Aqueous iron ion battery positive electrode active material, preparation method thereof and iron ion battery
The invention discloses an aqueous iron ion battery positive electrode active material, a preparation method thereof and an iron ion battery, and belongs to the technical field of secondary lithium ion batteries. The chemical formula of the positive electrode active material is K3V2 (PO4) 3, and the...
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Format | Patent |
Language | Chinese English |
Published |
08.08.2023
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Abstract | The invention discloses an aqueous iron ion battery positive electrode active material, a preparation method thereof and an iron ion battery, and belongs to the technical field of secondary lithium ion batteries. The chemical formula of the positive electrode active material is K3V2 (PO4) 3, and the preparation method comprises the following steps: S1, adding a potassium source, a vanadium source, a phosphorus source and a carbon source into a ball milling solvent to obtain a mixed solution; s2, carrying out ball milling on the mixed solution obtained in the step S1 until the particle size of suspended particles is 100nm-3mu m, so as to obtain a precursor dispersion liquid; s3, performing spray drying on the precursor dispersion liquid obtained in the step S2 to obtain precursor powder; and S4, sintering the precursor powder obtained in the step S3 in an inert atmosphere to obtain the composite material. The positive electrode active material K3V2 (PO4) 3 provided by the invention has high specific discharge |
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AbstractList | The invention discloses an aqueous iron ion battery positive electrode active material, a preparation method thereof and an iron ion battery, and belongs to the technical field of secondary lithium ion batteries. The chemical formula of the positive electrode active material is K3V2 (PO4) 3, and the preparation method comprises the following steps: S1, adding a potassium source, a vanadium source, a phosphorus source and a carbon source into a ball milling solvent to obtain a mixed solution; s2, carrying out ball milling on the mixed solution obtained in the step S1 until the particle size of suspended particles is 100nm-3mu m, so as to obtain a precursor dispersion liquid; s3, performing spray drying on the precursor dispersion liquid obtained in the step S2 to obtain precursor powder; and S4, sintering the precursor powder obtained in the step S3 in an inert atmosphere to obtain the composite material. The positive electrode active material K3V2 (PO4) 3 provided by the invention has high specific discharge |
Author | FENG KAIKAI CHEN JINGJING PI YUQIANG DU CHENGYUE WANG FENG YANG CAISHENG XIONG MEIQI DING YU |
Author_xml | – fullname: DING YU – fullname: DU CHENGYUE – fullname: XIONG MEIQI – fullname: FENG KAIKAI – fullname: YANG CAISHENG – fullname: PI YUQIANG – fullname: CHEN JINGJING – fullname: WANG FENG |
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DocumentTitleAlternate | 一种水系铁离子电池正极活性材料及其制备方法和铁离子电池 |
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Snippet | The invention discloses an aqueous iron ion battery positive electrode active material, a preparation method thereof and an iron ion battery, and belongs to... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
Title | Aqueous iron ion battery positive electrode active material, preparation method thereof and iron ion battery |
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