Expanded graphite negative electrode material loaded with willow-shaped iron ferric oxide and preparation method thereof
A technology of triiron tetroxide and expanded graphite is applied in the field of material preparation and expanded graphite negative electrode material, which can solve the problems of insufficient energy density, poor charge-discharge cycle performance, etc., and achieves good electrical conductivity, good charge-discharge cycle performance, The effect of improving high-current charge-discharge performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] S1: Immerse the expanded graphite in water and stir for 10 minutes to obtain a 5g / L expanded graphite suspension;
[0036] S2: prepare 1mol / L ferric salt-containing solution, then add structure directing agent polyvinyl dimethyl ammonium chloride to the ferric salt solution, and dissolve; the added amount of the structure directing agent is the same as The mass ratio of ferric iron is 5:1;
[0037] S3: Slowly add 32.4 mL of the ferric salt solution containing the structure directing agent into 1 L of the expanded graphite suspension, and the addition is completed within 1 min;
[0038] S4: Heating the expanded graphite suspension treated in S3 to reflux for 0.5h, and cooling to room temperature;
[0039] S5: Dissolve 0.408g of sodium borohydride and 3.889g of sodium hydroxide in 20mL of water, then add dropwise to the suspension treated in S4, and stir for 2 hours to prepare a composite material containing iron oxide and expanded graphite;
[0040] S6: Filtrate and wa...
Embodiment 2
[0043] S1: Immerse the expanded graphite in water and stir for 30 minutes to obtain a 10g / L expanded graphite suspension;
[0044] S2: prepare 2mol / L ferric salt-containing solution, then add structure directing agent polyvinyl dimethyl ammonium chloride to the ferric salt solution, and dissolve; the added amount of the structure directing agent is the same as The mass ratio of ferric iron is 10:1;
[0045] S3: Slowly add 16.2 mL of ferric salt-containing solution containing structure directing agent dropwise to 1 L of expanded graphite suspension, and the dropwise addition is completed within 30 seconds;
[0046] S4: Heating the expanded graphite suspension treated in S3 to reflux for 1 h, and cooling to room temperature;
[0047] S5: 0.408g of sodium borohydride and 5.184g of sodium hydroxide were dissolved in 20mL of water, and then added dropwise to the suspension treated in S4, and stirred for 3 hours to prepare a composite material containing iron oxide and expanded gra...
Embodiment 3
[0051] S1: Immerse expanded graphite in water and stir for 1 hour to obtain a 15g / L expanded graphite suspension;
[0052] S2: prepare 5mol / L ferric salt-containing solution, then add structure directing agent polyvinyl dimethyl ammonium chloride to the ferric salt solution, and dissolve; the added amount of the structure directing agent is the same as The mass ratio of ferric iron is 15:1;
[0053] S3: Slowly add 6.5 mL of ferric salt-containing solution containing the structure directing agent dropwise into 1 L of expanded graphite suspension, and the dropwise addition is completed within 20 seconds;
[0054] S4: Heating the expanded graphite suspension treated in S3 to reflux for 1.5h, and cooling to room temperature;
[0055] S5: Dissolve 0.408g of sodium borohydride and 6.48g of sodium hydroxide in 20mL of water, then add dropwise to the suspension treated in S4, and stir for 4 hours to prepare a composite material containing iron oxide and expanded graphite;
[0056] S...
PUM
Property | Measurement | Unit |
---|---|---|
density | aaaaa | aaaaa |
specific surface area | aaaaa | aaaaa |
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