Co-Ni/C composite catalytic material modified lithium carbon fluoride battery positive plate and preparation method thereof
A lithium carbon fluoride battery and catalytic material technology, which is applied to battery electrodes, non-aqueous electrolyte battery electrodes, circuits, etc., can solve problems affecting battery capacity performance and limited development, and can improve voltage hysteresis, increase capacity, The effect of performance improvement
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Embodiment 1
[0033] Step 1: Weigh cobalt nitrate, nickel sulfate and urea according to the molar ratio of cobalt, nickel and carbon atoms at 1:9:38 and grind them with a mortar for 20 minutes to fully mix them to obtain mixture A;
[0034] Step 2: Put the mixture A in a high-temperature tube furnace, and in a flowing argon atmosphere of 100 sccm, first rapidly raise the temperature to 150°C at a rate of 15°C / min, keep it warm for 0.5h, and cool it naturally to room temperature after the heat preservation is over. After taking out, obtain product B;
[0035] Step 3: Grind the product B with a mortar for 20 minutes, then put it into a freeze-drying box, and let it stand at a low temperature of -10°C for 6 hours;
[0036] Step 4: Take the above product out and put it into a high-temperature tube furnace. In a flowing argon atmosphere of 100 sccm, rapidly raise the temperature to 500 °C at a rate of 10 °C / min. After the heating is completed, naturally cool to room temperature and take it out t...
Embodiment 2
[0039] Step 1: Weigh cobalt sulfate, nickel nitrate and melamine according to the molar ratio of cobalt, nickel and carbon atoms at 1:10:30 and grind them with a mortar for 25 minutes to fully mix them to obtain mixture A;
[0040] Step 2: Put the mixture A in a high-temperature tube furnace. In a flowing nitrogen atmosphere of 100 sccm, first rapidly raise the temperature to 200°C at a rate of 30°C / min, and keep it for 1 hour. After the heat preservation is over, cool it naturally to room temperature and take it out , to obtain product B;
[0041] Step 3: Grind the product B with a mortar for 25 minutes, then put it into a freeze-drying box, and let it stand at a low temperature of -20°C for 4 hours;
[0042] Step 4: Take the above product out and put it into a high-temperature tube furnace. In a flowing nitrogen atmosphere of 100 sccm, rapidly raise the temperature to 550 °C at a rate of 20 °C / min. After the heating is completed, naturally cool to room temperature and take i...
Embodiment 3
[0045] Step 1: Weigh cobalt sulfate, nickel bromide and glucose according to the molar ratio of cobalt, nickel and carbon atoms at 1:20:20 and grind them with a mortar for 30 minutes to fully mix them to obtain mixture A;
[0046] Step 2: Put the mixture A in a high-temperature tube furnace, and in a flowing argon atmosphere of 100 sccm, first rapidly raise the temperature to 180°C at a rate of 20°C / min, keep it warm for 0.8h, and cool it naturally to room temperature after the heat preservation is over. After taking out, obtain product B;
[0047] Step 3: Grind the product B with a mortar for 30 minutes, then put it into a freeze-drying box, and let it stand at a low temperature of -30°C for 3 hours;
[0048]Step 4: Take the above product out and put it into a high-temperature tube furnace. In a flowing hydrogen atmosphere of 100 sccm, rapidly raise the temperature to 600 °C at a rate of 30 °C / min. After the heating is completed, naturally cool to room temperature and take it...
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