CN104538634B - Electrode binder and preparation method thereof - Google Patents
Electrode binder and preparation method thereof Download PDFInfo
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- CN104538634B CN104538634B CN201410753070.4A CN201410753070A CN104538634B CN 104538634 B CN104538634 B CN 104538634B CN 201410753070 A CN201410753070 A CN 201410753070A CN 104538634 B CN104538634 B CN 104538634B
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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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
- C08F291/12—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 on to nitrogen-containing macromolecules
-
- 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
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention discloses an electrode binder and a preparation method thereof. The binder comprises the following components: 2-acrylamido-2-methyl propane sulfonic acid, active silica powder, liquid nitrile rubber, glass fibers, a coupling agent, an initiator, carboxymethylcellulose, barium stearate, methyl methacrylate, paraffin, epoxy acrylate and carbon powder. The preparation method comprises the steps of uniformly stirring and mixing 2-acrylamido-2-methyl propane sulfonic acid, liquid nitrile rubber, glass fibers, carboxymethylcellulose, methyl methacrylate, paraffin and epoxy acrylate in a mixing stirrer to obtain a mixture I; heating the mixture I in an inert gas atmosphere to have reaction to obtain a reactant I; adding the active silica powder, the coupling agent, the initiator, barium stearate and the carbon powder into the reactant I to be heated for reacting under a vacuum condition to obtain the electrode binder. The electrode binder provided by the invention is excellent in comprehensive performance and capable of being widely applied to the field of electrochemistry.
Description
Technical field
The invention belongs to electrochemical field, and in particular to a kind of binders for electrodes and preparation method thereof.
Background technology
In the electrodes, binding agent is for the macromolecular compound by electrode active material adhesion on a current collector.It
Main Function is to bond and keep active substance, is strengthened between electrode active material and conductive agent and active material and collector
Electronics contact, the preferably stable structure of pole piece, for the lithium ion battery that the volume in charge and discharge process can expand/shrink
For both positive and negative polarity, it is desirable to which binding agent can play certain cushioning effect to this.Select a kind of suitable lithium ion battery bonding
Agent, it is desirable to which its ohmage is little, in the electrolytic solution stable performance, does not expand, loose, not shedding.In general, binding agent
Performance, such as cohesive force, pliability, alkali resistance, hydrophilic etc. directly affect the performance of battery.Add the bonding of optimised quantity
Agent, it is possible to obtain larger capacity, longer cycle life and relatively low internal resistance, this is to improving the cycle performance of battery, quick
Charge and discharge ability and reduce the intrinsic pressure etc. of battery there is facilitation.Therefore select a kind of suitable binding agent extremely important.
The binders for electrodes for being used at present, its hardening time are longer, commonly reach more than 5 hours, and shear strength is relatively low,
Alkaline resistance properties can reach 200 hours, while in use, the discharge capacity of certain cycle-index has larger decline,
Therefore need further to research and develop that a kind of hardening time is short, cohesive force is strong, the binders for electrodes that electric property is excellent.
The content of the invention
It is an object of the invention to provide a kind of binders for electrodes and its system to overcome above the deficiencies in the prior art
Preparation Method, improves the shear strength of binding agent, reduces hardening time, strengthen electric property, improve heat resistance.
The present invention is realized using following technological means：
A kind of binders for electrodes, raw material include in parts by weight：2- acrylamide-2-methylpro panesulfonic acid 10-20 parts, it is living
Property silicon powder 2-8 parts, LNBR 3-7 parts, glass fiber 1-5 parts, coupling agent 1-5 parts, initiator 1-5 parts, carboxymethyl are fine
Dimension element 4-8 parts, barium stearate 2-6 parts, methyl methacrylate 3-8 parts, paraffin 1-4 parts, epoxy acrylate 2-7 parts, carbon dust
1-4 parts.
Described binders for electrodes, it may be preferred to include for raw material in parts by weight：2- acrylamido -2- methyl-prop sulphurs
Sour 14-18 parts, active micro silicon powder 4-7 parts, LNBR 5-7 parts, glass fiber 2-4 parts, coupling agent 3-5 parts, initiator 1-3
Part, carboxymethyl cellulose 5-7 parts, barium stearate 4-5 parts, methyl methacrylate 4-6 parts, paraffin 2-4 parts, epoxy acrylate
3-6 parts, carbon dust 3-4 parts.
Described binders for electrodes, coupling agent can be silane coupler.
Described binders for electrodes, initiator can be Ammonium persulfate..
The preparation method of the binders for electrodes described in more than one any one, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl methacrylate, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, obtain mixture one；
Step 3, mixture one is proceeded in reactor, and 60-80 DEG C is heated in atmosphere of inert gases, stirs 40-60
Minute, obtain reactant one；
Step 4, active micro silicon powder, coupling agent, initiator, barium stearate and carbon dust are added in reactant one, true
100-120 DEG C is heated under conditions of reciprocal of duty cycle 0.02-0.06MPa, 50-100 minutes is stirred, is down to room temperature, obtains electrode adhesion
Agent.
The preparation method of described binders for electrodes, the mixing speed being uniformly mixed in step 2 can be 300-
350 revs/min, mixing time can be 20-30 minutes.
The preparation method of described binders for electrodes, the speed stirred in step 3 can be 100-120 rev/min.
The preparation method of described binders for electrodes, the speed stirred in step 4 can be 70-80 rev/min.
The binders for electrodes that the present invention is provided has good performance, within wherein having reached 45min hardening time, shearing
Intensity has reached more than 30MPa, and 500 power capacitance rates of descent of circulation have been reached within 1.2%, and alkaline resistance properties has reached 500h
Without exception, it is without exception that heat resistance has reached 2000h.
Specific embodiment
Embodiment 1
A kind of binders for electrodes, raw material include in parts by weight：10 parts of 2- acrylamide-2-methylpro panesulfonic acids, activity
2 parts of silicon powder, 3 parts of LNBR, 1 part of glass fiber, 1 part of silane coupler, 1 part of initiator ammonium persulfate, carboxymethyl are fine
4 parts of dimension element, 2 parts of barium stearate, 3 parts of methyl methacrylate, 1 part of paraffin, 2 parts of epoxy acrylate, 1 part of carbon dust.
The preparation method of above-described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl methacrylate, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, wherein mixing speed
For 300 revs/min, mixing time is 20 minutes, obtains mixture one；
Step 3, mixture one is proceeded in reactor, and 60 DEG C are heated in atmosphere of inert gases, is stirred 40 minutes,
Mixing speed is 100 revs/min, obtains reactant one；
Step 4, active micro silicon powder, silane coupler, initiator ammonium persulfate, barium stearate and carbon dust are added to instead
In answering thing one, 100 DEG C are heated under conditions of vacuum 0.02MPa, are stirred 50 minutes, mixing speed is 70 revs/min, drop
To room temperature, binders for electrodes is obtained.
Embodiment 2
A kind of binders for electrodes, raw material include in parts by weight：14 parts of 2- acrylamide-2-methylpro panesulfonic acids, activity
4 parts of silicon powder, 5 parts of LNBR, 2 parts of glass fiber, 3 parts of silane coupler, 1 part of initiator ammonium persulfate, carboxymethyl are fine
5 parts of dimension element, 4 parts of barium stearate, 4 parts of methyl methacrylate, 2 parts of paraffin, 3 parts of epoxy acrylate, 3 parts of carbon dust.
The preparation method of above-described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl methacrylate, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, wherein mixing speed
For 320 revs/min, mixing time is 24 minutes, obtains mixture one；
Step 3, mixture one is proceeded in reactor, and 65 DEG C are heated in atmosphere of inert gases, is stirred 48 minutes,
Mixing speed is 105 revs/min, obtains reactant one；
Step 4, active micro silicon powder, silane coupler, initiator ammonium persulfate, barium stearate and carbon dust are added to instead
In answering thing one, 108 DEG C are heated under conditions of vacuum 0.03MPa, are stirred 60 minutes, mixing speed is 72 revs/min, drop
To room temperature, binders for electrodes is obtained.
Embodiment 3
A kind of binders for electrodes, raw material include in parts by weight：16 parts of 2- acrylamide-2-methylpro panesulfonic acids, activity
5 parts of silicon powder, 6 parts of LNBR, 3 parts of glass fiber, 4 parts of silane coupler, 2 parts of initiator ammonium persulfate, carboxymethyl are fine
6 parts of dimension element, 5 parts of barium stearate, 5 parts of methyl methacrylate, 3 parts of paraffin, 5 parts of epoxy acrylate, 4 parts of carbon dust.
The preparation method of above-described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl methacrylate, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, wherein mixing speed
For 330 revs/min, mixing time is 26 minutes, obtains mixture one；
Step 3, mixture one is proceeded in reactor, and 70 DEG C are heated in atmosphere of inert gases, is stirred 50 minutes,
Mixing speed is 110 revs/min, obtains reactant one；
Step 4, active micro silicon powder, silane coupler, initiator ammonium persulfate, barium stearate and carbon dust are added to instead
In answering thing one, 110 DEG C are heated under conditions of vacuum 0.03MPa, are stirred 70 minutes, mixing speed is 76 revs/min, drop
To room temperature, binders for electrodes is obtained.
Embodiment 4
A kind of binders for electrodes, raw material include in parts by weight：18 parts of 2- acrylamide-2-methylpro panesulfonic acids, activity
7 parts of silicon powder, 7 parts of LNBR, 4 parts of glass fiber, 5 parts of silane coupler, 3 parts of initiator ammonium persulfate, carboxymethyl are fine
7 parts of dimension element, 5 parts of barium stearate, 6 parts of methyl methacrylate, 4 parts of paraffin, 6 parts of epoxy acrylate, 4 parts of carbon dust.
The preparation method of above-described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl methacrylate, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, wherein mixing speed
For 340 revs/min, mixing time is 30 minutes, obtains mixture one；
Step 3, mixture one is proceeded in reactor, and 75 DEG C are heated in atmosphere of inert gases, is stirred 56 minutes,
Mixing speed is 115 revs/min, obtains reactant one；
Step 4, active micro silicon powder, silane coupler, initiator ammonium persulfate, barium stearate and carbon dust are added to instead
In answering thing one, 118 DEG C are heated under conditions of vacuum 0.04MPa, are stirred 80 minutes, mixing speed is 80 revs/min, drop
To room temperature, binders for electrodes is obtained.
Embodiment 5
A kind of binders for electrodes, raw material include in parts by weight：20 parts of 2- acrylamide-2-methylpro panesulfonic acids, activity
8 parts of silicon powder, 7 parts of LNBR, 5 parts of glass fiber, 5 parts of silane coupler, 5 parts of initiator ammonium persulfate, carboxymethyl are fine
8 parts of dimension element, 6 parts of barium stearate, 8 parts of methyl methacrylate, 4 parts of paraffin, 7 parts of epoxy acrylate, 4 parts of carbon dust.
The preparation method of above-described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl-prop
E pioic acid methyl ester, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, wherein stirring speed
Spend for 350
Rev/min, mixing time is 30 minutes, obtains mixture one；
Step 3, mixture one is proceeded in reactor, and 80 DEG C are heated in atmosphere of inert gases, is stirred 60 minutes,
Mixing speed is 120 revs/min, obtains reactant one；
Step 4, active micro silicon powder, silane coupler, initiator ammonium persulfate, barium stearate and carbon dust are added to instead
In answering thing one, 120 DEG C are heated under conditions of vacuum 0.06MPa, are stirred 100 minutes, mixing speed is 80 revs/min,
Room temperature is down to, binders for electrodes is obtained.
Reference examples
A kind of binders for electrodes, raw material include in parts by weight：16 parts of 2- acrylamide-2-methylpro panesulfonic acids, activity
5 parts of silicon powder, 6 parts of LNBR, 3 parts of glass fiber, 4 parts of silane coupler, 2 parts of initiator ammonium persulfate, carboxymethyl are fine
6 parts of dimension element, 5 parts of barium stearate, 5 parts of methyl methacrylate, 3 parts of paraffin, 5 parts of epoxy acrylate, 4 parts of carbon dust.
The preparation method of above-described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose,
Methyl methacrylate, paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, wherein mixing speed
For 330 revs/min, mixing time is 26 minutes, obtains mixture one；
Step 3, mixture one is proceeded in reactor, adds active micro silicon powder, silane coupler, initiator persulfuric acid
Ammonium, barium stearate and carbon dust, are heated to 110 DEG C under conditions of vacuum 0.03MPa, stir 70 minutes, and mixing speed is 76
Rev/min, room temperature is down to, binders for electrodes is obtained.
The binders for electrodes prepared to above example carries out performance test, as a result as follows：
The binders for electrodes that present invention offer be can be seen that from above result of the test has good performance, wherein solidifying
Within time has reached 45min, shear strength has reached more than 30MPa, and 500 power capacitance rates of descent of circulation reach
Within 1.2%, it is without exception that alkaline resistance properties has reached 500h, and it is without exception that heat resistance has reached 2000h, while prepared by embodiment 3
The binders for electrodes combination property for obtaining more is projected, therefore can be used as most preferred embodiment.Reference examples are in embodiment 3
On the basis of the further proving test that carries out, wherein the reactant of step 3 in embodiment 3 is not carried out in preparation process
One preparation, and each component is carried out into vacuum response directly, as a result cause the binding agent properties for obtaining to obtain substantially
Decline, it can be said that bright, the preparation that reactant one is first carried out in preparation method is the final product that can obtain excellent performance
The committed step of product.
Claims (7)
1. a kind of binders for electrodes, it is characterised in that raw material includes in parts by weight：2- acrylamide-2-methylpro panesulfonic acids
10-20 parts, active micro silicon powder 2-8 parts, LNBR 3-7 parts, glass fiber 1-5 parts, coupling agent 1-5 parts, initiator 1-5
Part, carboxymethyl cellulose 4-8 parts, barium stearate 2-6 parts, methyl methacrylate 3-8 parts, paraffin 1-4 parts, epoxy acrylate
2-7 parts, carbon dust 1-4 parts；
The preparation method of described binders for electrodes, comprises the following steps：
Step one, weighs each component according to weight portion；
Step 2, by 2- acrylamide-2-methylpro panesulfonic acids, LNBR, glass fiber, carboxymethyl cellulose, methyl
Acrylic acid methyl ester., paraffin and epoxy acrylate are uniformly mixed in being added to mixing and blending machine, obtain mixture one；
Step 3, mixture one is proceeded in reactor, and 60-80 DEG C is heated in atmosphere of inert gases, 40-60 point of stirring
Clock, obtains reactant one；
Step 4, active micro silicon powder, coupling agent, initiator, barium stearate and carbon dust are added in reactant one, in vacuum
100-120 DEG C is heated under conditions of 0.02-0.06MPa, 50-100 minutes is stirred, is down to room temperature, obtains binders for electrodes.
2. binders for electrodes according to claim 1, it is characterised in that raw material includes in parts by weight：2- acrylamides
Base -2- methyl propane sulfonic acid 14-18 parts, active micro silicon powder 4-7 parts, LNBR 5-7 parts, glass fiber 2-4 parts, coupling agent 3-
5 parts, initiator 1-3 parts, carboxymethyl cellulose 5-7 parts, barium stearate 4-5 parts, methyl methacrylate 4-6 parts, paraffin 2-4
Part, epoxy acrylate 3-6 parts, carbon dust 3-4 parts.
3. binders for electrodes according to claim 1, it is characterised in that coupling agent is silane coupler.
4. binders for electrodes according to claim 1, it is characterised in that initiator is Ammonium persulfate..
5. binders for electrodes according to claim 1, it is characterised in that be uniformly mixed in preparation method step 2
Mixing speed is 300-350 rev/min, and mixing time is 20-30 minutes.
6. binders for electrodes according to claim 1, it is characterised in that the speed stirred in preparation method step 3 is
100-120 rev/min.
7. binders for electrodes according to claim 1, it is characterised in that the speed stirred in preparation method step 4 is
70-80 rev/min.
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| CN201410753070.4A CN104538634B (en) | 2014-12-10 | 2014-12-10 | Electrode binder and preparation method thereof |
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| CN104538634B true CN104538634B (en) | 2017-04-12 |
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| CN108574102B (en) * | 2017-02-28 | 2022-05-27 | 荒川化学工业株式会社 | Binder aqueous solution for lithium ion battery, slurry, electrode, separator/electrode laminate, and lithium ion battery |
| CN111234319B (en) * | 2020-01-17 | 2021-06-01 | 遵义市聚源建材有限公司 | High-density polymer regulator and preparation method thereof |
| CN112980351B (en) * | 2021-02-26 | 2022-10-11 | 江苏日御光伏新材料科技有限公司 | Binder for back electrode silver paste and preparation method thereof |
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|---|---|---|---|---|
| CN101210158A (en) * | 2006-12-26 | 2008-07-02 | 中南大学 | Electric bonding for battery or capacitor and composition containing the same used for electrode |
| CN101359737A (en) * | 2007-07-31 | 2009-02-04 | 比亚迪股份有限公司 | Water repelling adhesive, zincium cathode alkaline secondary cell using the water repelling adhesive |
| CN102703010A (en) * | 2012-05-11 | 2012-10-03 | 华东理工大学 | Epoxy adhesion for lithium battery flexible package and lithium battery flexible package material |
| CN103351448A (en) * | 2013-06-28 | 2013-10-16 | 中国科学院青岛生物能源与过程研究所 | High-temperature resistance lithium ion secondary battery adhesive and preparation method thereof |
-
2014
- 2014-12-10 CN CN201410753070.4A patent/CN104538634B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210158A (en) * | 2006-12-26 | 2008-07-02 | 中南大学 | Electric bonding for battery or capacitor and composition containing the same used for electrode |
| CN101359737A (en) * | 2007-07-31 | 2009-02-04 | 比亚迪股份有限公司 | Water repelling adhesive, zincium cathode alkaline secondary cell using the water repelling adhesive |
| CN102703010A (en) * | 2012-05-11 | 2012-10-03 | 华东理工大学 | Epoxy adhesion for lithium battery flexible package and lithium battery flexible package material |
| CN103351448A (en) * | 2013-06-28 | 2013-10-16 | 中国科学院青岛生物能源与过程研究所 | High-temperature resistance lithium ion secondary battery adhesive and preparation method thereof |
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Denomination of invention: An electrode binder and its preparation method Effective date of registration: 20200819 Granted publication date: 20170412 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: NANTONG RUIDA ELECTRONIC MATERIAL Co.,Ltd. Registration number: Y2020980005147 |
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Date of cancellation: 20211008 Granted publication date: 20170412 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: NANTONG RUIDA ELECTRONIC MATERIAL Co.,Ltd. Registration number: Y2020980005147 |