A kind of template synthesis perovskite lithium ion battery negative electrode material and preparation method thereof
A technology for lithium-ion batteries and negative electrode materials, applied in battery electrodes, secondary batteries, chemical instruments and methods, etc., can solve the problems of slow migration speed of lithium ions, shorten the diffusion time of lithium ions, and difficulty in particle electron conduction, and achieve faster Lithium ion migration ability and the rate of redox reaction, the effect of reducing the resistance of electron migration and increasing the diffusion rate
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Embodiment 1
[0017] Embodiment 1: Lanthanum nitrate hexahydrate, lithium nitrate, cesium nitrate, manganese nitrate tetrahydrate, copper nitrate trihydrate, cadmium nitrate tetrahydrate are according to stoichiometric formula La 0.7 Li 0.2 Cs0.1 mn 0.8 Cu 0.1 Cd 0.1 o 3 The proportion of mixing, adding the amount of citric acid that is 5 times the amount of total metal ion substances and adding water to stir evenly to form a total metal ion concentration of 1mol L -1 The initial aqueous solution; mix and dissolve 6g acrylamide / 100mL water volume of acrylamide and 1g N,N'-methylenebisacrylamide / 100mL water volume N,N'-methylenebisacrylamide and water, and the acrylamide in the solution The amount of the substance is 0.5 times the amount of the total metal ion substance in the initial aqueous solution; use a polytetrafluoroethylene stirring paddle to stir at a speed of 1500rpm for 5 minutes, then raise it to 75°C at a speed of 5°C / min and maintain the temperature until it becomes a jell...
Embodiment 2
[0018] Embodiment 2: Lanthanum nitrate hexahydrate, lithium nitrate, cesium nitrate, manganese nitrate tetrahydrate, copper nitrate trihydrate, cadmium nitrate tetrahydrate are according to stoichiometric formula La 0.7 Li 0.2 Cs 0.1 mn 0.8 Cu 0.1 Cd 0.1 o 3 The proportion of mixing, the amount of substance added is citric acid which is 7 times the amount of total metal ion substance, and water is added to stir evenly to form a total metal ion concentration of 1.5mol L -1 The initial aqueous solution; mix and dissolve 6g acrylamide / 100mL water volume of acrylamide and 1g N,N'-methylenebisacrylamide / 100mL water volume N,N'-methylenebisacrylamide and water, and the acrylamide in the solution The amount of the substance is 0.8 times the amount of the total metal ion substance in the initial aqueous solution; use a polytetrafluoroethylene stirring paddle to stir at a speed of 1700rpm for 8 minutes, then raise it to 80°C at a speed of 8°C / min and maintain the temperature unti...
Embodiment 3
[0019] Embodiment 3: Lanthanum nitrate hexahydrate, lithium nitrate, cesium nitrate, manganese nitrate tetrahydrate, copper nitrate trihydrate, cadmium nitrate tetrahydrate are according to stoichiometric formula La 0.7 Li 0.2 Cs 0.1 mn 0.8 Cu 0.1 Cd 0.1 o 3 The proportion of mixing, the amount of substance added is citric acid 10 times the amount of total metal ion substances, and water is added to stir evenly to form a total metal ion concentration of 2.5mol L -1 The initial aqueous solution; mix and dissolve 6g acrylamide / 100mL water volume of acrylamide and 1g N,N'-methylenebisacrylamide / 100mL water volume N,N'-methylenebisacrylamide and water, and the acrylamide in the solution The amount of the substance is 1.1 times the amount of the total metal ion substance in the initial aqueous solution; use a polytetrafluoroethylene stirring paddle to stir at a speed of 1900rpm for 13 minutes, then raise it to 85°C at a speed of 9°C / min and maintain the temperature until it b...
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