CN112820873A - 一种聚合物包覆锂电池正极材料及其制备方法 - Google Patents
一种聚合物包覆锂电池正极材料及其制备方法 Download PDFInfo
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- CN112820873A CN112820873A CN202011631795.8A CN202011631795A CN112820873A CN 112820873 A CN112820873 A CN 112820873A CN 202011631795 A CN202011631795 A CN 202011631795A CN 112820873 A CN112820873 A CN 112820873A
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- Prior art keywords
- lithium
- polymer
- lithium battery
- positive electrode
- electrode material
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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 98
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 229920000642 polymer Polymers 0.000 title claims abstract description 67
- 239000007774 positive electrode material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000010405 anode material Substances 0.000 claims abstract description 27
- 238000005245 sintering Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 239000012298 atmosphere Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 3
- JXGGISJJMPYXGJ-UHFFFAOYSA-N lithium;oxido(oxo)iron Chemical compound [Li+].[O-][Fe]=O JXGGISJJMPYXGJ-UHFFFAOYSA-N 0.000 claims description 47
- 239000002033 PVDF binder Substances 0.000 claims description 31
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 30
- 239000011247 coating layer Substances 0.000 claims description 19
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 13
- 229920002472 Starch Polymers 0.000 claims description 12
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 12
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 12
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 12
- 239000008107 starch Substances 0.000 claims description 12
- 235000019698 starch Nutrition 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 claims description 4
- HFCVPDYCRZVZDF-UHFFFAOYSA-N [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O Chemical compound [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O HFCVPDYCRZVZDF-UHFFFAOYSA-N 0.000 claims description 4
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 claims description 4
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 23
- 239000011248 coating agent Substances 0.000 abstract description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000001569 carbon dioxide Substances 0.000 abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 11
- 230000008859 change Effects 0.000 description 8
- 239000013589 supplement Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000010406 cathode material Substances 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- CASZBAVUIZZLOB-UHFFFAOYSA-N lithium iron(2+) oxygen(2-) Chemical compound [O-2].[Fe+2].[Li+] CASZBAVUIZZLOB-UHFFFAOYSA-N 0.000 description 3
- 238000004626 scanning electron microscopy Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 229910004786 P-Li Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910004796 P—Li Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005184 irreversible process Methods 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
- H01M4/602—Polymers
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114447307A (zh) * | 2022-02-10 | 2022-05-06 | 湖北亿纬动力有限公司 | 一种复合正极材料及其制备方法和电化学储能装置 |
CN114759159A (zh) * | 2022-04-25 | 2022-07-15 | 湖北万润新能源科技股份有限公司 | 一种高活性铁酸锂的制备方法及高活性铁酸锂,其正极和电池 |
WO2022218212A1 (zh) * | 2021-04-12 | 2022-10-20 | 深圳市德方创域新能源科技有限公司 | 补锂添加剂及其制备方法与应用 |
WO2023245890A1 (zh) * | 2022-06-24 | 2023-12-28 | 广东邦普循环科技有限公司 | 一种正极材料及其制备方法与应用 |
Citations (5)
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CN102842712A (zh) * | 2012-09-26 | 2012-12-26 | 天津巴莫科技股份有限公司 | 包覆型钴酸锂正极材料的制备方法 |
CN105047876A (zh) * | 2015-07-06 | 2015-11-11 | 江西师范大学 | 一种高铁电池复合正极材料的制备方法 |
CN106058192A (zh) * | 2016-07-20 | 2016-10-26 | 南京航空航天大学 | 一种包覆改性锂离子电池层状正极材料及其制备方法 |
CN106784641A (zh) * | 2015-11-25 | 2017-05-31 | 湖南桑顿新能源有限公司 | 一种超临界流体和微波联用制备锂电正极材料nca的方法 |
CN106848241A (zh) * | 2017-02-27 | 2017-06-13 | 苏州大学 | 一种聚合物包覆锂离子电池电极材料的制备方法 |
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2020
- 2020-12-31 CN CN202011631795.8A patent/CN112820873B/zh active Active
Patent Citations (5)
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CN102842712A (zh) * | 2012-09-26 | 2012-12-26 | 天津巴莫科技股份有限公司 | 包覆型钴酸锂正极材料的制备方法 |
CN105047876A (zh) * | 2015-07-06 | 2015-11-11 | 江西师范大学 | 一种高铁电池复合正极材料的制备方法 |
CN106784641A (zh) * | 2015-11-25 | 2017-05-31 | 湖南桑顿新能源有限公司 | 一种超临界流体和微波联用制备锂电正极材料nca的方法 |
CN106058192A (zh) * | 2016-07-20 | 2016-10-26 | 南京航空航天大学 | 一种包覆改性锂离子电池层状正极材料及其制备方法 |
CN106848241A (zh) * | 2017-02-27 | 2017-06-13 | 苏州大学 | 一种聚合物包覆锂离子电池电极材料的制备方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022218212A1 (zh) * | 2021-04-12 | 2022-10-20 | 深圳市德方创域新能源科技有限公司 | 补锂添加剂及其制备方法与应用 |
CN114447307A (zh) * | 2022-02-10 | 2022-05-06 | 湖北亿纬动力有限公司 | 一种复合正极材料及其制备方法和电化学储能装置 |
CN114447307B (zh) * | 2022-02-10 | 2024-03-15 | 湖北亿纬动力有限公司 | 一种复合正极材料及其制备方法和电化学储能装置 |
CN114759159A (zh) * | 2022-04-25 | 2022-07-15 | 湖北万润新能源科技股份有限公司 | 一种高活性铁酸锂的制备方法及高活性铁酸锂,其正极和电池 |
CN114759159B (zh) * | 2022-04-25 | 2024-03-15 | 湖北万润新能源科技股份有限公司 | 一种高活性铁酸锂的制备方法及高活性铁酸锂,其正极和电池 |
WO2023245890A1 (zh) * | 2022-06-24 | 2023-12-28 | 广东邦普循环科技有限公司 | 一种正极材料及其制备方法与应用 |
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