A kind of battery separator material, material preparation method and battery separator
A diaphragm and vanadium battery technology, applied in the field of materials, can solve problems such as poor barrier capacity, short service life of vanadium batteries, and greater impact on battery service life, and achieve good hydrophilicity, improved service life, and improved ion selectivity Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0037] The above is a specific introduction to the materials provided in the embodiments of the present application. The following can further provide a preparation method of a material, which can be used to prepare the material by dispersing the silicon carbide nanowires in the perfluorosulfonic acid solution, like figure 1 Shown is the specific flow chart of the preparation method, including the following steps:
[0038] Step S101: Dissolving the perfluorosulfonic acid resin in a mixed solution to obtain a perfluorosulfonic acid solution, the mixed solution is prepared by water and propanol in a volume ratio of 1:1.
[0039]First, the mixed solution can be prepared by using water and propanol (volume ratio of 1:1), wherein the propanol here can be n-propanol or isopropanol. After the mixed solution is prepared, the perfluorosulfonic acid resin can be put into the mixed solution, wherein the mass (unit: g) of the added perfluorosulfonic acid resin can be 0.01-0.1 of the volu...
Embodiment 1
[0054] 1.1. Functionalization of SiC nanowires
[0055] The unfunctionalized silicon carbide nanowires were put into a mixed solution of sulfuric acid and methanol with a concentration of 1 mol / L, wherein the mass of the silicon carbide nanowires put in was 0.02 times the volume of the mixed solution of sulfuric acid and methanol. The reaction was then refluxed for 24 hours under the conditions of 110 degrees Celsius and a stirring speed of 1000 rpm. After the reflux reaction, the reaction product was washed with deionized water until the pH value was neutral, and then the reaction product was dried in an oven at 100 degrees Celsius for 24 hours, and the obtained gray-black powder was functionalized silicon carbide nanowires.
[0056] 1.2. Preparation of perfluorosulfonic acid solution
[0057] Prepare a mixed solution of deionized water and n-propanol in a volume ratio of 1:1, and then add a perfluorosulfonic acid resin to the mixed solution, wherein the mass of the added pe...
Embodiment 2
[0066] In this Example 2, the functionalization of the silicon carbide nanowires and the preparation of the perfluorosulfonic acid solution are the same as those in the Example 1, and the difference lies in the material preparation and the preparation steps of the battery separator.
[0067] In the preparation steps of the material preparation and battery separator of this embodiment 2:
[0068] According to the mass ratio of silicon carbide nanowires to perfluorosulfonic acid is 1:200, weigh the above-mentioned functionalized silicon carbide nanowires and perfluorosulfonic acid solution, and weigh the functionalized silicon carbide nanowires. line, added to the weighed perfluorosulfonic acid solution, and then dispersed by ultrasonic vibration, thereby obtaining the material 2 provided by the embodiment of the application;
[0069] The above-mentioned material 2 is evenly coated on a clean polyimide film substrate, and then the coating of the above-mentioned material 2 is cov...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More