Fe2O3/FeF3-2xOx/Fe<3+>,Ce<4+> doped zirconium fluoride layer structure positive electrode material of lithium battery and preparation method thereof
A technology of zirconium fluoride layer and cathode material, applied in battery electrodes, structural parts, circuits, etc., can solve problems such as failure, lattice mismatch, detachment of coating materials, etc., to improve volume change and improve comprehensive electrochemical performance , the effect of reducing the activation energy of ion migration
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Embodiment 1
[0015] Embodiment 1: Zr(NO 3 ) 4 ·5H 2 O, Zr(NO 3 ) 4 ·5H 2 Ammonium fluoride, Zr(NO 3 ) 4 ·5H 2 The amount of O species 0.7%Ce(NH 4 ) 2 (NO 3 ) 6 , Zr(NO 3 ) 4 ·5H 2 The amount of O substance 0.7% ferric nitrate nonahydrate, Zr(NO 3 ) 4 ·5H 2 O quality 0.7% glycerin and ethylene glycol are put into ball mill after mixing the mixed liquid of 1: 1 with the volume ratio, the mass ratio of ball mill and material is 20: 1, with the speed ball mill of 200 rev / mins 10 hours, ball mill After the completion, the material was taken out, washed with water three times, and dried in a drying oven at 100°C for 10 hours to obtain Fe 3+ , Ce 4+ Doped with zirconium fluoride; ferric nitrate nonahydrate and ammonium fluoride with a mass ratio of 1:3.0, Fe with a mass of 90 times the total mass of ferric nitrate nonahydrate and ammonium fluoride 3+ , Ce 4+ Tetra-n-butylammonium fluoride doped with 3% of the total mass of zirconium fluoride, ferric nitrate nonahydrate and amm...
Embodiment 2
[0016] Embodiment 2: Zr(NO 3 ) 4 ·5H 2 O, Zr(NO 3 ) 4 ·5H 2 Ammonium fluoride, Zr(NO 3 ) 4 ·5H 2 Amount of O species 3% Ce(NH 4 ) 2 (NO 3 ) 6 , Zr(NO 3 ) 4 ·5H 2 The amount of O substance 3% ferric nitrate nonahydrate, Zr(NO 3 ) 4 ·5H 2 0 quality 3% glycerin and ethylene glycol are put into ball mill after being mixed with the mixed liquid of 1: 1 with volume ratio, and the mass ratio of ball mill child and material is 20: 1, with the speed ball mill of 300 rev / mins 15 hours, ball mill After the completion, the material was taken out, washed with water three times, and dried in a drying oven at 110°C for 16 hours to obtain Fe 3+ , Ce 4+ Doped with zirconium fluoride; ferric nitrate nonahydrate and ammonium fluoride with a mass ratio of 1:3.3, Fe with a mass of 120 times the total mass of ferric nitrate nonahydrate and ammonium fluoride 3+ , Ce 4+ Tetra-n-butylammonium fluoride doped with 6% of the total mass of zirconium fluoride, ferric nitrate nonahydrate...
Embodiment 3
[0017] Embodiment 3: Zr(NO 3 ) 4 ·5H 2 O, Zr(NO 3 ) 4 ·5H 2 Ammonium fluoride, Zr(NO 3 ) 4 ·5H 2 The amount of O species 4.5% Ce(NH 4 ) 2 (NO 3 ) 6 , Zr(NO 3 ) 4 ·5H 2 The amount of O substance 4.5% ferric chloride hexahydrate, Zr(NO 3 ) 4 ·5H 2 Glycerol and ethylene glycol of 0 quality 4.5% are put into ball mill after being mixed with the mixed liquid of 1: 1 with volume ratio, and the mass ratio of ball mill child and material is 20: 1, with the speed ball mill of 400 rev / mins 20 hours, ball mill After the completion, the material was taken out, washed with water three times, and dried in a drying oven at 120°C for 20 hours to obtain Fe 3+ , Ce 4+ Doped with zirconium fluoride; ferric chloride hexahydrate and ammonium fluoride with a mass ratio of 1:3.6, and Fe with a mass of 170 times the total mass of ferric chloride hexahydrate and ammonium fluoride 3+ , Ce 4+ Tetramethylammonium fluoride doped with zirconium fluoride, ferric chloride hexahydrate and ...
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