrylate copolymer (MMA/EA copolymer, molecular weight is 120000), and the conductive agent is 100% of graphite powder.
The conductive adhesive for the zinc-bromine flow battery plate is prepared by the following method:
dissolving fluorine-containing resin in N-methyl pyrrolidone and dimethyl sulfoxide to obtain solution A with the mass fraction of 10%1；
Dissolving acrylic resin in ethyl acetate to obtain a solution A with the mass fraction of 45%2；
Mixing the solution A1Solution A2Adding the toughening agent into a sealed rubber material mixer, and stirring at a stirring speed of 300r/min for 2-4h to uniformly disperse the materials to obtain a rubber solution B;
and slowly adding the conductive agent into the mixer for mixing, stirring for 3 hours at room temperature to uniformly disperse the conductive agent in the glue solution B, and then, degassing in vacuum to obtain the conductive adhesive for the zinc-bromine flow battery plate.
The molecular weight of the fluorine-containing resin is larger than 400000, and the purity is larger than 99.5%; the molecular weight of the acrylic resin is 75000-120000, and the purity is more than 99 percent; the purity of the toughening agent is more than 99%.
The conductive adhesives of examples 1 to 4 and comparative example 1 of the present invention were subjected to vacuum degassing treatment and used for the manufacture of a battery bipolar plate having a structure as shown in fig. 1.
The conductive adhesives of examples 1 to 4 of the present invention and comparative example 1 were coated on glass plates having a diameter of 25mm, respectively, by a brush coating method, and the resistivity of the conductive adhesives of examples 1 to 4 of the present invention and comparative example 1 after being completely cured was measured by a four-probe method, and the measurement results are shown in table 1.
The conductive adhesives of the examples 1-4 and the comparative example 1 of the present invention were coated on a tin plate 75mm long and 25mm wide by a brush coating method, respectively, and the peeling test part 2 of the adhesion test of the adhesive bonding of the adhesive-flexible material and the rigid material was adopted in GB-2790-; 180 ° peel "method the conductive adhesives of examples 1 to 4 of the present invention and comparative example 1 were tested for peel strength after complete curing, and the test results are shown in table 2.
As can be seen from tables 1 and 2, the conductive binders of examples 1 to 4 of the present invention all meet the use requirements of battery electrode materials, have good conductivity and peel strength, and are superior to those of comparative examples.
TABLE 1
TABLE 2
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The conductive adhesive for the polar plate of the zinc-bromine flow battery is characterized by comprising the following components in percentage by mass: solvent: 40-55%, sizing material: 18-25%, toughening agent: 2-10%, conductive agent: 20-25% of adhesion promoter, and the balance;
the adhesion promoter is n-butyl acetate solution of modified polyester resin without silicone; the weight percentage of the modified polyester resin without silicone is 10-30%; the sizing material is composed of fluorine-containing resin and acrylic resin; the mass ratio of the fluorine-containing resin to the acrylic resin is (1-2) to (8-9); the molecular weight of the fluorine-containing resin is greater than 400000, and the purity is greater than 99.5%; the molecular weight of the acrylic resin is 75000-120000, and the purity is more than 99 percent; the modified polyester resin without silicone is one of epoxy modified acrylic resin, polyurethane modified acrylic resin and acrylic modified polyester resin.
2. The conductive adhesive for zinc-bromine flow battery plates of claim 1, wherein the solvent is one or more of N-methylpyrrolidone, N-dimethylformamide, dimethyl sulfoxide, methyl acetate, ethyl acetate, acetone, xylene.
3. The conductive adhesive for the plates of the zinc-bromine flow battery as claimed in claim 1, wherein the toughening agent is one or more of styrene-butadiene rubber, chloroprene rubber, nitrile rubber, ethylene-vinyl acetate copolymer, and methyl methacrylate-ethyl acrylate copolymer.
4. The conductive adhesive for the plates of the zinc-bromine flow battery as claimed in claim 1, wherein the conductive agent is one or more of graphite powder, conductive carbon black, carbon nanotubes and graphene.
5. The method for preparing the conductive adhesive for the plates of the zinc-bromine flow battery as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
1) dissolving the sizing material in the solvent to obtain a solution A;
2) mixing the solution A, the toughening agent and the adhesion promoter, and stirring to obtain a glue solution B;
3) and adding the conductive agent into the glue solution B, stirring, and performing vacuum degassing to obtain the conductive adhesive for the zinc-bromine flow battery plate.
6. The method for preparing the conductive adhesive for the zinc-bromine flow battery pole plate as claimed in claim 5, wherein the stirring speed in the step 2) is 200-300r/min, and the stirring time is 2-4 h.
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| CN110760280B true CN110760280B (en) | 2021-07-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160139855A (en) * | 2015-05-29 | 2016-12-07 | 코오롱패션머티리얼 (주) | Method of manufacturing touch panel fabric |
| CN107452857A (en) * | 2017-06-26 | 2017-12-08 | 南通华隆微电子股份有限公司 | A kind of LED/photodiode encapsulating structure |
| CN107779120A (en) * | 2017-10-30 | 2018-03-09 | 北京信息科技大学 | A kind of piezo-electricity composite material high-adhesive-strength low-temperature cured conductive elargol and preparation method thereof |
| CN107793869A (en) * | 2017-11-27 | 2018-03-13 | 重庆三峡油漆股份有限公司 | Graphene conductive coating with superelevation conductive capability |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160139855A (en) * | 2015-05-29 | 2016-12-07 | 코오롱패션머티리얼 (주) | Method of manufacturing touch panel fabric |
| CN107452857A (en) * | 2017-06-26 | 2017-12-08 | 南通华隆微电子股份有限公司 | A kind of LED/photodiode encapsulating structure |
| CN107779120A (en) * | 2017-10-30 | 2018-03-09 | 北京信息科技大学 | A kind of piezo-electricity composite material high-adhesive-strength low-temperature cured conductive elargol and preparation method thereof |
| CN107793869A (en) * | 2017-11-27 | 2018-03-13 | 重庆三峡油漆股份有限公司 | Graphene conductive coating with superelevation conductive capability |
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