Oxygen anion battery positive electrode material based on non-noble metal/carbon composite catalytic material as well as preparation method and application thereof
A non-precious metal, catalytic material technology, applied in the field of electrochemistry, can solve the problems of increasing the cost of electrode preparation and limiting practicability, and achieve the effect of high reversibility of positive electrode capacity, guaranteed working life, and large positive electrode capacity.
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Embodiment 1
[0029] Weigh 1.637 g of phenolic resin, dissolve it in 100 ml of acetone, then weigh 1 g of nickel phthalocyanine compound and add it to the resulting solution for ultrasonic dispersion for 5 hours, then vacuum dry the solution to volatilize the acetone to obtain a uniformly mixed precursor. The obtained precursor was sintered at 900° C. for 5 hours under an argon atmosphere, and then the obtained carbide was ball-milled at 300 rpm to obtain a nickel / carbon composite catalytic material.
[0030] Weigh 15 mg of nickel / carbon composite catalytic material and 35 mg of lithium oxide, and mix the nickel / carbon composite catalytic material and lithium oxide active material in an inert gas atmosphere by mechanical ball milling. The ratio of catalyst to active material is 3:7. The inert gas is argon. The ball milling time was 125 hours. Finally, the positive electrode active powder is obtained.
[0031] Transfer the positive electrode active powder to an argon atmosphere, grind and...
Embodiment 2
[0037]Weigh 8.185 grams of phenolic resin, dissolve it in 500 milliliters of acetone, then weigh 5 grams of nickel phthalocyanine compound and add it to the resulting solution for ultrasonic dispersion for 5 hours, then vacuum dry the solution to volatilize the acetone to obtain a homogeneously mixed precursor. The obtained precursor was sintered at 900° C. for 5 hours under an argon atmosphere, and then the obtained carbide was ball-milled at 300 rpm to obtain a nickel / carbon composite catalytic material.
[0038] Weigh 60 mg of nickel / carbon composite catalytic material and 140 mg of lithium oxide, and mix the nickel / carbon composite catalytic material and lithium oxide active material in an inert gas atmosphere by mechanical ball milling. The ratio of catalyst to active material is 3:7. The inert gas is argon. The ball milling time was 100 hours. This operation is repeated several times to finally obtain a sufficient amount of positive electrode active powder.
[0039] T...
Embodiment 3
[0043] Weigh 1.637 g of phenolic resin, dissolve it in 100 ml of acetone, then weigh 1 g of iron phthalocyanine compound and add it to the resulting solution for ultrasonic dispersion for 5 hours, then vacuum dry the solution to volatilize the acetone to obtain a homogeneously mixed precursor. The obtained precursor was sintered at 900° C. for 5 hours under an argon atmosphere, and then the obtained carbide was ball-milled at 300 rpm to obtain an iron / carbon composite catalytic material.
[0044] Weigh 15 mg of iron / carbon composite catalytic material and 35 mg of lithium oxide, and mix the iron / carbon composite catalytic material and lithium oxide active material in an inert gas atmosphere by mechanical ball milling. The ratio of catalyst to active material is 3:7. The inert gas is argon. The ball milling time was 125 hours. Finally, the positive electrode active powder is obtained.
[0045] Transfer the positive electrode active powder to an argon atmosphere, grind and mi...
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