Electrode material with ultrafine MoO2 nano-particles uniformly bridged inside flaky carbon matrix, as well as preparation method and application of electrode material
A nanoparticle and electrode material technology, applied in the field of nanomaterials and electrochemistry, can solve the problems of unsatisfactory cycle performance and life, poor dynamic volume expansion of lithium deintercalation, and achieve excellent electron/ion conductivity and structural stability. , reduce volume expansion, improve the effect of conduction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0029] Example 1
[0030] The preparation method of the electrode material that evenly bridges ultrafine MoO2 nanoparticles in the flaky carbon matrix includes the following steps:
[0031] 1) Mix 0.96g Mo powder and add 20mL H 2 O 2 And 20mL H 2 O mixed solution, stir for 12h;
[0032] 2) Transfer the solution obtained in step 1) to a 100mL reaction vessel and heat it at 180°C for 24 hours, take out the reaction vessel, and naturally cool to room temperature to obtain MoO 3 Nanoribbon solution;
[0033] 3) Add 2mL of the product obtained in step 2) and 0.3g of dopamine hydrochloride to a solution of 0.1214g of tris-hydroxymethylaminomethane dissolved in 100mL of deionized water, stir for 4h and wash with deionized water and absolute ethanol 3 times each , Dried in an oven at 80°C to obtain flower-like Mo-polydopamine composite material (Mo-PDA);
[0034] 4) The product obtained in step 3) is placed in a tube furnace and sintered at 800°C for 2 hours in an Ar atmosphere to obtain the u...
Example Embodiment
[0039] Example 2
[0040] 1) Mix 1.5g Mo powder into 30mL H 2 O 2 And 30mL H 2 In the mixed solution of O, stir for 18h;
[0041] 2) Transfer the solution obtained in step 1) to a 100mL reactor and heat at 200°C for 24 hours, take out the reactor, and cool to room temperature naturally to obtain MoO 3 Nanoribbon solution;
[0042] 3) Add 2mL of the product obtained in step 2) and 0.6g of dopamine hydrochloride to a solution of 0.2g of tris-hydroxymethylaminomethane dissolved in 100mL of deionized water, stir for 4h and wash with deionized water and absolute ethanol 3 times each , Dried in an oven at 80°C to obtain flower-like Mo-polydopamine composite material (Mo-PDA);
[0043] 4) The product obtained in step 3) is placed in a tube furnace and sintered at 800°C for 4 hours in an Ar atmosphere to obtain the uniformly bridged ultrafine MoO inside the flake carbon matrix 2 Nanoparticle electrode material.
[0044] The flake carbon matrix obtained in this experiment is uniformly bridged w...
Example Embodiment
[0045] Example 3
[0046] 1) Mix 0.5g Mo powder and add 20mL H 2 O 2 And 20mL H 2 O mixed solution, stir for 6h;
[0047] 2) Transfer the solution obtained in step 1) to a 100mL reactor and heat it at 170°C for 12 hours. Take out the reactor and cool to room temperature naturally to obtain MoO 3 Nanoribbon solution;
[0048] 3) Add 2mL of the product obtained in step 2) and 0.2g of dopamine hydrochloride to a solution of 0.1214g of tris-hydroxymethylaminomethane dissolved in 100mL of deionized water, stir for 4h, and wash with deionized water and absolute ethanol 4 times each , And dry;
[0049] 4) The product obtained in step 3) is placed in a tube furnace and sintered at 700° C. for 4 hours in an Ar atmosphere to obtain an electrode material in which the flake carbon matrix is uniformly bridged with ultrafine MoO2 nanoparticles.
[0050] The flake carbon matrix obtained in this experiment is uniformly bridged with ultrafine MoO 2 Take the nanoparticle electrode material as an examp...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap