WO2023124161A1 - 配体包覆的掺杂型磷酸铁锂及其制备方法和应用 - Google Patents
配体包覆的掺杂型磷酸铁锂及其制备方法和应用 Download PDFInfo
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- WO2023124161A1 WO2023124161A1 PCT/CN2022/115293 CN2022115293W WO2023124161A1 WO 2023124161 A1 WO2023124161 A1 WO 2023124161A1 CN 2022115293 W CN2022115293 W CN 2022115293W WO 2023124161 A1 WO2023124161 A1 WO 2023124161A1
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- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/45—Phosphates containing plural metal, or metal and ammonium
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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- H—ELECTRICITY
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- 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
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- 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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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- 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
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
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- C—CHEMISTRY; METALLURGY
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
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- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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- C—CHEMISTRY; METALLURGY
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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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
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- Y02E60/10—Energy storage using batteries
Definitions
- a preparation method of ligand-coated doped lithium iron phosphate the preparation method is used to prepare the above-mentioned coated lithium iron phosphate.
- the lithium source is at least one of lithium hydroxide, lithium carbonate, lithium chloride, lithium formate, lithium phosphate, lithium oxalate, lithium sulfate, lithium nitrate or lithium bromide.
- the carbon source is at least one of maltose powder, corn syrup, honey, glucose powder or starch.
- the added amount of the microcarbon sphere conductor is 0.001-0.05 of the total mass of iron phosphate and lithium source.
- the carbon nanospheres, manganese source, T source, methacrylamide, and dispersant are (0.5-5) g: (0.1-1) g: (0.1-1) g: ( 1-5)ml: (5-20)ml mixed.
- the addition amount of the ligand is 0.005-0.01 of the mass of lithium iron phosphate.
- the ligand-coated doped lithium iron phosphate in this embodiment has a chemical formula of LiFePO 4 @Mn-Zr/Cu/Co-C/N.
- step (1) Mix and stir 11.7g of spherical iron phosphate, 1.8g of lithium hydroxide, 0.3g of glucose, 0.2g of microcarbon sphere conductor, and 20mL of polyethylene glycol in step (1), and then send them to a heating box for drying and charging with Ar. Heated at 650°C for 8 hours to obtain 12.3g of microcarbon sphere conductor doped spherical lithium iron phosphate;
- the ligand-coated lithium iron phosphate in this comparative example has a chemical formula of LiFePO 4 @-C/N.
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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)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Compounds Of Iron (AREA)
Abstract
Description
| 组别 | BET(m 2/g) | EC(S/cm) | D 50(μm) |
| 实施例1 | 20.6 | 0.327 | 0.135 |
| 实施例2 | 21.4 | 0.316 | 0.137 |
| 实施例3 | 22.6 | 0.332 | 0.135 |
| 实施例4 | 21.3 | 0.326 | 0.141 |
| 实施例5 | 21.7 | 0.338 | 0.128 |
| 实施例6 | 21.8 | 0.314 | 0.133 |
| 对比例1 | 17.6 | 0.278 | 0.148 |
| 对比例2 | 16.0 | 0.269 | 0.146 |
| 对比例3 | 14.9 | 0.247 | 0.138 |
Claims (10)
- 一种配体包覆的掺杂型磷酸铁锂,其特征在于,所述配体包覆的掺杂型磷酸铁锂的通式为LiFePO 4@Mn-T-C/N,所述T为锌、镍、铜、铁、钴、锆、铝、镓、铬中的至少一种。
- 根据权利要求1所述的配体包覆的掺杂型磷酸铁锂,其特征在于,所述T为锌、镍、铜、钴、锆、镓中的至少一种。
- 根据权利要求1所述的配体包覆的掺杂型磷酸铁锂,其特征在于,所述Mn-T-C/N为Mn-T负载在C/N上。
- 根据权利要求1所述的配体包覆的掺杂型磷酸铁锂,其特征在于,所述配体包覆的掺杂型磷酸铁锂为LiFePO 4@Mn-Zn/Ga-C/N、LiFePO 4@Mn-Cu/Co/Zr-C/N、LiFePO 4@Mn-Zn/Co-C/N、LiFePO 4@Mn-Co/Cu-C/N、LiFePO 4@Mn-Zr/Cu-C/N、LiFePO 4@Mn-Zr/Cu/Co-C/N、LiFePO 4@Mn-Zn/Cu/Co-C/N中的一种。
- 权利要求1-4任一项所述的配体包覆的掺杂型磷酸铁锂的制备方法,其特征在于,所述的制备方法用于制备上述包覆型磷酸铁锂。
- 根据权利要求5所述的制备方法,其特征在于,包括以下步骤:将磷肥、铁源、调控剂混合,加热反应、固液分离、取固相进行第一次煅烧,得到磷酸铁;将所述磷酸铁、锂源、碳源、微碳球导体混合搅拌,进行第二次煅烧,得到微碳球导体掺杂磷酸铁锂;将所述微碳球导体掺杂磷酸铁锂、亚硫酸盐、液相配体混合搅拌,老化,交联,进行第三次煅烧、得到所述配体包覆的掺杂型磷酸铁锂;所述微碳球导体包括纳米碳球、1,6-双(二甲氨基)己烷、锰源、T源、甲基丙烯酰胺、分散剂;所述T源包括锌、镍、铜、铁、钴、锆、铝、镓、铬的可溶性氯化盐、硝酸盐、硫酸盐中的至少一种。
- 根据权利要求6所述的制备方法,其特征在于,所述磷肥为磷酸二氢铵、磷酸氢二铵、磷酸铵、磷酸二氢钾、磷酸氢二钾、磷酸钾或亚磷酸钾中的至少一种;所述铁源为氯化铁、乙酸铁、硝酸铁、硫酸铁、氢氧化铁或草酸铁中的至少一种。
- 根据权利要求6所述的制备方法,其特征在于,所述调控剂为十八烷基三甲基溴化铵、十六烷基三甲基溴化铵、十四烷基三甲基溴化铵或十二烷基三甲基溴化铵中的至少一种;所述碳源为麦芽糖粉、玉米糖浆、蜂蜜、葡萄糖粉或淀粉中的至少一种。
- 根据权利要求6所述的制备方法,其特征在于,所述液相配体由配体和分散剂按固液比为(0.1-0.5):(2-10)g/ml混合而成;所述配体为1,6-双(1H-咪唑-4-羧酰基)己基、1,2-双(1H-咪唑-4-甲酰胺)乙基、4-羟基-(1,1’-联苯)-3,5-二甲酸二甲酯、1,1’,1”-(氮三(苯-4,1-二酰 基))三乙酮中的至少一种。
- 一种电池,其特征在于,包括权利要求1-4任一项所述的配体包覆的掺杂型磷酸铁锂。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/289,022 US12531242B2 (en) | 2021-12-29 | 2022-08-26 | Doped lithium iron phosphate encapsulated in ligand, and preparation method therefor and use thereof |
| ES202390161A ES2978581B2 (es) | 2021-12-29 | 2022-08-26 | Fosfato de hierro-litio dopado encapsulado en ligando, metodo de preparacion y uso correspondientes |
| HU2400046A HUP2400046A1 (hu) | 2021-12-29 | 2022-08-26 | Ligandummal borított, adalékolt lítium-vas-foszfát, és eljárás annak elõállítására és alkalmazása |
| DE112022000868.7T DE112022000868B4 (de) | 2021-12-29 | 2022-08-26 | Mit einem Liganden beschichtetes dotiertes Lithiumeisenphosphat, Verfahren zu dessen Herstellung, sowie Verwendung |
| MA62189A MA62189A1 (fr) | 2021-12-29 | 2022-08-26 | Lithium fer phosphate dopé encapsulé dans un ligand, son procédé de préparation et son utilisation |
| GB2309731.4A GB2617290A (en) | 2021-12-29 | 2022-08-26 | Doped lithium iron phosphate encapsulated in ligand, and preparation therefor and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111634305.4A CN114373911B (zh) | 2021-12-29 | 2021-12-29 | 配体包覆的掺杂型磷酸铁锂及其制备方法和应用 |
| CN202111634305.4 | 2021-12-29 |
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| WO2023124161A1 true WO2023124161A1 (zh) | 2023-07-06 |
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|---|---|
| US (1) | US12531242B2 (zh) |
| CN (1) | CN114373911B (zh) |
| DE (1) | DE112022000868B4 (zh) |
| ES (1) | ES2978581B2 (zh) |
| GB (1) | GB2617290A (zh) |
| HU (1) | HUP2400046A1 (zh) |
| MA (1) | MA62189A1 (zh) |
| WO (1) | WO2023124161A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114373911B (zh) * | 2021-12-29 | 2025-02-07 | 广东邦普循环科技有限公司 | 配体包覆的掺杂型磷酸铁锂及其制备方法和应用 |
| CN115064675A (zh) * | 2022-06-30 | 2022-09-16 | 合肥国轩高科动力能源有限公司 | 磷酸铁锂复合材料及其制备方法、正极、锂离子电池 |
| CN118970256B (zh) * | 2024-07-29 | 2025-09-23 | 上海交通大学 | 回收废旧磷酸铁锂正极粉末用于制备高性能电解水阳极催化剂及提取锂元素的方法 |
| CN118684271A (zh) * | 2024-08-20 | 2024-09-24 | 赣州诺威科技有限公司 | 包覆改性的富锂锰基正极材料及其制备方法、电池 |
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2021
- 2021-12-29 CN CN202111634305.4A patent/CN114373911B/zh active Active
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2022
- 2022-08-26 MA MA62189A patent/MA62189A1/fr unknown
- 2022-08-26 GB GB2309731.4A patent/GB2617290A/en active Pending
- 2022-08-26 ES ES202390161A patent/ES2978581B2/es active Active
- 2022-08-26 DE DE112022000868.7T patent/DE112022000868B4/de active Active
- 2022-08-26 US US18/289,022 patent/US12531242B2/en active Active
- 2022-08-26 WO PCT/CN2022/115293 patent/WO2023124161A1/zh not_active Ceased
- 2022-08-26 HU HU2400046A patent/HUP2400046A1/hu unknown
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| CN109524658A (zh) * | 2018-12-06 | 2019-03-26 | 深圳市德方纳米科技股份有限公司 | 锂离子电池正极材料及其制备方法和锂离子电池 |
| CN111224103A (zh) * | 2020-01-17 | 2020-06-02 | 贝特瑞(天津)纳米材料制造有限公司 | 一种金属离子掺杂高倍率介孔磷酸铁锂正极材料制备方法 |
| CN111430687A (zh) * | 2020-03-10 | 2020-07-17 | 东莞市创明电池技术有限公司 | 碳包覆磷酸铁锂复合材料及其制备方法,锂离子电池 |
| CN111613786A (zh) * | 2020-05-29 | 2020-09-01 | 东莞东阳光科研发有限公司 | 一种复合材料及其制备方法 |
| CN114373911A (zh) * | 2021-12-29 | 2022-04-19 | 广东邦普循环科技有限公司 | 配体包覆的掺杂型磷酸铁锂及其制备方法和应用 |
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| MA62189A1 (fr) | 2024-05-31 |
| GB2617290A (en) | 2023-10-04 |
| CN114373911A (zh) | 2022-04-19 |
| ES2978581B2 (es) | 2025-10-30 |
| ES2978581R1 (es) | 2024-12-16 |
| ES2978581A2 (es) | 2024-09-16 |
| US12531242B2 (en) | 2026-01-20 |
| DE112022000868T5 (de) | 2023-12-21 |
| HUP2400046A1 (hu) | 2024-06-28 |
| CN114373911B (zh) | 2025-02-07 |
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| US20240222626A1 (en) | 2024-07-04 |
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