Coating diaphragm as well as preparation method and application thereof
A membrane and coating technology, applied in the field of coating membrane and its preparation, can solve the problems of inability to completely suppress dendrites, and achieve the effects of component and content optimization, high flatness, and no dendrites
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0065] Preparation Example 1
[0066] A kind of delaminated hydrotalcite containing anion fixed structure, the preparation method is as follows:
[0067] (1) Commercially purchased magnesium-aluminum hydrotalcite (Mg-Al LDH) was calcined at 450 °C for 5 h under an argon atmosphere to obtain a double-layer oxide without carbonate ions and water; the above-mentioned double-layer oxide was dispersed in 15 mL ethanol / H containing 0.3 g lithium bistrifluoromethanesulfonimide (LiTFSI) 2 O mixed solution (12 mL ethanol, 3 mL H 2 (2) in 70°C for 12h to obtain pre-layered Mg-Al LDH;
[0068] (2) The pre-layered Mg-Al LDH obtained in step (1) was centrifuged and then calcined at 250° C. for 3 h under an argon atmosphere to remove H in the intermediate layer. 2 O, to obtain an intermediate product;
[0069] (3) Disperse 1.15 g of the intermediate product obtained in step (2) in 30 mL of N,N-dimethylformamide (DMF) containing 2.3 g of LiTFSI, and perform ultrasonic treatment and stirr...
Example Embodiment
[0070] Preparation Example 2
[0071] A delaminated hydrotalcite containing an anion-fixed structure, the difference from Preparation Example 1 is only that LiTFSI in steps (2) and (3) is treated with lithium hexafluorophosphate (LiPF) of equal quality. 6) to obtain the exfoliated Mg-Al LDH containing anion-fixed structure.
Example Embodiment
[0072] Preparation Examples 3-6
[0073] A delaminated hydrotalcite containing an anion fixed structure, the difference from Preparation Example 1 is only that the quality of the intermediate product in step (3) is 2.8g, 2.3g, 0.6g, 0.4g, respectively, to obtain an anion-containing fixed structure The delaminated Mg-Al LDH.
[0074] The materials used in the following examples and comparative examples of the present invention include:
[0075] Diaphragm base: single-layer polypropylene diaphragm, Celgard 2400;
[0076] Binder: polyvinylidene fluoride (PVDF), source leaf, S25907.
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