CN103351448B - A kind of High-temperature resistance lithium ion secondary battery adhesive and preparation method - Google Patents
A kind of High-temperature resistance lithium ion secondary battery adhesive and preparation method Download PDFInfo
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- CN103351448B CN103351448B CN201310268867.0A CN201310268867A CN103351448B CN 103351448 B CN103351448 B CN 103351448B CN 201310268867 A CN201310268867 A CN 201310268867A CN 103351448 B CN103351448 B CN 103351448B
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 27
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000000853 adhesive Substances 0.000 title claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 12
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 12
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 12
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 8
- LVHBHZANLOWSRM-UHFFFAOYSA-N itaconic acid Chemical compound OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims abstract description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims abstract description 6
- ZWWQRMFIZFPUAA-UHFFFAOYSA-N dimethyl 2-methylidenebutanedioate Chemical compound COC(=O)CC(=C)C(=O)OC ZWWQRMFIZFPUAA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 5
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 5
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 4
- 150000003254 radicals Chemical class 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000011230 binding agent Substances 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910010710 LiFePO Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000003756 stirring Methods 0.000 description 6
- 239000006258 conductive agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 4
- 239000010405 anode material Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 description 1
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910000813 Li/LiFePO4 Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011530 conductive current collector Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- -1 vinylformic acid-silicon-oxygen Chemical compound 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Invention describes a kind of High-temperature resistance lithium ion secondary battery adhesive and preparation method.Adopt 2-acrylamide-2-methyl propane sulfonic salt, itaconate, dimethyl itaconate, MALEIC ANHYDRIDE and fumarate etc. are polymerization initial monomers, and be auxiliary agent with carboxymethyl cellulose salt, be polymerized under the condition that persulphate thermal free radical initiator causes, obtained uniform and stable electrode adhesive.Use electrode adhesive of the present invention, there is resistant to elevated temperatures advantage, be applicable to high power density and lithium ion battery with high energy density.
Description
Technical field
The present invention relates to a kind of High-temperature resistance lithium ion secondary battery adhesive and preparation method.
Background technology
Lithium-ion secondary cell is with its height ratio capacity, and high-voltage, the advantages such as volume is little, lightweight, without memory, recent two decades obtains huge development.Battery primarily of positive pole, negative pole, the composition such as barrier film and organic electrolyte; Positive and negative electrode is generally by powdery electroactive substance, as lithium metal oxide, carbon element negative material, tackiness agent, conductive agent and current collector composition, preparation method is active substance, conductive agent, binder solutions etc. mix and are ground to distributed slurry, coat on the collector electrode such as Copper Foil or aluminium foil, drying, the technique such as to roll and is prepared from.The operable tackiness agent of tackiness agent of lithium ion battery electrode material as, ethylene-propylene rubber(EPR), fluorine-containing polyolefine etc.Generally adopt expensive fluorinated polymkeric substance as the tackiness agent of cell positive material at present, if polyvinylidene difluoride (PVDF) (PVDF) etc. is (as Japanese Patent Laid-Open 7-220722,7-78056 and 7-78057), and using organic solvent N-Methyl pyrrolidone (NMP) as dispersion agent, be aided with a small amount of conductive agent, obtain the anode sizing agent of organic system.The positive pole oar material coating smoothness of organic system is low, and pole piece difficulty is dried, and has not only added cost but also the contaminate environment of manufacture.
In order to solve the problem, people also develop water adhesive of lithium ion battery, as acrylicstyrene polymkeric substance, and vinylformic acid-silicon-oxygen polymer, styrene-acrylate polymer (JP2000294230); Styrene-butadiene (JP2000106198); The waterborne polymeric latex such as butadiene-acrylonitrile polymer (EP100905), this base polymer viscosity is too low simultaneously containing more tensio-active agent, to processing and the battery performance generation adverse influence of battery plate.CN1328104A and CN1328102A etc. disclose vinylformic acid, acrylate, and the mode that the monomer copolymerization such as acrylamide and vinyl cyanide obtains emulsifier-free emulsion polymerization obtains having the aqueous binder of good adhesion.But power lithium-ion battery is in high power discharge process, and battery local temperature reaches 80-100 DEG C, also have 150 DEG C of thermal shockings once in a while, these all (comprise positive electrode material, negative material to whole battery system, barrier film, electrolytic solution and battery tackiness agent etc.) requirements at the higher level are proposed.Above-described material is as acrylamide, and the heat resistance of the multipolymer such as acrylate and vinyl cyanide does not also reach the requirement of above temperature, thus needs to adopt high temperature-resistant polymer material to develop and prepares resistant to elevated temperatures high performance adhesive.
Polyacrylamide polymer is important water treatment and oil field chemical, but its anti-shear stability is poor, pumping time mechano-degradation serious; Salt tolerance is poor, easily precipitates; High temperature resistant, acid resistance is poor.2-acrylamide-2-methyl propane sulfonic is novel acrylamide analog derivative, and fusing point, up to 185 DEG C, uses and do not degrade, have good stability under high temperature, high pressure, shear conditions, and 2-acrylamide-2-methyl propane sulfonic salt etc. has higher fusing point.Current AMPS has infiltrated the polymer modification of oil field chemical every field as effective modified monomer, solves salt resistance in oil recovery polymkeric substance, high temperature resistance, anti-shearing three large thorny problems very well.The object of the invention is the resistance to elevated temperatures based on 2-acrylamide-2-methyl propane sulfonic salt, prepare the battery tackiness agent of the excellent poly-2-acrylamide-2-methyl propane sulfonic salt of binding property, require in high lithium ion cell electrode preparation process for use in heat resistance.
The object of this invention is to provide a kind of High-temperature resistance lithium ion secondary battery positive electrode material tackiness agent.Another object of the present invention is to provide a kind of preparation method of high temperature resistant type battery material tackiness agent.
Summary of the invention
A kind of High-temperature resistance lithium ion secondary battery positive electrode material tackiness agent, it is characterized in that adopting 2-acrylamide-2-methyl propane sulfonic salt, itaconate, dimethyl itaconate, MALEIC ANHYDRIDE, three kinds of conduct polymerization initial monomers in fumarate monomer, and using carboxymethyl cellulose salt as auxiliary agent, be polymerized under the condition that persulphate thermal free radical initiator causes, obtained uniform and stable electrode adhesive.This binder ingredients adopts temperature resistance to form by higher monomer polymerization, is thus applicable to the higher lithium-ion secondary cell of the operating temperatures such as power cell, is particularly useful for the bonding of operating temperature lithium iron phosphate positive material under 80 ° of more than C conditions.
A kind of High-temperature resistance lithium ion secondary battery adhesive and preparation method, wherein said preparation method adopts 2-acrylamide-2-methyl propane sulfonic salt, itaconate, dimethyl itaconate, MALEIC ANHYDRIDE, three kinds of conduct polymerization initial monomers in fumarate monomer, and be auxiliary agent with carboxymethyl cellulose, Raolical polymerizable is carried out, obtained uniform and stable electrode adhesive under the condition that persulphate thermal free radical initiator causes.
In wherein said preparation method, the first monomer: second comonomer: the amount ratio of Third monomer is 40 ~ 60:30 ~ 35:5 ~ 30; First monomer, the total amount of second comonomer and Third monomer is 15 ~ 50% of tackiness agent total amount.
In wherein said preparation method, the molecular weight of carboxymethyl cellulose is greater than 800,000, and wherein the percentage composition of carboxymethyl cellulose is the 0.1-4% of total amount.
Water adhesive for electrode material of secondary lithium ion battery of the present invention, its bond properties, chemical property and application, with the method for this area routine, be namely assembled into button cell (2032 type) and carry out charge-discharge test investigation.Preparation and test process as follows:
First by 5.70 grams of positive active material LiFePO
4, 0.30 gram of conductive agent acetylene black mixes, and then adding 6.30 gram mass marks is again the binder solution of 5%, stirs and forms uniform positive pole slip.Be coated on uniformly on aluminium foil by this slip, then dry at 120 DEG C, roll-in, it is 12 millimeters that punching obtains radius, and thickness is the circular positive plate of 80 microns, wherein containing 17.6 milligrams of activeconstituents LiFePO
4.At the temperature of 120 degree after vacuum-drying, be placed in the glove box of dry argon gas atmosphere, Li/LiFePO4 button cell is dressed up respectively with metal lithium electrode matched group, electrolytic solution is 0.5MLiBOB/PC, barrier film adopts fibreglass diaphragm, battery charging and discharging is constant flow method, and charge condition is: 0.3-1.1mA/cm
2; Discharging current is 0.5-1.1mA/cm
2; Be that 2.50-4.00V(is to Li/Li by voltage range
+); Tested by the LAND discharge and recharge instrument of conputer controlled.
Battery resistance to elevated temperatures is tested
Testing method is as follows: be placed on by battery in 80 DEG C, baking oven, carry out 0.5C charge-discharge test, observes the change that cell container occurs with discharge and recharge number of times.
Accompanying drawing explanation
The first charge-discharge figure (testing under 80 ° of C conditions) of button cell is assembled after synthesizing high temperature type tackiness agent bonding lithium iron phosphate positive material in accompanying drawing 1 embodiment 1.
The volume change figure (testing under 80 ° of C conditions) of button cell is assembled after synthesizing high temperature type tackiness agent bonding lithium iron phosphate positive material in accompanying drawing 2 embodiment 1.
Embodiment
Here is embodiments of the invention.
Embodiment 1
Add 25 parts of 2-acrylamide-2-methyl propane sulfonic lithiums in the reactor, 15 parts of methylene-succinic acid lithiums, 5 parts of MALEIC ANHYDRIDE, 1 part of carboxymethyl cellulose lithium and 254 parts of distilled water, be be warmed up to 70 ° of C gradually under the stirring velocity of 150 revs/min at rotating speed, then add 0.6 part of ammonium persulfate initiator initiation reaction, reacted after 1 hour, obtained solids content is the lithium ion secondary battery anode material tackiness agent of 15%.
Embodiment 2
Add 25 parts of 2-acrylamide-2-methyl propane sulfonic lithiums in the reactor, 20 parts of dimethyl itaconates, 5 parts of MALEIC ANHYDRIDE, 1 part of carboxymethyl cellulose lithium and 254 parts of distilled water, be be warmed up to 70 ° of C gradually under the stirring velocity of 150 revs/min at rotating speed, then add 0.6 part of ammonium persulfate initiator initiation reaction, reacted after 1 hour, obtained solids content is the lithium ion secondary battery anode material tackiness agent of 15%.
Embodiment 3
Add 25 parts of 2-acrylamide-2-methyl propane sulfonic lithiums in the reactor, 20 parts of methylene-succinic acid lithiums, 5 parts of fumaric acid, 2 parts of carboxymethyl cellulose lithiums and 253 parts of distilled water, be be warmed up to 70 ° of C gradually under the stirring velocity of 150 revs/min at rotating speed, then add 0.6 part of ammonium persulfate initiator initiation reaction, reacted after 1 hour, obtained solids content is the lithium ion secondary battery anode material tackiness agent of 15%.
Embodiment 4
Add 25 parts of 2-acrylamide-2-methyl propane sulfonic lithiums in the reactor, 20 parts of dimethyl itaconates, 5 parts of MALEIC ANHYDRIDE, 2 parts of carboxymethyl cellulose lithiums and 253 parts of distilled water, be be warmed up to 70 ° of C gradually under the stirring velocity of 150 revs/min at rotating speed, then add 0.6 part of ammonium persulfate initiator initiation reaction, reacted after 1 hour, obtained solids content is the lithium ion secondary battery anode material tackiness agent of 15%.
The application of tackiness agent of the present invention in high temperature modification lithium ion battery.
Embodiment 5
5.70 grams of positive active material LiFePO
4, 0.30 gram of conductive agent acetylene black mixes, and then adding 6.30 gram mass marks in embodiment 1 is again the binder solution of 5%, stirs and forms uniform positive pole slip.Be coated on uniformly on aluminium foil by this slip, then dry at 120 DEG C, roll-in, it is 12 millimeters that punching obtains radius, and thickness is the circular positive plate of 80 microns, wherein containing 17.6 milligrams of activeconstituents LiFePO
4.At the temperature of 120 degree after vacuum-drying, be placed in the glove box of dry argon gas atmosphere, dress up Li/LiFePO with metal lithium electrode matched group respectively
4button cell, electrolytic solution is 0.5MLiBOB/PC, and barrier film adopts fibreglass diaphragm, is that 2.50-4.00V(is to Li/Li by voltage range
+).Be placed on by battery in 80 DEG C, baking oven, carry out 0.5C charge-discharge test, loading capacity is at more than 140mAh/g first to observe battery, and after 50 circulations, capacity still remains on more than 130mAh/g.
Claims (7)
1. the preparation method of a High-temperature resistance lithium ion secondary battery adhesive, it is characterized in that adopting 2-acrylamide-2-methyl propane sulfonic salt, itaconate, dimethyl itaconate, MALEIC ANHYDRIDE, three kinds in fumarate monomer as polymerization initial monomers, and be auxiliary agent with carboxymethyl cellulose salt, be polymerized under the condition that persulphate thermal free radical initiator causes, obtained uniform and stable electrode adhesive, wherein the first monomer: second comonomer: the amount ratio of Third monomer is 40 ~ 60:30 ~ 35:5 ~ 30.
2., according to the preparation method of the High-temperature resistance lithium ion secondary battery adhesive described in claim 1, wherein the first monomer, the amount of second comonomer and Third monomer is the 15-50% of tackiness agent total amount.
3., according to the preparation method of the High-temperature resistance lithium ion secondary battery adhesive described in claim 1, wherein carboxymethyl cellulose salt is auxiliary agent, and its molecular weight is greater than 800,000.
4., according to the preparation method of the High-temperature resistance lithium ion secondary battery adhesive described in claim 1, wherein the percentage composition of carboxymethyl cellulose salt is 0.1-4%.
5. the lithium ion secondary battery adhesive obtained according to the preparation method of the High-temperature resistance lithium ion secondary battery binding agent described in claim 1.
6. the LiFePO that makes of a lithium ion secondary battery adhesive according to claim 5
4positive plate.
7. a LiFePO according to claim 6
4positive plate assembles the high temp. lithium ionization cell obtained.
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CN104538634B (en) * | 2014-12-10 | 2017-04-12 | 南通瑞达电子材料有限公司 | Electrode binder and preparation method thereof |
CN111511820B (en) | 2017-12-22 | 2023-09-01 | 汉高股份有限及两合公司 | foaming composition |
EP3732261B1 (en) | 2017-12-29 | 2023-04-05 | Henkel AG & Co. KGaA | Acid resistant adhesive composition |
CN113169296B (en) * | 2018-11-30 | 2024-03-08 | 松下知识产权经营株式会社 | Negative electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery |
CN112467142A (en) * | 2020-11-25 | 2021-03-09 | 湖南高瑞电源材料有限公司 | Aqueous solution type lithium iron phosphate anode adhesive, preparation method and application thereof |
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CN102473917A (en) * | 2009-06-30 | 2012-05-23 | 日本瑞翁株式会社 | Electrode for secondary battery, and secondary battery |
CN102443089A (en) * | 2010-09-30 | 2012-05-09 | 日本A&L株式会社 | Copolymer latex, composition for battery electrode and composition for paper coating |
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