Porous lead oxide-carbon composite material for negative electrode of lead-carbon battery and preparation method of porous lead oxide-carbon composite material
A technology of carbon composite materials and lead-carbon batteries, which can be used in battery electrodes, lead-acid batteries, negative electrodes, etc., and can solve problems such as difficult separation, affecting the cycle life of lead-carbon anodes with extremely high rates, and the specific surface area of carbon-containing composite materials.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] Add 10g porous carbon material (527m 2 g -1 ) and 60ml 0.01mol L -1 lead nitrate solution, after ultrasonic for 20min, put it in a vacuum box for 30min, in N 2 Stir mechanically under atmosphere for 90min, slowly add 0.1mol L -1 Sodium hydroxide solution to pH 10.0, stirred for 2h. Filter under reduced pressure, wash with deionized water at 80°C for 2-3 times, wash with ethanol, and dry in a blast drying oven at 120°C for 12 hours to obtain the precursor material;
[0035] The precursor was heat-treated in a tube furnace at a heating rate of 5 °C min -1 , the temperature is 380 degrees Celsius, N 2 Heat treatment temperature in protective gas is 10min, cooling;
[0036] After heat treatment, the material was mechanically stirred and dispersed in hot water for 30 minutes, centrifuged for 5 minutes, and the speed was 8000r min -1, the centrifugation time was 1, washed 3 times, and dried for 5 hours in a blast drying oven at 120°C to obtain Example 1;
[0037] The ...
Embodiment 2
[0039] Add 10g of activated carbon material (560m 2 g -1 ) and 60ml 0.01mol L -1 lead nitrate solution, after ultrasonic for 20min, put it in a vacuum box for 30min, in N 2 Stir mechanically under atmosphere for 90min, slowly add 0.1mol L -1 Sodium hydroxide solution to pH 10.0, stirred for 2h. Filter under reduced pressure, wash with deionized water at 80°C for 2-3 times, wash with ethanol, and dry in a blast drying oven at 120°C for 12 hours to obtain the precursor material;
[0040] The precursor was heat-treated in a tube furnace at a heating rate of 5 °C min -1 , the temperature is 380 degrees Celsius, N 2 Heat treatment temperature in protective gas is 10min, in O 2 0.5% N by mass 2 and O 2 Heat treatment in mixed gas for 5min, N 2 Cooling in protective gas;
[0041] After heat treatment, the material was mechanically stirred and dispersed in hot water for 15 minutes, centrifuged for 5 minutes, and the speed was 5000r min -1 , the centrifugation time is 2, was...
Embodiment 3
[0044] Add 10g porous carbon material (527m 2 g -1 ) and 60ml 0.05mol L -1 lead nitrate solution, after ultrasonic for 30min, put it in a vacuum box for 30min, in N 2 Stir mechanically under atmosphere for 60min, slowly add 0.1mol L -1 Potassium hydroxide solution until the pH reached 10.2, stirred for 2h. Filter under reduced pressure, wash with deionized water at 80°C for 2-3 times, wash with ethanol, and dry in a blast drying oven at 120°C for 12 hours to obtain the precursor material;
[0045] The precursor was heat-treated in a tube furnace at a heating rate of 5 °C min -1 , the temperature is 360 degrees Celsius, N 2 Heat treatment temperature in protective gas is 10min, in O 2 0.5% N by mass 2 and O 2 Heat treatment in mixed gas for 10min, N 2 Cooling in protective gas;
[0046] After heat treatment, the material was mechanically stirred and dispersed in hot water for 15 minutes, centrifuged for 5 minutes, and the speed was 5000r min -1 , the centrifugation t...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Specific surface area | aaaaa | aaaaa |
| Specific surface area | aaaaa | aaaaa |
| Specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More