CN101399341B - 磷酸铁锂的电池正极材料制备方法 - Google Patents
磷酸铁锂的电池正极材料制备方法 Download PDFInfo
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- CN101399341B CN101399341B CN2007100773160A CN200710077316A CN101399341B CN 101399341 B CN101399341 B CN 101399341B CN 2007100773160 A CN2007100773160 A CN 2007100773160A CN 200710077316 A CN200710077316 A CN 200710077316A CN 101399341 B CN101399341 B CN 101399341B
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- lithium
- lifepo4
- ball milling
- positive material
- ball
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- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 13
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title abstract description 23
- 239000008187 granular material Substances 0.000 title description 2
- 238000005245 sintering Methods 0.000 claims abstract description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 5
- 239000010452 phosphate Substances 0.000 claims abstract description 5
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 3
- 238000000498 ball milling Methods 0.000 claims description 68
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 38
- 239000000203 mixture Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 23
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 238000012216 screening Methods 0.000 claims description 14
- 238000005303 weighing Methods 0.000 claims description 12
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 claims description 6
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 6
- 229910003002 lithium salt Inorganic materials 0.000 claims description 6
- 159000000002 lithium salts Chemical class 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- 229940062993 ferrous oxalate Drugs 0.000 claims description 3
- OWZIYWAUNZMLRT-UHFFFAOYSA-L iron(2+);oxalate Chemical compound [Fe+2].[O-]C(=O)C([O-])=O OWZIYWAUNZMLRT-UHFFFAOYSA-L 0.000 claims description 3
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 2
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 2
- MCDLETWIOVSGJT-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O.CC(O)=O MCDLETWIOVSGJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 2
- YNQRWVCLAIUHHI-UHFFFAOYSA-L dilithium;oxalate Chemical compound [Li+].[Li+].[O-]C(=O)C([O-])=O YNQRWVCLAIUHHI-UHFFFAOYSA-L 0.000 claims description 2
- 229940116007 ferrous phosphate Drugs 0.000 claims description 2
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 229910000155 iron(II) phosphate Inorganic materials 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 18
- 238000009818 secondary granulation Methods 0.000 abstract description 17
- 239000002131 composite material Substances 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 2
- 239000007774 positive electrode material Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 abstract 1
- VGYDTVNNDKLMHX-UHFFFAOYSA-N lithium;manganese;nickel;oxocobalt Chemical compound [Li].[Mn].[Ni].[Co]=O VGYDTVNNDKLMHX-UHFFFAOYSA-N 0.000 abstract 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 14
- 239000001307 helium Substances 0.000 description 8
- 229910052734 helium Inorganic materials 0.000 description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 8
- 239000010406 cathode material Substances 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 238000010532 solid phase synthesis reaction Methods 0.000 description 5
- 238000001354 calcination Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000011056 performance test 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
- 238000005516 engineering process Methods 0.000 description 3
- LBSANEJBGMCTBH-UHFFFAOYSA-N manganate Chemical compound [O-][Mn]([O-])(=O)=O LBSANEJBGMCTBH-UHFFFAOYSA-N 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 238000000975 co-precipitation Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910013553 LiNO Inorganic materials 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
Images
Classifications
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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
Abstract
Description
样品 | 1C放电容量/2C放电容量 | 1C放电容量/5C放电容量 |
对比例 | 95.95% | 94.55% |
实施例1 | 95.74% | 94.50% |
实施例2 | 95.64% | 93.45% |
实施例3 | 95.5% | 92.4% |
实施例4 | 96.5% | 93.78% |
实施例5 | 95.89% | 93.5% |
实施例6 | 95.5% | 93% |
实施例7 | 95.4% | 92.5% |
实施例8 | 96.23% | 92.9% |
实施例9 | 96.1% | 93.98% |
样品 | 振实密度g/cm3 |
对比例 实施例1 实施例2 实施例3 实施例4 实施例5 实施例6 实施例7 实施例8 实施例9 | 0.9~1.1 1.69 1.72 1.60 1.75 1.67 1.72 1.65 1..73 1.70 |
Claims (8)
Priority Applications (1)
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CN2007100773160A CN101399341B (zh) | 2007-09-25 | 2007-09-25 | 磷酸铁锂的电池正极材料制备方法 |
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CN2007100773160A CN101399341B (zh) | 2007-09-25 | 2007-09-25 | 磷酸铁锂的电池正极材料制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN101399341A CN101399341A (zh) | 2009-04-01 |
CN101399341B true CN101399341B (zh) | 2011-12-07 |
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CN2007100773160A Active CN101399341B (zh) | 2007-09-25 | 2007-09-25 | 磷酸铁锂的电池正极材料制备方法 |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102795611B (zh) * | 2011-05-26 | 2015-08-26 | 比亚迪股份有限公司 | 一种磷酸铁锂材料的制备方法及一种锂离子电池 |
CN103151521B (zh) * | 2013-02-22 | 2015-12-23 | 中国科学院过程工程研究所 | 一种锂离子电池正极材料及其制备方法 |
CN105355868A (zh) * | 2015-10-21 | 2016-02-24 | 湖州百成电池有限公司 | 一种新型铁锂和多元素电池制备方法 |
CN105226282B (zh) * | 2015-10-26 | 2018-05-04 | 开封大学 | 一种磷酸铁锂材料的制备工艺 |
CN114068919A (zh) * | 2020-08-06 | 2022-02-18 | 比亚迪股份有限公司 | 磷酸铁锂正极活性材料及其制备方法、正极片及电池 |
CN112047321A (zh) * | 2020-09-10 | 2020-12-08 | 江西智锂科技有限公司 | 一种制备复合磷酸盐锂电池正极材料的方法 |
CN113086959B (zh) * | 2021-02-26 | 2022-03-01 | 云南航开科技有限公司 | 高压实低温型磷酸铁锂材料、锂电池正极片及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1767238A (zh) * | 2005-11-15 | 2006-05-03 | 厦门大学 | 磷酸铁锂正极材料及其制备方法 |
CN1785799A (zh) * | 2005-12-23 | 2006-06-14 | 清华大学 | 过渡元素掺杂磷酸铁锂粉体的制备方法 |
CN1874047A (zh) * | 2005-03-18 | 2006-12-06 | 三洋电机株式会社 | 非水电解质二次电池 |
-
2007
- 2007-09-25 CN CN2007100773160A patent/CN101399341B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1874047A (zh) * | 2005-03-18 | 2006-12-06 | 三洋电机株式会社 | 非水电解质二次电池 |
CN1767238A (zh) * | 2005-11-15 | 2006-05-03 | 厦门大学 | 磷酸铁锂正极材料及其制备方法 |
CN1785799A (zh) * | 2005-12-23 | 2006-06-14 | 清华大学 | 过渡元素掺杂磷酸铁锂粉体的制备方法 |
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