A preparation method of a ceramic polymer composite diaphragm, the ceramic polymer composite diaphragm and its application
A composite diaphragm and polymer technology, applied in the field of electrochemistry, can solve the problems that affect the performance of ceramic diaphragms in lithium-ion batteries, limited adhesion between ceramic particles and substrate materials, powder falling, etc., to achieve easy industrial production and short preparation time , low cost effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0069] The preparation method of the above-mentioned ceramic polymer composite diaphragm comprises the following steps:
[0070] 1) Preparation of nano ceramic particles
[0071] First, the precursor was prepared in a high-gravity rotating bed by co-precipitation method; among them, Al(NO 3 ) 3 , the concentration is 0.3mol / l; the precipitant is selected (NH 4 ) 2 CO 3 , the concentration is 2mol / l; the dispersant is PEG2000, and the concentration of the dispersant is 2% (w / w) of the concentration of the precipitant; the feed rate of the inorganic salt is 30ml / min; the feed rate of the precipitant is 50ml / min min; the rotating speed of the high-gravity rotating bed is 2500r / min, and the reaction temperature is 0°C;
[0072] Secondly, the precursor is vacuum-filtered, the filtered product is washed with deionized water, and then washed with ethanol, dried in vacuum at 70°C for 24 hours, ground and sieved, calcined at 1200°C for 2 hours, and calcined The heating rate is co...
Embodiment 2
[0089] The preparation method of the above-mentioned ceramic polymer composite diaphragm comprises the following steps:
[0090] 1) Preparation of nano ceramic particles
[0091] First, the precursor was prepared in a high-gravity rotating bed by co-precipitation method; among them, sodium silicate was selected as the inorganic salt, and the concentration was 0.2 mol / l; ammonium carbonate was selected as the precipitant, and the concentration was 1 mol / l; The concentration of dispersant is 1% (w / w) of the concentration of precipitant; The feed rate of inorganic salt is 10ml / min; The feed rate of precipitant is 50ml / min; The rotating speed 1500r / min of supergravity rotary bed, The reaction temperature is 50°C;
[0092]Secondly, the precursor is vacuum-filtered, the filtered product is washed with deionized water, and then washed with ethanol, dried in vacuum at 40°C for 12 hours, ground and sieved, calcined at 500°C for 1 hour, and calcined The heating rate is controlled at 1...
Embodiment 3
[0102] The preparation method of the above-mentioned ceramic polymer composite diaphragm comprises the following steps:
[0103] 1) Preparation of nano ceramic particles
[0104] First, the precursor was prepared in a high-gravity rotating bed by co-precipitation method; among them, the inorganic salt was metatitanic acid with a concentration of 2mol / l; the precipitant was urea with a concentration of 5mol / l; the dispersant was PEG2000, and the dispersant The concentration is 5% (w / w) of the concentration of precipitation agent; The feed rate of inorganic salt is 50ml / min; The feed rate of precipitation agent is 100ml / min; The rotating speed 2500r / min of supergravity rotating bed, reaction temperature at 25°C;
[0105] Secondly, the precursor is vacuum-filtered, the filtered product is washed with deionized water, and then washed with ethanol, dried in vacuum at 80°C for 48 hours, ground and sieved, calcined at 1500°C for 10 hours, and calcined The heating rate is controlled...
PUM
| Property | Measurement | Unit |
|---|---|---|
| shrinkage | aaaaa | aaaaa |
| shrinkage | aaaaa | aaaaa |
| shrinkage | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More