CN107623122A - 一种锂电池用球形核壳结构磷酸铁锂正极材料的制备方法 - Google Patents
一种锂电池用球形核壳结构磷酸铁锂正极材料的制备方法 Download PDFInfo
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- CN107623122A CN107623122A CN201710969640.7A CN201710969640A CN107623122A CN 107623122 A CN107623122 A CN 107623122A CN 201710969640 A CN201710969640 A CN 201710969640A CN 107623122 A CN107623122 A CN 107623122A
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- China
- Prior art keywords
- parts
- lithium
- preparation
- lifepo4
- iron phosphate
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- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 42
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 40
- 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 40
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052493 LiFePO4 Inorganic materials 0.000 claims abstract description 69
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000011258 core-shell material Substances 0.000 claims abstract description 36
- 239000011806 microball Substances 0.000 claims abstract description 34
- 239000004005 microsphere Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 238000007720 emulsion polymerization reaction Methods 0.000 claims abstract description 12
- 239000012298 atmosphere Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 70
- 229910052757 nitrogen Inorganic materials 0.000 claims description 35
- 238000013019 agitation Methods 0.000 claims description 33
- 239000003643 water by type Substances 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910021389 graphene Inorganic materials 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 238000012869 ethanol precipitation Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 11
- 235000019394 potassium persulphate Nutrition 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 10
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 10
- 239000013049 sediment Substances 0.000 claims description 10
- 230000002459 sustained effect Effects 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910000318 alkali metal phosphate Inorganic materials 0.000 claims description 9
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 9
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 9
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- 235000021317 phosphate Nutrition 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910003002 lithium salt Inorganic materials 0.000 claims description 4
- 159000000002 lithium salts Chemical class 0.000 claims description 4
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 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
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004945 emulsification Methods 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 9
- 239000010405 anode material Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- -1 ferrous nitrates Chemical class 0.000 description 15
- 239000000178 monomer Substances 0.000 description 9
- 239000012299 nitrogen atmosphere Substances 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 229940077388 benzenesulfonate Drugs 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 125000005909 ethyl alcohol group Chemical group 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- ONJMNXFNTYIEEA-UHFFFAOYSA-N benzene ethene Chemical compound C1=CC=CC=C1.C=C.C=C.C=C ONJMNXFNTYIEEA-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
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- Battery Electrode And Active Subsutance (AREA)
Abstract
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Cited By (2)
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CN110518226A (zh) * | 2019-09-10 | 2019-11-29 | 石家庄尚太科技有限公司 | 一种硅碳复合负极材料及其制备方法 |
CN113130846A (zh) * | 2021-04-26 | 2021-07-16 | 南昌工程学院 | 一种二次电池正极材料及其电池 |
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CN102173403A (zh) * | 2011-01-25 | 2011-09-07 | 山东省科学院能源研究所 | 锂离子电池正极材料微纳米磷酸铁锂的制备方法 |
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CN103367724A (zh) * | 2013-07-26 | 2013-10-23 | 烟台卓能电池材料有限公司 | 一种核壳结构的磷酸铁锂电池材料及其制备方法 |
CN104091934A (zh) * | 2014-07-17 | 2014-10-08 | 深圳市贝特瑞新能源材料股份有限公司 | 一种多元复合负极材料、其制备方法及包含其的锂离子电池 |
CN104157840A (zh) * | 2014-08-15 | 2014-11-19 | 南京师范大学 | 一种锂离子电池用石墨烯包覆二氧化硅纳米管复合负极材料的制备方法 |
CN104934608A (zh) * | 2015-04-13 | 2015-09-23 | 青岛科技大学 | 一种石墨烯原位包覆锂离子电池正极材料的制备方法 |
CN105845921A (zh) * | 2016-05-23 | 2016-08-10 | 无锡市嘉邦电力管道厂 | 一种石墨烯硅酸锰锂正极材料的制备方法 |
-
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- 2017-10-18 CN CN201710969640.7A patent/CN107623122B/zh active Active
Patent Citations (7)
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CN102173403A (zh) * | 2011-01-25 | 2011-09-07 | 山东省科学院能源研究所 | 锂离子电池正极材料微纳米磷酸铁锂的制备方法 |
CN103346323A (zh) * | 2013-06-26 | 2013-10-09 | 湖北大学 | 一种以聚苯乙烯微球和聚乙二醇为碳源的碳包覆磷酸铁锂材料的制备方法 |
CN103367724A (zh) * | 2013-07-26 | 2013-10-23 | 烟台卓能电池材料有限公司 | 一种核壳结构的磷酸铁锂电池材料及其制备方法 |
CN104091934A (zh) * | 2014-07-17 | 2014-10-08 | 深圳市贝特瑞新能源材料股份有限公司 | 一种多元复合负极材料、其制备方法及包含其的锂离子电池 |
CN104157840A (zh) * | 2014-08-15 | 2014-11-19 | 南京师范大学 | 一种锂离子电池用石墨烯包覆二氧化硅纳米管复合负极材料的制备方法 |
CN104934608A (zh) * | 2015-04-13 | 2015-09-23 | 青岛科技大学 | 一种石墨烯原位包覆锂离子电池正极材料的制备方法 |
CN105845921A (zh) * | 2016-05-23 | 2016-08-10 | 无锡市嘉邦电力管道厂 | 一种石墨烯硅酸锰锂正极材料的制备方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110518226A (zh) * | 2019-09-10 | 2019-11-29 | 石家庄尚太科技有限公司 | 一种硅碳复合负极材料及其制备方法 |
CN113130846A (zh) * | 2021-04-26 | 2021-07-16 | 南昌工程学院 | 一种二次电池正极材料及其电池 |
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Effective date of registration: 20210621 Address after: 526108 Room 301, 3 / F, building 1, Lehua Road, phase II, Jindu industrial agglomeration base, Jindu Town, Gaoyao District, Zhaoqing City, Guangdong Province Patentee after: Zhaoqing Lingguang new material technology development Co.,Ltd. Address before: 518107 B6, Kangjia center, Dongzhou community, Guangming Street, Guangming District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Lingguang New Material Co., Ltd |