A kind of amorphous manganese oxide coated iron oxide lithium/sodium ion battery negative electrode material and preparation method thereof
A sodium ion battery, manganese oxide technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as the harm of lithium / sodium ion batteries, achieve good electrochemical performance, improve kinetic performance, and low cost. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] Solution A: Weigh 80mg Fe 2 o 3 , dispersed it in 25mL deionized water, and obtained a uniform dispersion after ultrasonication for 30 minutes. Solution B: 0.20g KMnO 4 Dissolve in 25mL deionized water, then add 0.8mL 1M HCl, stir well. After solution B was heated to 95°C, solution A was added dropwise thereto. Under magnetic stirring, the mixture was heated at 95 °C for 2 h. After natural cooling, the product was washed several times by centrifugation with deionized water and ethanol, and then dried at 80°C to obtain brown amorphous MnO 2 Coated Fe 2 o 3 composite material.
[0027] In the above preparation method, heating the mixed solution at 95°C for 2h to extend to 5h, 8h, 14h or 23h can also obtain brown amorphous MnO 2 Coated Fe 2 o 3 composite material.
[0028] In N-methyl-pyrrolidone (NMP) as solvent, the amorphous MnO 2 Coated Fe 2 o 3 The composite material is mixed evenly with acetylene black and polyvinylidene fluoride (PVDF) according to the...
Embodiment 2
[0034] Solution A: Weigh 400mg Fe 2 o 3 , dispersed it in 25mL deionized water, and obtained a uniform dispersion after ultrasonication for 30 minutes. Solution B: 1.20g KMnO 4 Dissolve in 25mL deionized water, then add 10.0mL 1M HCl, stir well. After solution B was heated to 140°C, solution A was added dropwise thereto. Under magnetic stirring, the mixture was heated at 140 °C for 8 h. After natural cooling, the product was washed several times by centrifugation with deionized water and ethanol, and then dried at 80°C to obtain brown amorphous MnO 2 Coated Fe 2 o 3 composite material. in H 2 (30%H 2 and 70% Ar) atmosphere, the prepared MnO 2 Coated Fe 3 o 4 The composite was fired at 350°C for 5h. After cooling to room temperature, the product was centrifuged and then dried to obtain amorphous MnO 2 Coated Fe 3 o 4 composite material.
[0035] In N-methyl-pyrrolidone (NMP) as solvent, the amorphous MnO 2 Coated Fe 3 o 4 The composite material is mixed even...
Embodiment 3
[0037] in H 2 (30%H 2 and 70% Ar) atmosphere, the Fe 2 o 3 Burn at 350°C for 5h. After being cooled to room temperature, the product was subjected to centrifugal washing and drying to obtain Fe 3 o 4 . Solution A: Weigh 40mg Fe 3 o 4 , dispersed it in 25mL deionized water, and obtained a uniform dispersion after ultrasonication for 30 minutes. Solution B: 0.40g KMnO 4 Dissolve in 25mL deionized water, then add 0.5mL 2M HCl, stir well. After solution B was heated to 95°C, solution A was added dropwise thereto. Under magnetic stirring, the mixture was heated at 95 °C for 8 h. After natural cooling, the product was washed several times by centrifugation with deionized water and ethanol, and then dried at 80°C to obtain brown amorphous MnO 2 Coated Fe 3 o 4 composite material.
[0038] In N-methyl-pyrrolidone (NMP) as solvent, MnO 2 Coated Fe 3 o 4 The composite material is mixed evenly with acetylene black and polyvinylidene fluoride (PVDF) according to the mass...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com