Novel high-performance lithium-sulfur battery positive electrode material and preparation method thereof
A positive electrode material, lithium-sulfur battery technology, applied in battery electrodes, lithium batteries, non-aqueous electrolyte batteries, etc., can solve the problems of volume expansion effect and poor cycle characteristics, and achieve excellent electrochemical energy storage advantages , Improve the charge transfer rate, easy to achieve the effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] The novel high-performance lithium-sulfur battery cathode material is graphene and V with a three-dimensional foam structure. 2 Composites of C Mxene.
[0031] The preparation method of the novel high-performance lithium-sulfur battery cathode material comprises the following steps:
[0032] (1) Prepare graphene and V 2 C Mxene aqueous phase dispersion mixture: first weigh 5mL graphene homogeneous aqueous phase dispersion liquid with a concentration of 10mg / mL, then add 7.5mL deionized water to dilute it to 4mg / mL, and stir evenly in a beaker at room temperature for 0.5 h obtains graphene homogeneous dispersion liquid, then according to mass ratio graphene: V 2 C Mxene is 10:1 ratio will 1mL concentration be 5mg / ml V 2C Mxene solution is added in graphene homogeneous dispersion liquid, continuously stirs 0.5h to form uniform graphene and V 2 C Mxene aqueous phase dispersion mixture;
[0033] (2) Preparation of adsorbed graphene and V 2 C Mxene's nickel foam: First...
Embodiment 2
[0041] The preparation method of the novel high-performance lithium-sulfur battery cathode material comprises the following steps:
[0042] (1) Prepare graphene and V 2 C Mxene aqueous phase dispersion mixture: first weigh 2.5mL graphene homogeneous aqueous phase dispersion liquid with a concentration of 10mg / mL, then add 3.75mL deionized water to dilute it to 4mg / mL, and stir evenly in a beaker at room temperature 0.5h obtains graphene homogeneous dispersion liquid, then according to mass ratio graphene: V 2 C Mxene is 5:1 ratio will 1mL concentration be 5mg / ml V 2 C Mxene solution is added in graphene homogeneous dispersion liquid, continuously stirs 0.5h to form uniform graphene and V 2 C Mxene aqueous phase dispersion mixture;
[0043] (2) Preparation of adsorbed graphene and V 2 C Mxene's nickel foam: First, the nickel foam is sequentially washed with deionized water and absolute ethanol
[0044] Wash each once and dry at 60°C for 1h, then soak until the graphene and...
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