Copper magnetic current collector, preparation process thereof and magnetic lithium air battery containing the same
A preparation process and magnetic collection technology, applied in the field of lithium metal-air batteries, can solve problems such as poor cycle performance, large overpotential, and deviation of charge and discharge voltage from the theoretical equilibrium position
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Embodiment 2
[0074]Using the NdFeB material containing platinum and nickel as the substrate, the oxide on the surface of the substrate is removed first, then cleaned and dried. Mix the mixed microspheres of chitosan microspheres and albumin microspheres with water at a mass ratio of 100:250, stir to form an emulsion for use; mix the prepared emulsion, water and polyethylene glycol with a volume ratio of 10 :300:1 ratio mixing, ultrasonic dispersion or stirring to obtain electrodeposition solution. The above-mentioned magnetic material containing platinum and nickel is used as a working electrode, graphite is used as a counter electrode, and the prepared electrodeposition solution is used as a solution system for electrodeposition. The electrodeposition voltage is controlled to be 1V, the current is 0.001A, and the deposition time is 90s. The surface is covered with a magnetic material substrate with a template of polymer microspheres. Mix water and potassium hydrogen phthalate in a mass r...
Embodiment 3
[0076] The magnetic material containing platinum and nickel is used as the substrate, the oxide on the surface of the substrate is removed first, and then cleaned and dried. Mix polyacrylic acid microspheres and water at a mass ratio of 50:250, stir to form an emulsion for use; mix the prepared emulsion, water and polyethylene glycol at a volume ratio of 30:700:3, and ultrasonically disperse Or the electrodeposition solution is obtained after stirring. The above-mentioned magnetic material containing platinum and nickel is used as a working electrode, graphite is used as a counter electrode, and the prepared electrodeposition solution is used as a solution system for electrodeposition. The electrodeposition voltage is controlled to be 7V, the current is 0.02A, and the deposition time is 10s. The surface is covered with a magnetic material substrate with a template of polymer microspheres. Mix water and potassium hydrogen phthalate at a mass ratio of 100:5, stir to form a unif...
Embodiment 4
[0078] The magnetic material containing platinum and nickel is used as the substrate, the oxide on the surface of the substrate is removed first, and then cleaned and dried. Mix polylactic acid microspheres and water at a mass ratio of 50:350, and stir to form an emulsion for later use; mix the prepared emulsion, water, and polyethylene glycol at a volume ratio of 20:400:1, and ultrasonically disperse Or the electrodeposition solution is obtained after stirring. The above-mentioned magnetic material containing platinum and nickel is used as a working electrode, graphite is used as a counter electrode, and the prepared electrodeposition solution is used as a solution system for electrodeposition. The electrodeposition voltage is controlled to be 2.5V, the current is 0.005A, and the deposition time is 30s. A magnetic material matrix whose surface is covered with a polymer microsphere template is obtained. Mix water and diammonium hydrogen citrate at a mass ratio of 100:2, stir ...
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