Porous polymer electrolyte supporting membrane material, preparation method thereof and application thereof
A porous polymer and electrolyte technology, applied in circuits, secondary batteries, electrical components, etc., can solve the problems of restricting the commercialization process of lithium-sulfur batteries, low utilization rate of positive active materials, low battery safety, etc. Solubility, operation and environmental requirements are not harsh, and the effect of wide electrochemical window
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0034] Example 1
[0035] The polyacrylonitrile (PAN) / polymethyl methacrylate (PMMA) powder with a mass percentage of 10% (the mass ratio is 8:2) is dissolved in a 90% mass percentage of NN dimethylformamide ( In DMF), vigorously stir at 60°C for 24 hours to obtain a homogeneous polymer solution. Under the action of 15kV high voltage direct current power supply, the polymer solution is sprayed out in the form of a jet at the end of the capillary of the syringe. The distance between the end of the capillary and the collector is 15cm. As the solvent evaporates, the polymer solution is finally obtained on the collector. Mesh fiber; the electrospun mesh fiber obtained above is vacuum dried at 80° C. to obtain a porous polymer electrolyte supporting membrane material: the average fiber diameter is 200 nm and the porosity is 80%.
[0036] 2.87g LiN(SO 2 CF 3 ) 2 , 6.66g PY 13 TFSI and 3.34g PEGDME prepared 1mol / kg LiN(SO 2 CF 3 ) 2 +PY 13 TFSI+PEGDME(PY 13 TFSI:PEGDME=2:1, weight ratio)...
Example Embodiment
[0040] Example 2
[0041] Dissolve 8% by mass polyacrylonitrile (PAN) / polyvinyl acetate (PVAc) (6:4, mass ratio) powder in 92% by mass tetrahydrofuran (THF) and stir vigorously at 60°C A homogeneous polymer solution was obtained in 24 hours. Under the action of a 10kV high-voltage direct current power supply, the polymer solution is sprayed out in the form of a jet at the end of the capillary of the syringe. The distance between the end of the capillary and the collector is 10cm. Vacuum drying at ℃ to obtain a porous polymer electrolyte supporting membrane material: the average fiber diameter is 400 nm and the porosity is 70%.
[0042] 0.3g LiPF 6 , 9g PP 13 0.2mol / kg LiPF prepared with TFSI and 1g TEGDME 6 +PP 13 TFSI+TEGDME(PP 13 TFSI:TEGDME=9:1, weight ratio) electrolyte. Immerse the porous polymer electrolyte supporting membrane material obtained above in 0.2mol / kg LiPF in a glove box filled with argon. 6 +PP 13 TFSI+TEGDME(PP 13 TFSI:TEGDME=9:1, weight ratio) In the electrol...
Example Embodiment
[0043] Example 3
[0044] Dissolve 8% by mass polyacrylonitrile (PAN) / L-polylactic acid (PLLA) (7:3, mass ratio) powder in 92% by mass dimethyl sulfoxide (DMSO) at 60℃ Stir vigorously for 24 hours to obtain a homogeneous polymer solution. Under the action of the 20kV high voltage direct current power supply, the polymer solution is sprayed out in the form of a jet at the end of the capillary of the syringe. The distance between the end of the capillary and the collector is 20cm. Vacuum drying at ℃ to obtain a porous polymer electrolyte supporting membrane material: the average fiber diameter is 300 nm and the porosity is 75%.
[0045] 3.44g LiN(SO 2 CF 3 ) 2 , 5g PP 14 TFSI and 5g DOL prepared 1.2mol / kg LiN(SO 2 CF 3 ) 2 +PP 14 TFSI+DOL(PP 14 TFSI:DOL=1:1, weight ratio) electrolyte. In a glove box filled with argon, the porous polymer electrolyte support membrane material obtained above was immersed in 1.2mol / kg LiN(SO 2 CF 3 ) 2 +PP 14 TFSI+DOL(PP 14 TFSI:DOL=1:1, weight ratio) ...
PUM
Property | Measurement | Unit |
---|---|---|
Fiber diameter | aaaaa | aaaaa |
Diameter | aaaaa | aaaaa |
Fiber diameter | 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