CN109874306B - 正极材料及其制备方法、正极和锂离子电池 - Google Patents
正极材料及其制备方法、正极和锂离子电池 Download PDFInfo
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- CN109874306B CN109874306B CN201880001131.8A CN201880001131A CN109874306B CN 109874306 B CN109874306 B CN 109874306B CN 201880001131 A CN201880001131 A CN 201880001131A CN 109874306 B CN109874306 B CN 109874306B
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- carbon
- positive electrode
- iron phosphate
- conductive agent
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- 239000010406 cathode material Substances 0.000 title claims description 45
- 238000002360 preparation method Methods 0.000 title claims description 29
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims description 16
- 229910001416 lithium ion Inorganic materials 0.000 title claims description 16
- 239000000463 material Substances 0.000 claims abstract description 144
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000006258 conductive agent Substances 0.000 claims abstract description 99
- 239000007774 positive electrode material Substances 0.000 claims abstract description 98
- DVATZODUVBMYHN-UHFFFAOYSA-K lithium;iron(2+);manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[Fe+2].[O-]P([O-])([O-])=O DVATZODUVBMYHN-UHFFFAOYSA-K 0.000 claims abstract description 94
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 81
- 239000011247 coating layer Substances 0.000 claims abstract description 21
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 10
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 9
- FRMOHNDAXZZWQI-UHFFFAOYSA-N lithium manganese(2+) nickel(2+) oxygen(2-) Chemical compound [O-2].[Mn+2].[Ni+2].[Li+] FRMOHNDAXZZWQI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 42
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 30
- 239000010405 anode material Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 28
- 230000004927 fusion Effects 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 10
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 10
- 239000002041 carbon nanotube Substances 0.000 claims description 10
- 239000010941 cobalt Substances 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 10
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 claims description 5
- 239000006230 acetylene black Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000003273 ketjen black Substances 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229910016571 AlcO2 Inorganic materials 0.000 claims description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 claims 1
- ZYXUQEDFWHDILZ-UHFFFAOYSA-N [Ni].[Mn].[Li] Chemical compound [Ni].[Mn].[Li] ZYXUQEDFWHDILZ-UHFFFAOYSA-N 0.000 claims 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 53
- 238000012360 testing method Methods 0.000 description 28
- 238000000576 coating method Methods 0.000 description 19
- 239000011230 binding agent Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 17
- 229910015645 LiMn Inorganic materials 0.000 description 16
- 229910019142 PO4 Inorganic materials 0.000 description 16
- 239000011572 manganese Substances 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 14
- 239000011267 electrode slurry Substances 0.000 description 13
- 229910013716 LiNi Inorganic materials 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 11
- 229910002991 LiNi0.5Co0.2Mn0.3O2 Inorganic materials 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 239000011164 primary particle Substances 0.000 description 9
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 8
- UBYFFBZTJYKVKP-UHFFFAOYSA-J [Mn+4].[O-]P([O-])(=O)OP([O-])([O-])=O Chemical compound [Mn+4].[O-]P([O-])(=O)OP([O-])([O-])=O UBYFFBZTJYKVKP-UHFFFAOYSA-J 0.000 description 8
- 239000008103 glucose Substances 0.000 description 8
- 238000000227 grinding Methods 0.000 description 8
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 8
- 229910052808 lithium carbonate Inorganic materials 0.000 description 8
- 239000002105 nanoparticle Substances 0.000 description 8
- 238000011056 performance test Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- 238000001694 spray drying Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000012298 atmosphere Substances 0.000 description 7
- 239000011883 electrode binding agent Substances 0.000 description 7
- 229910000398 iron phosphate Inorganic materials 0.000 description 7
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 7
- 238000010902 jet-milling Methods 0.000 description 7
- 230000010287 polarization Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000011076 safety test Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 229910015862 LiMn0.75Fe0.25PO4 Inorganic materials 0.000 description 4
- 229910015944 LiMn0.8Fe0.2PO4 Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000007086 side reaction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 229910016096 LiMn0.5Fe0.5PO4 Inorganic materials 0.000 description 3
- 229910015855 LiMn0.7Fe0.3PO4 Inorganic materials 0.000 description 3
- 229910011328 LiNi0.6Co0.2Mn0.2O2 Inorganic materials 0.000 description 3
- 229910015872 LiNi0.8Co0.1Mn0.1O2 Inorganic materials 0.000 description 3
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- BCNBMSZKALBQEF-UHFFFAOYSA-N 1,3-dimethylpyrrolidin-2-one Chemical compound CC1CCN(C)C1=O BCNBMSZKALBQEF-UHFFFAOYSA-N 0.000 description 2
- 229910015835 LiMn0.65Fe0.35PO4 Inorganic materials 0.000 description 2
- 229910015831 LiMn0.6Fe0.4PO4 Inorganic materials 0.000 description 2
- 229910002995 LiNi0.8Co0.15Al0.05O2 Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000011163 secondary particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002345 surface coating layer Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910015660 LiMn(1−x)FexPO4 Inorganic materials 0.000 description 1
- 229910000668 LiMnPO4 Inorganic materials 0.000 description 1
- 229910011628 LiNi0.7Co0.15Mn0.15O2 Inorganic materials 0.000 description 1
- 229910014125 LiNi1-y-zCoy Inorganic materials 0.000 description 1
- 229910003005 LiNiO2 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- DOCYQLFVSIEPAG-UHFFFAOYSA-N [Mn].[Fe].[Li] Chemical compound [Mn].[Fe].[Li] DOCYQLFVSIEPAG-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000006256 anode slurry Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003547 immunosorbent Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- CASZBAVUIZZLOB-UHFFFAOYSA-N lithium iron(2+) oxygen(2-) Chemical compound [O-2].[Fe+2].[Li+] CASZBAVUIZZLOB-UHFFFAOYSA-N 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000009783 overcharge test Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
-
- 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
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- 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
-
- 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)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
振实密度(g/mL) | |
实施例2 | 2.43 |
对比例2 | 2.26 |
实施例11 | 2.35 |
对比例11 | 2.10 |
实施例12 | 2.32 |
对比例12 | 1.90 |
实施例13 | 2.45 |
对比例13 | 2.30 |
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN2017107114026 | 2017-08-18 | ||
CN201710711402.6A CN107546379B (zh) | 2017-08-18 | 2017-08-18 | 磷酸锰铁锂-三元材料复合正极材料及其制备方法 |
PCT/CN2018/100811 WO2019034105A1 (zh) | 2017-08-18 | 2018-08-16 | 正极材料及其制备方法、正极和锂离子电池 |
Publications (2)
Publication Number | Publication Date |
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CN109874306A CN109874306A (zh) | 2019-06-11 |
CN109874306B true CN109874306B (zh) | 2022-05-20 |
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CN201880001131.8A Active CN109874306B (zh) | 2017-08-18 | 2018-08-16 | 正极材料及其制备方法、正极和锂离子电池 |
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Country Status (2)
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CN (2) | CN107546379B (zh) |
WO (1) | WO2019034105A1 (zh) |
Families Citing this family (46)
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CN108557792B (zh) * | 2018-01-29 | 2019-10-25 | 蒋央芳 | 一种包覆型磷酸锰铁的制备方法 |
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