CN103367752A - Binder for battery electrode, and composition and electrode containing said binder - Google Patents
Binder for battery electrode, and composition and electrode containing said binder Download PDFInfo
- Publication number
- CN103367752A CN103367752A CN2013101103265A CN201310110326A CN103367752A CN 103367752 A CN103367752 A CN 103367752A CN 2013101103265 A CN2013101103265 A CN 2013101103265A CN 201310110326 A CN201310110326 A CN 201310110326A CN 103367752 A CN103367752 A CN 103367752A
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- Prior art keywords
- battery electrode
- electrode
- adhesive
- composition
- battery
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Classifications
-
- 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
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- 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)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A battery electrode is obtained by coating and drying a battery electrode composition containing active material with specific area from 0.05 to 100 m2/g and battery electrode aqueous binder, wherein the battery electrode aqueous binder has a drying film with gel content from 5 to 70 percent and storage elasticity modulus below 1.6*103N/cm2 at 95 degree centigrade.
Description
Technical field
The present invention relates to the good battery electrode use adhesive of bonding force of electrode.The invention still further relates to comprise this battery electrode with the battery electrode of adhesive with composition and be coated with this battery electrode with composition and dry and electrode.
Background technology
In recent years, because praise highly the agitation of carbon dioxide removal society, constantly increase as the demand of the secondary cell of the savings of energy, supply source.The conductive carbon material that particularly will store, discharge lithium ion is used for the nonaqueous electrolytic solution secondary battery of electrode because its light weight and energy density are high, as the importance increase of vehicle mounted.The vehicle mounted battery not only capacity required, power is large and battery behavior is good, also requires fail safe, long-life property.The employed electrode of this nonaqueous electrolytic solution secondary battery has the structure that has been coated with active material at metal base, and the adhesive as active material being adhered to metal base adopts polymer adhesive usually.Peeling off of active material is battery behavior to be reduced and electrode loses flatness and causes the main cause of the concentration of local of electric charge, may cause short circuit and part deteriorated.Therefore, require to make active material be bonded in the ability of metal base for polymer adhesive.This polymer adhesive generally adopts the rubber of the fluorine-based polymer such as Kynoar or dienes or acrylic compounds, carried out all the time bonding force, with the improvement of the adaptation of collector body.For example disclosed among the Japanese Patent Laid-Open 2011-134807 (patent documentation 1) by improve the technology of adaptation with the polymer adhesive with specific affinity, disclosed among the Japanese Patent Laid-Open 2012-014929 (patent documentation 2) by improve the technology of peel strength with the polymer adhesive with specific particle diameter distribution.In addition, disclosed the technology of improving adaptation by the polymer adhesive with a certain particular stiffness among the Japanese Patent Laid-Open 2008-081643 (patent documentation 3).But, all fully do not solve the above problems, need further to improve.
Summary of the invention
The object of the invention is to, as battery electrode use adhesive, use the electrode that bonding force is good and flexibility is good, thereby obtain the good batteries such as high-multiplying-power discharge performance and charge/discharge cycle characteristics.
The inventor conscientiously studies rear discovery in view of above-mentioned various situations, gel content by using desciccator diaphragm is in specific scope and the low and yielding battery electrode use of the storage elastic modulus adhesive under the hot environment, can obtain the good battery of bonding force, thereby can obtain the good batteries of electrical characteristics such as high-multiplying-power discharge performance and charge/discharge cycle characteristics, thereby finished the present invention.
That is, the invention provides battery electrode use adhesive, it is characterized in that, the gel content of desciccator diaphragm in 5～70% scope and 95 ℃ storage elastic modulus 1.6 * 10
3N/cm
2Below.
The battery electrode use adhesive of the application of the invention can obtain the good battery of bonding force, thereby can obtain the good batteries of electrical characteristics such as high-multiplying-power discharge performance and charge/discharge cycle characteristics.
Embodiment
Below, the present invention is described in detail.
The gel content of the desciccator diaphragm of battery electrode use adhesive of the present invention is in 5～70% scope, and 95 ℃ storage elastic modulus E ' is 1.6 * 10
3N/cm
2Below.
The gel content of the desciccator diaphragm of battery electrode use adhesive of the present invention is necessary for 5～70% in the value of measuring by the method for putting down in writing among the following embodiment.When gel content is lower than 5%, improve the effect deficiency of the bonding force of electrode; If gel content surpasses 70%, then since the flexibility of electrode reduce, so the calendering of electrode can cause structural deterioration or the formability variation when causing reeling.Be more preferably 30～60%.
In the battery electrode use adhesive of the present invention, the storage elastic modulus E ' in the times of measure by the method put down in writing among the following embodiment 95 ℃ must be 1.6 * 10
3N/cm
2Below.If the storage elastic modulus E ' in the time of 95 ℃ surpasses 1.6 * 10
3N/cm
2, then not yielding under the hot environment, the adhesive concentration of local distributes, thereby bonding force is descended.Better be 5.0 * 10
1～1.6 * 10
3N/cm
2, be more preferably 1.0 * 10
2～1.5 * 10
3N/cm
2
As battery electrode use adhesive of the present invention, can use the aqueous copolymer latex that obtains by known polymerization.Can use such as styrene butadiene rubbers (SBR), acrylonitrile-butadiene rubber (NBR), methyl methacrylate butadiene rubber (MBR), butadiene rubber (BR) equiconjugate polydiene latex with one kind or two or more as in acrylic rubber latex of principal monomer etc. of (methyl) acrylate, but be not particularly limited.In addition, from the viewpoint of the viscosity stability of coating composition, these copolymer emulsions are more preferably the monomer that uses unsaturated carboxylic acid monomer etc. to contain functional group and have carried out modification.
As copolymer emulsion, can preferably exemplify conjugated diene rubber latex.
Specifically, conjugated diene rubber latex can be by comprising aliphat conjugated diene monomer, unsaturated carboxylic acid monomer, can carrying out emulsion polymerisation with the monomer composition of other monomer of their copolymerization and obtain.
As aliphat conjugated diene monomer, can exemplify for example 1,3-butadiene.
Monomer composition for example comprises 20～80 quality %, better is the aliphat conjugated diene monomer of 30～60 quality %.
As unsaturated carboxylic acid monomer, can exemplify such as monocarboxylic acid monomers such as acrylic acid dicarboxylic acid monomers such as itaconic acid, fumaric acid.
Monomer composition for example comprises 0.1～20 quality %, better is the unsaturated carboxylic acid monomer of 0.5～10 quality %.
As other monomer, can exemplify such as alkenyl aroma family monomers such as styrene, such as vinyl cyanide base monomers such as acrylonitrile, such as unsaturated carboxylic acid alkyl ester monomers such as methyl methacrylates.
Monomer composition for example comprises 0～79.9 quality %, better is other monomer of 30～69.5 quality %.
In addition, can suitably add as required antiaging agent, anticorrisive agent, dispersant, thickener etc. in the battery electrode use adhesive of the present invention.
The vitrification point (Tg) of battery electrode use adhesive of the present invention better is below 50 ℃, is more preferably-30～20 ℃.If the vitrification point of adhesive (Tg) is in this scope, then under a small amount of use amount, adhesiveness is good, the adhesiveness of collector body and electrod composition layer is good, pole strength is strong, and flexibility is abundant, and easier suppression process when forming by electrode improves electrode density.
Battery electrode of the present invention comprises positive pole, negative pole active material and battery electrode use adhesive of the present invention separately with composition.Battery electrode of the present invention is not particularly limited with the kind of the active material that uses in the composition, can exemplify such as graphite, carbon fiber, resin burn till that carbon, linear graphite mixture, coke, pyrolysis vapor-grown carbon, furfuryl alcohol resin are charred, polyacene class organic semiconductor, MCMB, mesophase pitch class charcoal, fullerene, carbon nano-tube, Graphene, graphite whisker, quasi-isotropic charcoal, the sintered body of natural material and their carbonaceous materials such as crushed material, MnO
2, V
2O
5Deng transition metal oxide, LiCoO
2, LiMnO
2, LiNiO
2Deng composite oxides that contain lithium etc.; Can use a kind or be mixed with two or more.
The specific area of above-mentioned active material can be measured by the method for putting down in writing among the following embodiment, and its specific area better is 0.05～100m when using a kind
2/ g, the specific area of its mixture better is 0.05～100m when using more than 2 kinds
2/ g.
Specific area is lower than 0.05m
2During/g, adhesive excessively covers the surface of active material, and the tendency that exists internal resistance to increase is undesirable.In addition, if specific area surpasses 100m
2/ g, the tendency that then exists bonding force to descend, undesirable.Be more preferably 0.1～20m
2/ g further is more preferably 0.1～5m
2/ g.
Battery electrode of the present invention comprises battery electrode use adhesive of the present invention with composition, and this adhesive plays between the particle of electrode active material and the effect of the adhesive of electrode active material and collector body.Battery electrode of the present invention is not particularly limited with the use amount of the battery electrode use adhesive in the composition, by according to counting 0.1～10 weight portion, better be that the ratio of 1～7 weight portion comprises with solid constituent with respect to 100 weight portion active materials, can be made into composition for electrodes.When the incorporation of battery electrode use adhesive of the present invention is lower than 0.1 weight portion, there is the bonding hypodynamic tendency for collector body etc.; If surpass 10 weight portions, when being assembled into battery, overvoltage significantly rises, and exists battery behavior is caused dysgenic tendency.
Can add as required the various additives such as water-soluble thickener in the composition for electrodes of the present invention.Can exemplify the water-soluble thickeners such as carboxymethyl cellulose, methylcellulose, CMC, ethyl cellulose, polyvinyl alcohol, polyacrylic acid (salt), oxidized starch, phosphorylated starch, casein, the dispersants such as calgon, sodium phosphate trimer, sodium pyrophosphate, Sodium Polyacrylate are as the nonionic of the stabilizer of latex, anionic surfactant etc.
Battery electrode of the present invention can be by coating collector body and dry the acquisition with battery electrode of the present invention with composition.In addition, as the method for composition for electrodes of the present invention being coated collector body, can use the arbitrarily coater head such as reverse roll method, comma roller method, woodburytype, air knife method; As drying means, can use drying, fan drying machine, warm-air dryer, infrared heater, the FAR INFRARED HEATING machine etc. placed.Baking temperature is usually more than 100 ℃.
For battery electrode of the present invention, coat collector body and drying after, for the capacity that makes unit volume increases, better be the calendering of carrying out electrode.Method as to battery electrode calendering of the present invention is not particularly limited, and is generally the method by the pair of rolls pressurization.Pressure when battery electrode is rolled for example is 10
5More than the N/m, 10
7Below the N/m.The temperature of this roller is not particularly limited, and better is the high temperature of Tg than battery electrode use adhesive.Be more preferably more than Tg+20 ℃ of adhesive.
Employed collector body, sept, nonaqueous electrolyte, terminal, insulator, battery case etc. can use existing material without particular limitation during for the battery that make to use battery electrode use adhesive of the present invention to make.
Battery electrode use adhesive of the present invention, the battery electrode of the present invention that comprises this adhesive are not particularly limited with composition and battery electrode, particularly preferably nonaqueous electrolytic solution secondary battery.
Embodiment
Below, exemplify embodiment the present invention is carried out more specific description, but the present invention is not limited to these embodiment.Among the embodiment, part of expression ratio and % are based on weight basis.In addition, following method is adopted in the evaluation of each physical property among the embodiment.
The mensuration of the gel content of battery electrode use adhesive
Make the film of the battery electrode use adhesive of each embodiment and each comparative example by the drying machine of temperature 70 C.Then, the about 1g film of weighing is made as Xg.It is added in the toluene of 400ml, make its swelling dissolving 48 hours.Then, it is used the stainless steel metal mesh filter of 300 purposes of weighing, make toluene evaporates dry again, deduct wire netting weight from its dry rear weight, the dry rear weight of weighing sample is made as Yg.By following formula calculated for gel content.
Gel content (%)=(Y/X) * 100
The mensuration of the storage elastic modulus E ' of battery electrode use adhesive
Be that the ratio of 0.5 % by weight is added thickener (Sodium Polyacrylate according to the solid constituent amount with respect to adhesive in the battery electrode use adhesive of each embodiment, comparative example; goods number IX-1177 (Di-ichi Kogyo Seiyaku Co., Ltd. (worker industry System medicine Co., Ltd.) system)) and after mixing; in the curtain coating on glass with the polytetrafluoroethylsheet sheet protection; carry out 48 hours drying with 40 ℃, the condition of relative humidity 80%, make the film that thickness is 0.5mm ± 0.2mm.With this film with the UBM of Co., Ltd. (ユ ー ビ ー エ system society of Co., Ltd.) DMTA processed (dynamic mechanical analysis instrument (DYNAMIC MECHANICAL THERMAL ANALIZER): Rheogel-E4000) measure the storage elastic modulus E ' (stretch mode) (mensuration frequency 1Hz, 3 ℃/minute of programming rates) of-100 ℃～+ 100 ℃ temperature province.
The mensuration of the specific area of active material
The mensuration of the specific area of active material is implemented by BET method (method of Brunauer, Emmett and Teller) according to the method for JISZ8830 record.
The manufacturing of battery electrode use adhesive 1
Under nitrogen atmosphere in the polymerization reaction machine of resistance to pressure each monomer, uncle's lauryl mercaptan, neopelex, sodium acid carbonate, the pure water shown in the adding table 1 and be warming up to 70 ℃ after, add potassium peroxydisulfate and begin polymerization.Polymerization begins to stop polymerization after 8 hours, with lithium hydroxide aqueous solution pH is adjusted to 7.Then, remove unreacted monomer and other low-boiling compound by steam distillation, obtain to have the battery electrode use adhesive of the gel content shown in the table 1, storage elastic modulus E '.
The manufacturing of battery electrode use adhesive 2～7
Except kind and amount change as shown in table 1 with additive, operate similarly to Example 1, obtain battery electrode use adhesive 2～7.
[table 1]
Battery electrode is made with composition
With respect to Delanium 97 weight portions as the specific area shown in the table 2 of active material, mixing is with the carboxymethyl cellulose aqueous solution as thickener of solid component meter 1 weight portion, with the battery electrode use adhesive shown in the table 2 of solid component meter 2 weight portions, be that 45% ratio adds an amount of water mixing according to the total solid composition, make the battery electrode composition.
Making of electrode
The battery electrode of each embodiment, comparative example is coated Copper Foil as the thick 20 μ m of collector body with composition, 120 ℃ of dryings after 5 minutes, in room temperature with 8.6 * 10
5The linear load of N/m rolls and the acquisition electrode.
The mensuration of bonding force (180 ° of peel strengths)
The electrode slice of each embodiment and each comparative example is cut into the strip of 7cm * 2cm, use the steel plate of the bonding thick 1mm of double faced adhesive tape on the current collection side, paste adhesive tape in the coating layer side, the stress when mensuration is peeled off towards 180 ° of directions with 100mm/ minute speed with cupping machine.The results are shown in table 2.
The mensuration of the flexibility of electrode
The electrode slice of each embodiment and each comparative example being cut into the rectangle of 8cm * 2cm, doing (East Yang Jing Machine Co., Ltd. of institute with the smart mechanism of Toyo Co., Ltd.) pliability tester processed is with the bending resistance of slit width 5mm mensuration electrode slice.Estimate the numerical value of gained is following, show the result in table 2.
◎: resistance is lower than 60g.
Zero: resistance is more than 60g and be lower than 75g.
△: resistance is more than 75g and be lower than 90g.
*: resistance is more than 90g.
[table 2]
As shown in table 2, use the flexibility of the bonding force of electrode of battery electrode use adhesive of the present invention and electrode good.
In the comparative example 1, storage elastic modulus E ' exceeds scope, bonding force and the flexibility inequality of the application's regulation.
In the comparative example 2, gel content exceeds the upper limit of the scope of the application's regulation, and bonding force and flexibility are poor.
In the comparative example 3 and 5, gel content, storage elastic modulus E ' all exceed the upper limit of the scope of the application's regulation, and bonding force and flexibility are all significantly deteriorated.
In the comparative example 4, gel content is lower than the lower limit of the scope of the application's regulation, and bonding force is significantly deteriorated.
Industrial utilizability
As mentioned above, the battery electrode use adhesive of the application of the invention can obtain the good electrode of bonding strength and flexibility.Thereby, can obtain the good batteries of battery behavior such as high-multiplying-power discharge performance and charge/discharge cycle characteristics, very useful.
Claims (5)
1. battery electrode use adhesive is characterized in that, the gel content of desciccator diaphragm is 5～70%, and 95 ℃ storage elastic modulus is 1.6 * 10
3N/cm
2Below.
2. the battery electrode composition is characterized in that, comprising specific area is 0.05～100m
2The active material of/g, the gel content of desciccator diaphragm are that 5～70% and 95 ℃ storage elastic modulus is 1.6 * 10
3N/cm
2Following battery electrode use adhesive.
3. battery electrode composition as claimed in claim 2 is characterized in that, the specific area of described active material is 0.1～5m
2/ g.
4. battery electrode is characterized in that, comprising specific area by coating is 0.05～100m
2The active material of/g, the gel content of desciccator diaphragm are that 5～70% and 95 ℃ storage elastic modulus is 1.6 * 10
3N/cm
2The battery electrode of following battery electrode use adhesive is with composition and make it dry and obtain.
5. battery electrode as claimed in claim 4 is characterized in that, the specific area of described active material is 0.1～5m
2/ g.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012081756 | 2012-03-30 | ||
| JP2012-081756 | 2012-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103367752A true CN103367752A (en) | 2013-10-23 |
Family
ID=49368628
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101103265A Pending CN103367752A (en) | 2012-03-30 | 2013-03-29 | Binder for battery electrode, and composition and electrode containing said binder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6359242B2 (en) |
| KR (1) | KR102055452B1 (en) |
| CN (1) | CN103367752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280099A (en) * | 2018-11-08 | 2019-01-29 | 北京化工大学 | A kind of electroluminescent method for extracting latex |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105393388B (en) | 2013-07-24 | 2018-01-30 | 日本A&L株式会社 | Binding agent for electrode, composition for electrodes and electrode slice |
| WO2018180101A1 (en) | 2017-03-28 | 2018-10-04 | 日本ゼオン株式会社 | Binder composition for nonaqueous secondary battery electrodes, slurry composition for nonaqueous secondary battery electrodes, electrode for nonaqueous secondary batteries, nonaqueous secondary battery, and method for producing electrode for nonaqueous secondary batteries |
| CN110521038B (en) | 2017-04-19 | 2021-06-29 | 日本A&L株式会社 | Binder for electrode, composition for electrode, and electrode |
| KR102690257B1 (en) | 2018-10-24 | 2024-08-01 | 주식회사 엘지에너지솔루션 | Binder for lithium secondary, negative electrode of lithium secondary battery and lithium secondary battery comprising the same |
| WO2020242205A1 (en) * | 2019-05-28 | 2020-12-03 | 주식회사 엘지화학 | Electrode binder composition for rechargeable battery and electrode mixture including same |
| KR20230056486A (en) | 2021-10-20 | 2023-04-27 | 주식회사 엘지화학 | Electrode Assembly and Secondary Battery Comprising the Same |
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|---|---|---|---|---|
| JPH08250123A (en) * | 1995-03-07 | 1996-09-27 | Japan Synthetic Rubber Co Ltd | Aqueous binder for forming battery electrode |
| CN1500823A (en) * | 2002-11-13 | 2004-06-02 | �ն��繤��ʽ���� | Partially crosslinked adhesive-supported porous film for battery separator and its use |
| CN102167781A (en) * | 2010-02-26 | 2011-08-31 | 日本A&L株式会社 | Copolymer latex, producing method thereof and composition for paper coating |
| CN102203990A (en) * | 2009-12-25 | 2011-09-28 | 日本A&L株式会社 | Binder for secondary battery electrode |
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| JP2003308841A (en) * | 2002-04-16 | 2003-10-31 | Hitachi Powdered Metals Co Ltd | Slurry for forming negative electrode coating film of nonaqueous secondary battery |
| JP2008081643A (en) | 2006-09-28 | 2008-04-10 | Dainippon Ink & Chem Inc | Carbon binder |
| JPWO2010146832A1 (en) * | 2009-06-16 | 2012-11-29 | パナソニック株式会社 | Method for producing negative electrode for nonaqueous electrolyte secondary battery, negative electrode, and nonaqueous electrolyte secondary battery using the same |
| JP5574404B2 (en) * | 2009-07-16 | 2014-08-20 | Ｎｅｃエナジーデバイス株式会社 | Lithium ion secondary battery |
| JP5354205B2 (en) | 2009-12-22 | 2013-11-27 | 日本ゼオン株式会社 | Electrode for electrochemical element and electrochemical element |
| JP5707707B2 (en) * | 2010-02-25 | 2015-04-30 | 日立化成株式会社 | Negative electrode material for lithium ion secondary battery, negative electrode for lithium ion secondary battery using the negative electrode material, and lithium ion secondary battery |
| JP2012014929A (en) | 2010-06-30 | 2012-01-19 | Hitachi Vehicle Energy Ltd | Battery |
-
2013
- 2013-03-28 KR KR1020130033285A patent/KR102055452B1/en active IP Right Grant
- 2013-03-29 JP JP2013071411A patent/JP6359242B2/en active Active
- 2013-03-29 CN CN2013101103265A patent/CN103367752A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08250123A (en) * | 1995-03-07 | 1996-09-27 | Japan Synthetic Rubber Co Ltd | Aqueous binder for forming battery electrode |
| CN1500823A (en) * | 2002-11-13 | 2004-06-02 | �ն��繤��ʽ���� | Partially crosslinked adhesive-supported porous film for battery separator and its use |
| CN102203990A (en) * | 2009-12-25 | 2011-09-28 | 日本A&L株式会社 | Binder for secondary battery electrode |
| CN102167781A (en) * | 2010-02-26 | 2011-08-31 | 日本A&L株式会社 | Copolymer latex, producing method thereof and composition for paper coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280099A (en) * | 2018-11-08 | 2019-01-29 | 北京化工大学 | A kind of electroluminescent method for extracting latex |
| CN109280099B (en) * | 2018-11-08 | 2020-01-21 | 北京化工大学 | Method for electroextracting latex |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6359242B2 (en) | 2018-07-18 |
| JP2013229327A (en) | 2013-11-07 |
| KR20130111387A (en) | 2013-10-10 |
| KR102055452B1 (en) | 2020-01-22 |
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