CN107623112B - 掺锂磷酸硼修饰的碳包覆磷酸锰铁锂正极材料及其制备方法 - Google Patents
掺锂磷酸硼修饰的碳包覆磷酸锰铁锂正极材料及其制备方法 Download PDFInfo
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- CN107623112B CN107623112B CN201710711515.6A CN201710711515A CN107623112B CN 107623112 B CN107623112 B CN 107623112B CN 201710711515 A CN201710711515 A CN 201710711515A CN 107623112 B CN107623112 B CN 107623112B
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- Prior art keywords
- lithium
- phosphate
- carbon
- coated
- doped boron
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- 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 title claims abstract description 78
- 229910000149 boron phosphate Inorganic materials 0.000 title claims abstract description 44
- -1 boron phosphate modified carbon Chemical class 0.000 title claims abstract description 17
- 239000010406 cathode material Substances 0.000 title claims description 15
- 238000002360 preparation method Methods 0.000 title claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 33
- YZYDPPZYDIRSJT-UHFFFAOYSA-K boron phosphate Chemical compound [B+3].[O-]P([O-])([O-])=O YZYDPPZYDIRSJT-UHFFFAOYSA-K 0.000 claims abstract description 28
- 239000011164 primary particle Substances 0.000 claims abstract description 25
- 239000011163 secondary particle Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000007774 positive electrode material Substances 0.000 claims abstract description 5
- 239000011247 coating layer Substances 0.000 claims abstract description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 29
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 13
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 13
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 7
- 239000004327 boric acid Substances 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 7
- 239000010405 anode material Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000002345 surface coating layer Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910016168 LiMn1-xFexPO4 Inorganic materials 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 1
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- 230000004048 modification Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 229910001437 manganese ion Inorganic materials 0.000 abstract description 3
- 239000011149 active material Substances 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract description 2
- 239000010416 ion conductor Substances 0.000 abstract description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 150000001721 carbon Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 102000004310 Ion Channels Human genes 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000006713 insertion reaction Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000000758 substrate 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
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Abstract
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CN107623112A CN107623112A (zh) | 2018-01-23 |
CN107623112B true CN107623112B (zh) | 2020-11-13 |
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CN108878861B (zh) * | 2018-04-24 | 2020-08-07 | 广东邦普循环科技有限公司 | 一种三元正极材料表面修复的方法及其三元正极材料 |
CN112599736B (zh) * | 2020-12-11 | 2023-04-07 | 巴斯夫杉杉电池材料有限公司 | 一种掺硼磷酸锂包覆锂离子电池正极材料及其制备方法 |
CN115832283A (zh) * | 2021-11-29 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | 一种复合正极活性材料 |
CN114665076B (zh) * | 2022-03-25 | 2024-07-12 | 湖北亿纬动力有限公司 | 一种复合正极材料及其制备方法与应用 |
CN115724418B (zh) * | 2022-12-09 | 2024-05-10 | 广东邦普循环科技有限公司 | 一种磷酸锰铁锂正极材料、其制备方法及电池 |
Citations (3)
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CN103985868A (zh) * | 2014-05-28 | 2014-08-13 | 天津大学 | 锂离子电池用磷酸锰铁锂/炭复合正极材料及合成方法 |
CN103996842A (zh) * | 2014-05-20 | 2014-08-20 | 常州大学 | 一种提高电极材料lnmo性能的方法 |
CN105977456A (zh) * | 2015-03-12 | 2016-09-28 | 中国科学院成都有机化学有限公司 | 一种制备LiMn1-xFexPO4/C复合材料的固相合成方法 |
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- 2017-08-18 CN CN201710711515.6A patent/CN107623112B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103996842A (zh) * | 2014-05-20 | 2014-08-20 | 常州大学 | 一种提高电极材料lnmo性能的方法 |
CN103985868A (zh) * | 2014-05-28 | 2014-08-13 | 天津大学 | 锂离子电池用磷酸锰铁锂/炭复合正极材料及合成方法 |
CN105977456A (zh) * | 2015-03-12 | 2016-09-28 | 中国科学院成都有机化学有限公司 | 一种制备LiMn1-xFexPO4/C复合材料的固相合成方法 |
Non-Patent Citations (1)
Title |
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"Ionic conductivity of LixB1-x/3PO4 ceramic electrolyte based on defect models";Tae Jung Kim等;《Journal of Power Sources》;20030915;第123卷;第65-68页 * |
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CB03 | Change of inventor or designer information | ||
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Inventor after: Lu Wei Inventor after: Gao Shan Inventor after: Chen Chaoyang Inventor after: Bian Guo Inventor after: Chen Liwei Inventor before: Lu Wei Inventor before: Gao Shan Inventor before: Chen Chaoyang Inventor before: Bian Guo |
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TA01 | Transfer of patent application right |
Effective date of registration: 20180323 Address after: 315000 Zhejiang city of Ningbo province at Jiangbei District People No. 385 Room 202 Applicant after: NINGBO ZHILIANG NEW ENERGY Co.,Ltd. Address before: 315500 Jinhai Road, Jinhai Road, Shang Qiao Industrial Park, Ningbo Fenghua District Economic Development Zone, Zhejiang Province, No. 55 Applicant before: NINGBO ZHINENG NEW MATERIAL CO.,LTD. |
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Effective date of registration: 20221010 Address after: 312000 1st floor, Building 5, No. 1388, Xingbin Road, Ma'an Street, Keqiao District, Shaoxing City, Zhejiang Province (commitment application) Patentee after: Zhongke Zhiliang New Energy Materials (Zhejiang) Co.,Ltd. Address before: Room 202, No. 385, Cihu Family, Cicheng Town, Jiangbei District, Ningbo, Zhejiang 315000 Patentee before: NINGBO ZHILIANG NEW ENERGY Co.,Ltd. |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Carbon coated manganese iron phosphate lithium cathode material modified with lithium doped boron phosphate and its preparation method Granted publication date: 20201113 Pledgee: Zhejiang Shaoxing Ruifeng Rural Commercial Bank Co.,Ltd. Huashe sub branch Pledgor: Zhongke Zhiliang New Energy Materials (Zhejiang) Co.,Ltd. Registration number: Y2024980007092 |