CN207852804U - A kind of based lithium-ion battery positive plate - Google Patents
A kind of based lithium-ion battery positive plate Download PDFInfo
- Publication number
- CN207852804U CN207852804U CN201820176653.9U CN201820176653U CN207852804U CN 207852804 U CN207852804 U CN 207852804U CN 201820176653 U CN201820176653 U CN 201820176653U CN 207852804 U CN207852804 U CN 207852804U
- Authority
- CN
- China
- Prior art keywords
- ion battery
- positive plate
- high molecular
- battery positive
- based lithium
- Prior art date
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 83
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 238000000576 coating method Methods 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000011149 active material Substances 0.000 claims abstract description 16
- 239000006258 conductive agent Substances 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 239000006229 carbon black Substances 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 229910017052 cobalt Inorganic materials 0.000 claims description 11
- 239000010941 cobalt Substances 0.000 claims description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 3
- 229920001651 Cyanoacrylate Polymers 0.000 claims description 3
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000003273 ketjen black Substances 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000001856 Ethyl cellulose Substances 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000006230 acetylene black Substances 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 229910021383 artificial graphite Inorganic materials 0.000 claims description 2
- 239000002134 carbon nanofiber Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 229920001249 ethyl cellulose Polymers 0.000 claims description 2
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000011133 lead Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 239000002135 nanosheet Substances 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 229920001289 polyvinyl ether Polymers 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 40
- 239000007774 positive electrode material Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 24
- 239000008367 deionised water Substances 0.000 description 20
- 229910021641 deionized water Inorganic materials 0.000 description 20
- 238000004064 recycling Methods 0.000 description 19
- 238000003756 stirring Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 18
- 229920001940 conductive polymer Polymers 0.000 description 17
- 235000019241 carbon black Nutrition 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000002699 waste material Substances 0.000 description 9
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000002604 ultrasonography Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000011888 foil Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 235000021355 Stearic acid Nutrition 0.000 description 3
- 238000007605 air drying Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000008117 stearic acid Substances 0.000 description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- NLCKLZIHJQEMCU-UHFFFAOYSA-N cyano prop-2-enoate Chemical class C=CC(=O)OC#N NLCKLZIHJQEMCU-UHFFFAOYSA-N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 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)
Abstract
The utility model is related to a kind of based lithium-ion battery positive plates, including trilaminate material, include successively from top to bottom active material layer, aqueous high molecular conductive coating and plus plate current-collecting body, each component percentage is in aqueous high molecular conductive coating：The content of surfactant is 0.1 10wt%, and the content of conductive agent is 15 70wt%, and the content of aqueous high molecular compound is 0.2 50wt%, and the content of binder is 0 8wt%.The utility model is simple in structure, compact to design, and the setting of aqueous high molecular conductive coating can make the separation of plus plate current-collecting body and positive active material pass through water logging and wash to can reach quickly and easily to detach, quickly pollution-free.
Description
Technical field
The utility model is related to a kind of based lithium-ion battery positive plates, belong to battery material technical field.
Background technology
The development of portable electronic device makes lithium ion battery have a wide range of applications, and due to the use of the limitation in service life
Produce a large amount of waste and old lithium ion battery；And in recent years, with the development of new-energy automobile industry, a large amount of lithium ion power electricity
The echelon in pond will also face discarded problem after utilizing.Contain rare metal, organic principle and modeling in waste and old lithium ion battery
Material, rationally to utilize resource and preserving the ecological environment, lithium ion battery recycling has significant economy and environmental benefit.
The positive active material of lithium ion battery contains the valuable metals such as nickel, cobalt, manganese, lithium, no matter takes which kind of technique,
In lithium ion battery recycling, the recycling of positive active material and plus plate current-collecting body is all extremely important.Current main stream approach be by
High-temperature calcination after the battery core mechanical crushing of waste and old lithium ion battery obtains the material containing valuable metals such as cobalt, nickel, copper and aluminium, then
It carries out screening or separated and dissolved goes out valuable metal.Patent CN101921917B, which discloses a kind of recycled from waste and old lithium ion battery, to be had
The method of valence metal, the patent by the waste and old lithium ion battery mechanical crushing after electric discharge, 350-400 DEG C of high temperature calcine containing cobalt,
The material of copper and aluminium is filtered out containing cobalt, copper material after being subsequently added into the NaOH solution of 5%-10%, is obtained containing aluminum solutions；To containing cobalt, copper
Material certain density sulfuric acid and Na is added2S2O3Bonus point is not sequentially added into corresponding extractant extraction copper, cobalt after dissolving
Into the recycling of row metal.
Patent CN101217206A discloses the high efficient stripping method of collector in a kind of recycling of waste and old lithium ion battery, will
After being heat-treated after waste and old lithium ion battery Mechanical Crushing, sieve top is divided into copper sheet and aluminium flake, lower part of screen be divided into cobalt acid lithium and
Carbon dust.Patent CN104157926A discloses a kind of lithium ion battery recovery process, using to being substantially discharged after saline sook
Lithium ion battery carry out wet impact crushing, broken slurry passes sequentially through varigrained sieve, and subregion is enriched with
It prepares for recycling.Fragment by above-mentioned granularity more than 0.250mm is added to the alkali leaching that a period of time is carried out in NaOH solution,
Obtain filtrate and filter residue.Filter residue is subjected to two sections of alkali leachings, gained filter residue enters subsequent processing and is added after two sections of filtrates merge
H2SO4Solution tune PH obtains aluminum hydroxide precipitation for 8 and recycles aluminium.It is that 0.075-0.125mm breakdown products are added to by above-mentioned granularity
H2SO4And Na2S2O3It is dissolved in solution, organic extractant P is added507After extraction and separation cobalt, nickel and lithium, load organic phases are used
The H of 180g/L2SO4Back extraction, obtained material liquid prepare positive electrode and achieve the purpose that recycling again.
In above-mentioned recycling separation method, first have to carry out Mechanical Crushing to the battery core of waste and old lithium ion battery, then into
It is sieved or is leached after row high-temperature heat treatment, then soak the method recycling aluminium of reprecipitation by alkali, finally by organic extractant
Extraction and recovery valuable metal.Method mechanical strength is big, and energy consumption is high, and processing step is complicated, has pollution to environment using organic solvent,
It is unfavorable for large-scale recovery processing and reduces cost recovery.
Invention content
Purpose of the utility model is to solve the above problem, provide one kind can efficiently separate plus plate current-collecting body with
The based lithium-ion battery positive plate of positive active material.
The utility model adopts the following technical solution：A kind of based lithium-ion battery positive plate, including trilaminate material, from top to bottom
Include successively active material layer, aqueous high molecular conductive coating and plus plate current-collecting body, it is each in the aqueous high molecular conductive coating
Component percentage is：The content of surfactant is 0.1-10 wt %, and the content of conductive agent is 15-70 wt %,
The content of aqueous high molecular compound is 0.2-50 wt %, and the content of binder is 0-8 wt %.
Further, the thickness of the aqueous high molecular conductive coating is 0.1-20 μm
Further, the surfactant be oleic acid, stearic acid, neopelex, dodecyl sodium sulfate,
One or more of lauryl sodium sulfate, cetyl trimethylammonium bromide, polyacrylic acid.
Further, the conductive agent is artificial graphite, natural graphite, graphene, Ketjen black, acetylene black, carbon black, carbon are received
One or more of mitron, carbon nanosheet, carbon nano-fiber.
Further, the conductive agent is one or more of copper, nickel, cobalt, iron, silver, platinum, lead, tin.
Further, the aqueous high molecular compound is polyvinylpyrrolidone, carboxymethyl cellulose, Methyl cellulose
One or more of element, ethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, polyethylene glycol, polyacrylamide.
Further, the binder is Kynoar, Kynoar-hexafluoropropene, polytetrafluoroethylene (PTFE), tertiary alkyl
One or more of polyalcohol polyvinylether, epoxy resin, polyimides, cyanoacrylate, polyurethane.
The preparation method of based lithium-ion battery positive plate, includes the following steps：
（1）Surfactant is added in deionized water, it is equal to be subsequently added into conductive agent ultrasonic disperse to uniform for ultrasonic disperse
It is even；
（2）Aqueous high molecular compound and binder are added in deionized water, stirring at normal temperature 1-6 hours, are uniformly mixed
After be added to step（1）In conductive agent mixed liquor in, stirring 0.5-5 hour, simultaneously ultrasonic disperse uniformly obtains aqueous high score
Subconductivity coating；
（3）By step（2）Aqueous high molecular conductive coating be coated in anode current collector of lithium ion battery on；
（4）By the collector after film temperature be 30-80 DEG C of drying；
（5）By positive active material, carbon black and Kynoar by weight 80~90:8~12:3~7 mixing, and
It is coated uniformly on aqueous high molecular conductive coating upper layer and obtains based lithium-ion battery positive plate.
Further, the frequency of the ultrasonic disperse is 20-100Hz.
The utility model is simple in structure, compact to design, and aqueous high molecular conductive coating is arranged on a current collector, is capable of providing
Static conductive ability and micro-current is collected, reduce the resistance between positive active material and collector and improves between the two attached
Put forth effort, to reduce the dosage of binder, and plays the role of preventing oxidation and etch-proof to collector；It can also make positive collection
The separation of fluid and positive active material is washed to can reach by water logging and quickly and easily be detached, and method is simple and effective, quick nothing
Pollution；The removal process of waste and old lithium ion battery is not necessarily to mechanical crushing and high-temperature calcination, saves energy consumption, reduces cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the based lithium-ion battery positive plate of the utility model.
Fig. 2 is the lithium-ion button battery of the utility model property of water-bearing conductive polymer coating cycle under 1C multiplying powers time
Number-specific discharge capacity test chart；Battery-active anode：Nickel-cobalt lithium manganate material（NCM622 materials）.
Fig. 3 is water-soluble point of the property of water-bearing conductive polymer coating positive plate in lithium ion battery recycling and conventional cathode piece
From comparison diagram.
Reference numeral：Active material layer 1, aqueous high molecular conductive coating 2, plus plate current-collecting body 3.
Specific implementation mode
As shown in Figure 1, based lithium-ion battery positive plate includes trilaminate material, includes from top to bottom active material layer, water successively
Property conductive polymer coating and plus plate current-collecting body.
Embodiment one：
The preparation method of based lithium-ion battery positive plate：
A, 0.3g oleic acid is added in deionized water, is dispersed to uniformly with the frequency ultrasound of 20Hz, is subsequently added into 3g carbon blacks
Ultrasonic disperse is uniform；
B, 1.5g carboxymethyl celluloses and 0.2g epoxy resin are added in deionized water, stirring at normal temperature 2 hours, mixing
It is added in the carbon black mixed liquor in step a after uniformly, stirs 0.5 hour and ultrasonic disperse is at uniform thick slurry；
C, the thick slurry of step b is uniformly coated in aluminum foil of anode current collector of lithium ion battery；
D, the collector after film is subjected to forced air drying；
E, nickle cobalt lithium manganate active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form positive material
Slurry liquid, and based lithium-ion battery positive plate is obtained on the aqueous high molecular conductive coating being coated uniformly in step d, and then assemble
It is tested at lithium ion battery button cell.
The recycling of lithium ion battery：
The lithium ion battery of above-mentioned assembling is split first, by positive plate taking-up be put into deionized water, concussion or
Stirring 5 minutes, after positive electrode is detached from collector, sieving goes out plus plate current-collecting body recycling, and remaining positive electrode will be gone successively to down
One process recycles valuable metal.
Embodiment two：
The preparation method of based lithium-ion battery positive plate：
A, 0.4g neopelexes are added in deionized water, are dispersed to uniformly, are connect with the frequency ultrasound of 40Hz
It is uniform addition 3g Ketjen black ultrasonic disperses；
B, 1.35g polyvinylpyrrolidones and 0.25g polyurethane are added in deionized water, stirring at normal temperature 2 hours, are mixed
It is added in the conductive agent mixed liquor in step a after closing uniformly, stirs 1 hour and ultrasonic disperse is at uniform sticky slurry
Liquid；
C, the thick slurry of step b is uniformly coated in aluminum foil of anode current collector of lithium ion battery；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after the collector after film being carried out forced air drying just
Pole collector；
E, LiFePO 4 active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form positive material
Slurry liquid, and obtain the lithium of property of water-bearing conductive polymer coating on the aqueous high molecular conductive coating being coated uniformly in step d
Ion battery positive plate, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Embodiment three：
The preparation method of based lithium-ion battery positive plate：
A, 0.3g neopelexes are added in deionized water, are dispersed to uniformly, are connect with the frequency ultrasound of 40Hz
It is uniform addition 2.5g carbon nanotube ultrasonic disperses；
B, 2g polyacrylamides and 0.2g polyacrylate are added in deionized water, stirring at normal temperature 3 hours, are uniformly mixed
It is added to afterwards in the conductive agent mixed liquor in step a, stirs 1.5 hours and ultrasonic disperse is at uniform thick slurry；
C, the thick slurry of step b is uniformly coated on anode current collector of lithium ion battery stainless steel foil；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after being dried in vacuo the collector after film just
Pole collector；
E, spinel lithium manganate active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form anode
Material slurry, and property of water-bearing conductive polymer coating is obtained on the aqueous high molecular conductive coating being coated uniformly in step d
Based lithium-ion battery positive plate, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Example IV：
The preparation method of based lithium-ion battery positive plate：
A, 0.4g stearic acid is added in deionized water, is dispersed to uniformly with the frequency ultrasound of 50Hz, is subsequently added into 3g people
It is uniform to make graphite ultrasonic disperse；
B, 1.45g polyvinyl alcohol and 0.15g Kynoar are added in deionized water, stirring at normal temperature 4 hours, mixing
It is added in the conductive agent mixed liquor in step a after uniformly, stirs 3 hours and ultrasonic disperse is at uniform thick slurry；
C, the thick slurry of step b is uniformly coated on the carbon containing aluminium foil of anode current collector of lithium ion battery；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after being dried in vacuo the collector after film just
Pole collector；
E, nickel cobalt lithium aluminate active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form positive material
Slurry liquid, and obtain the lithium of property of water-bearing conductive polymer coating on the aqueous high molecular conductive coating being coated uniformly in step d
Ion battery positive plate, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Embodiment five：
The preparation method of based lithium-ion battery positive plate：
A, 0.3g cetyl trimethylammonium bromides are added in deionized water, are dispersed to the frequency ultrasound of 60Hz
It is even, it is uniform to be subsequently added into 3g Nanometer Copper powder ultrasonic disperses；
B, 1.6g hydroxyethyl celluloses and 0.1g epoxy resin are added in deionized water, stirring at normal temperature 4.5 hours, mixing
It is added in the conductive agent mixed liquor in step a after uniformly, stirs 1.5 hours and ultrasonic disperse is at uniform sticky slurry
Liquid；
C, the thick slurry of step b is uniformly coated on anode current collector of lithium ion battery stainless steel foil；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after the collector after film being carried out forced air drying just
Pole collector；
E, cobalt acid lithium active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form positive electrode slurry
Liquid, and obtain the lithium ion of property of water-bearing conductive polymer coating on the aqueous high molecular conductive coating being coated uniformly in step d
Battery anode slice, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Embodiment six：
The preparation method of based lithium-ion battery positive plate：
A, 0.3g lauryl sodium sulfate is added in deionized water, is dispersed to uniformly, then with the frequency ultrasound of 80Hz
It is uniform that 2.7g nano nickel powder ultrasonic disperses are added；
B, 1.85g hydroxyethyl celluloses and 0.15g Kynoar-hexafluoropropene are added in deionized water, room temperature stirs
It mixes 5 hours, is added to after mixing in the conductive agent mixed liquor in step a, stir 3 hours and ultrasonic disperse is at uniform
Thick slurry；
C, the thick slurry of step b is uniformly coated on the carbon containing aluminium foil of anode current collector of lithium ion battery；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after being dried in vacuo the collector after film just
Pole collector；
E, lithium-rich LiMn2O4 active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form just
Pole material slurry, and property of water-bearing conductive polymer coating is obtained on the aqueous high molecular conductive coating being coated uniformly in step d
Based lithium-ion battery positive plate, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Embodiment seven：
The preparation method of based lithium-ion battery positive plate：
A, 0.5g stearic acid is added in deionized water, is dispersed to uniformly with the frequency ultrasound of 100Hz, is subsequently added into 3g people
It is uniform to make graphite ultrasonic disperse；
B, 1.5g polyvinylpyrrolidones are added in deionized water, stirring at normal temperature 5 hours is added to step after mixing
In conductive agent mixed liquor in rapid a, stirs 3 hours and ultrasonic disperse is at uniform thick slurry；
C, the thick slurry of step b is uniformly coated on anode current collector of lithium ion battery stainless steel foil；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after being dried in vacuo the collector after film just
Pole collector；
E, lithium-rich LiMn2O4 active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form just
Pole material slurry, and property of water-bearing conductive polymer coating is obtained on the aqueous high molecular conductive coating being coated uniformly in step d
Based lithium-ion battery positive plate, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Embodiment eight：
The preparation method of based lithium-ion battery positive plate：
A, 0.3g polyacrylic acid is added in deionized water, is dispersed to uniformly, is subsequently added into the frequency ultrasound of 80Hz
2.5g nano silver powder ultrasonic disperse is uniform；
B, 1.8g hydroxyethyl celluloses and 0.4g cyanoacrylates are added in deionized water, stirring at normal temperature 4 hours, are mixed
It is added in the conductive agent mixed liquor in step a after closing uniformly, stirs 2 hours and ultrasonic disperse is at uniform sticky slurry
Liquid；
C, the thick slurry of step b is uniformly coated in aluminum foil of anode current collector of lithium ion battery；
D, the lithium ion battery of property of water-bearing conductive polymer coating is being obtained after being dried in vacuo the collector after film just
Pole collector；
E, nickle cobalt lithium manganate active material, carbon black, Kynoar and N-Methyl pyrrolidone are mixed to form positive material
Slurry liquid, and obtain the lithium of property of water-bearing conductive polymer coating on the aqueous high molecular conductive coating being coated uniformly in step d
Ion battery positive plate, and then be assembled into lithium ion battery button cell and tested.
The recycling of lithium ion battery：
Method is the same as embodiment 1.
Fig. 2 is to add the lithium that the positive plate of aqueous high molecular conductive coating is further assembled into the embodiment of the present invention one
The performance curve of ion battery.As shown in Figure 2, under 1C multiplying powers, the method for the present invention is utilized by active material of NCM622 materials
The specific discharge capacity for the lithium ion battery that the positive plate of preparation is assembled into is in 162mAh/g or more, and 100 cyclic curves are basic
It is straight line, special capacity fade is seldom, and performance is better compared to relatively normal commercially available NCM622 materials.
In Fig. 3, left figure is the positive plate that is prepared of embodiment one, right figure be without aqueous high molecular conductive coating just
The comparison photo after deionized water vibrates 1-5 minutes is added at room temperature in pole piece, as seen from the figure, due to aqueous high molecular conduction
Coating hydrophilic is good, and the collector of positive plate of the left figure containing coating has been detached with active material layer, without property of water-bearing macromolecule
The conventional cathode piece of conductive layer, active material still adhere on a current collector, thus comparative illustration the method for the invention system
Standby based lithium-ion battery positive plate later stage removal process is simple and quick.
Claims (7)
1. a kind of based lithium-ion battery positive plate, it is characterised in that：Include from top to bottom active material layer successively including trilaminate material
（1）, aqueous high molecular conductive coating（2）And plus plate current-collecting body（3）, each component is by weight in the aqueous high molecular conductive coating
Percentage is calculated as：The content of surfactant is 0.1-10 wt %, and the content of conductive agent is 15-70 wt %, aqueous high molecular
The content of compound is 0.2-50 wt %, and the content of binder is 0-8 wt %.
2. based lithium-ion battery positive plate as described in claim 1, it is characterised in that：The thickness of the aqueous high molecular conductive coating
Degree is 0.1-20 μm.
3. based lithium-ion battery positive plate as described in claim 1, it is characterised in that：The surfactant is oleic acid, tristearin
Acid, neopelex, dodecyl sodium sulfate, lauryl sodium sulfate, cetyl trimethylammonium bromide, polypropylene
One or more of acid.
4. based lithium-ion battery positive plate as described in claim 1, it is characterised in that：The conductive agent is artificial graphite, naturally
One or more of graphite, graphene, Ketjen black, acetylene black, carbon black, carbon nanotube, carbon nanosheet, carbon nano-fiber.
5. based lithium-ion battery positive plate as described in claim 1, it is characterised in that：The conductive agent be copper, nickel, cobalt, iron,
One or more of silver, platinum, lead, tin.
6. based lithium-ion battery positive plate as described in claim 1, it is characterised in that：The aqueous high molecular compound is poly- second
Alkene pyrrolidone, carboxymethyl cellulose, methylcellulose, ethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, polyethylene glycol,
One or more of polyacrylamide.
7. based lithium-ion battery positive plate as described in claim 1, it is characterised in that：The binder is Kynoar, gathers
Biasfluoroethylene-hexafluoropropylene, polytetrafluoroethylene (PTFE), tertiary alkyl polyalcohol polyvinylether, epoxy resin, polyimides, cyanoacrylate
The one or more of acid esters, polyurethane.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449442A (en) * | 2018-10-25 | 2019-03-08 | 贵州梅岭电源有限公司 | A kind of composite electron conductive agent of thermal cell positive electrode |
| CN109817890A (en) * | 2019-01-25 | 2019-05-28 | 东莞市创明电池技术有限公司 | The preparation method of lithium ion battery positive electrode |
-
2018
- 2018-02-01 CN CN201820176653.9U patent/CN207852804U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449442A (en) * | 2018-10-25 | 2019-03-08 | 贵州梅岭电源有限公司 | A kind of composite electron conductive agent of thermal cell positive electrode |
| CN109449442B (en) * | 2018-10-25 | 2021-08-27 | 贵州梅岭电源有限公司 | Composite electronic conductive agent for thermal battery anode material |
| CN109817890A (en) * | 2019-01-25 | 2019-05-28 | 东莞市创明电池技术有限公司 | The preparation method of lithium ion battery positive electrode |
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