Micro-mesoporous polytriphenylamine derivative applied to lithium battery, as well as preparation method thereof
A polytriphenylamine and micro-mesoporous technology, applied in battery electrodes, secondary batteries, electrochemical generators, etc., to achieve high charge-discharge specific capacity, superior charge-discharge performance, and excellent fast charge-discharge performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0032] Example 1
[0033] Preparation of polymer (PTDATA)
[0034] (1) Synthesis of 4,4',4"-tris(N,N-diphenylamino)triphenylamine (TDATA)
[0035] In a dry 250 mL three-necked flask, add 2.492 g (4 mmol) iodotriphenylamine, 2.708 g (16 mmol) diphenylamine, 0.337 g palladium acetate, 2.244 g potassium tert-butoxide, then add 100 mL o-xylene and stir Dissolve and add 4.8 mL of tributylphosphine to the reaction system with a syringe under the protection of nitrogen, and stir and reflux for 12 hours at 120°C. After the reaction is completed, the solution is filtered while hot, and chloroform and distilled water are added for repeated washing for multiple times, and the obtained extract is evaporated to dryness with a rotary evaporator to obtain a light yellow solid. The solid was dissolved in chloroform, and a short silica gel column was used for decolorization to obtain a pale yellow solution, which was spin-dried to obtain a pale yellow crude product. The solid was recrystallized in...
Example Embodiment
[0038] Example 2
[0039] Electrode preparation and battery assembly
[0040] (1) Preparation of electrodes. The electrode sheet is prepared by the coating method on the surface of the aluminum foil. The active material polymer powder: conductive agent acetylene black: binder PVDF = mass ratio 4:5:1 is dissolved in the solvent N-methylpyrrolidone (NMP) as a viscous liquid. Then the liquid was coated on a clean aluminum foil with a 90 nm doctor blade, and then dried under vacuum at 60 ℃ until the film quality remained unchanged.
[0041] (2) Battery assembly. This article mainly uses CR2032 battery device system to test the electrochemical performance and charge-discharge performance of the battery. Use lithium as a negative electrode and a reference electrode, the electrolyte is 1 M LiPF 6 The EC:DMC =1:1 (v / v) solution, the diaphragm is an industrial polypropylene microporous membrane (Celgard 2300), the electrode prepared before is the positive electrode, and it is placed in an...
PUM
Property | Measurement | Unit |
---|---|---|
Diameter | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap