CN103107332A - 一种低温性能优异的磷酸铁锂正极材料及其制备方法 - Google Patents
一种低温性能优异的磷酸铁锂正极材料及其制备方法 Download PDFInfo
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- CN103107332A CN103107332A CN2013100277611A CN201310027761A CN103107332A CN 103107332 A CN103107332 A CN 103107332A CN 2013100277611 A CN2013100277611 A CN 2013100277611A CN 201310027761 A CN201310027761 A CN 201310027761A CN 103107332 A CN103107332 A CN 103107332A
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- Prior art keywords
- lithium
- source compound
- iron phosphate
- lithium iron
- dry
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000007774 positive electrode material Substances 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims abstract description 140
- 150000001875 compounds Chemical class 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 21
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 229910052744 lithium Inorganic materials 0.000 claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 19
- ATEAWHILRRXHPW-UHFFFAOYSA-J iron(2+);phosphonato phosphate Chemical compound [Fe+2].[Fe+2].[O-]P([O-])(=O)OP([O-])([O-])=O ATEAWHILRRXHPW-UHFFFAOYSA-J 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 11
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 9
- ZDYUUBIMAGBMPY-UHFFFAOYSA-N oxalic acid;hydrate Chemical compound O.OC(=O)C(O)=O ZDYUUBIMAGBMPY-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 8
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 7
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 7
- 235000000396 iron Nutrition 0.000 claims description 7
- QQGWBRJQPRTJDA-UHFFFAOYSA-N [Li].CC(O)=O Chemical compound [Li].CC(O)=O QQGWBRJQPRTJDA-UHFFFAOYSA-N 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 claims description 6
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 claims description 5
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 5
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 5
- VJGJZVCKMKGZKS-UHFFFAOYSA-N iron;oxalic acid;hydrate Chemical compound O.[Fe].OC(=O)C(O)=O VJGJZVCKMKGZKS-UHFFFAOYSA-N 0.000 claims description 5
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- -1 Magnesium oxalate (1:1) dihydrate Chemical class 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 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 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000008103 glucose Substances 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 235000011007 phosphoric acid Nutrition 0.000 claims description 2
- 239000011295 pitch Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 17
- PWBXDCPGSHVVPB-UHFFFAOYSA-K [O-]P([O-])(=O)OP(=O)([O-])O.[Fe+2].[Li+] Chemical compound [O-]P([O-])(=O)OP(=O)([O-])O.[Fe+2].[Li+] PWBXDCPGSHVVPB-UHFFFAOYSA-K 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 1
- 238000001354 calcination Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 15
- 239000012299 nitrogen atmosphere Substances 0.000 description 9
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 8
- 238000007599 discharging Methods 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 238000010334 sieve classification Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000010405 anode material Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010416 ion conductor Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910001386 lithium phosphate Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000447 polyanionic polymer Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 1
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- 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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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103441269A (zh) * | 2013-08-05 | 2013-12-11 | 北大先行科技产业有限公司 | 一种焦磷酸锂/碳包覆磷酸铁锂复合材料及其制备方法 |
CN109390563A (zh) * | 2017-08-03 | 2019-02-26 | 宁德新能源科技有限公司 | 改性磷酸铁锂正极材料及其制备方法、正极片、锂二次电池 |
CN112670481A (zh) * | 2020-12-23 | 2021-04-16 | 沁新集团(天津)新能源技术研究院有限公司 | 磷酸铁锂改性材料及制备方法和使用该改性材料的锂电池 |
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WO2019159262A1 (ja) * | 2018-02-14 | 2019-08-22 | 富士通株式会社 | 正極材料、及びその製造方法、前記正極材料を用いた電池及びその製造方法、並びに前記電池を用いた電子機器 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103441269A (zh) * | 2013-08-05 | 2013-12-11 | 北大先行科技产业有限公司 | 一种焦磷酸锂/碳包覆磷酸铁锂复合材料及其制备方法 |
CN103441269B (zh) * | 2013-08-05 | 2016-08-17 | 北大先行科技产业有限公司 | 一种焦磷酸锂/碳包覆磷酸铁锂复合材料及其制备方法 |
CN109390563A (zh) * | 2017-08-03 | 2019-02-26 | 宁德新能源科技有限公司 | 改性磷酸铁锂正极材料及其制备方法、正极片、锂二次电池 |
CN109390563B (zh) * | 2017-08-03 | 2021-03-16 | 宁德新能源科技有限公司 | 改性磷酸铁锂正极材料及其制备方法、正极片、锂二次电池 |
CN112670481A (zh) * | 2020-12-23 | 2021-04-16 | 沁新集团(天津)新能源技术研究院有限公司 | 磷酸铁锂改性材料及制备方法和使用该改性材料的锂电池 |
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Denomination of invention: A lithium iron phosphate cathode material and its preparation method Effective date of registration: 20231019 Granted publication date: 20151014 Pledgee: Bank of China Limited Xining Huangzhong sub branch Pledgor: QINGHAI TAIFENG PULEAD LITHIUM-ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2023630000004 |