Vanadium-doped lithium nickel cobalt manganese oxide nanometer material and preparation method and application thereof
A lithium-nickel-cobalt-manganese and nanomaterial technology is applied in the fields of nanomaterials and electrochemistry to achieve the effects of high power, favorable market promotion and strong feasibility
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Embodiment 1
[0032] Vanadium doped lithium nickel cobalt manganese oxide LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 The preparation method of nanometer material, it comprises the steps:
[0033] 1) 2.6284g nickel sulfate (NiSO 4 ), 2.8115g cobalt sulfate (CoSO 4 ), 1.6395g manganese sulfate (MnSO 4 ) (Ni:Co:Mn=1:1:0.99) was added into 15mL of deionized water, stirred and dissolved at room temperature, and a wine red metal salt solution was obtained;
[0034] 2) take by weighing 3.1797g sodium carbonate (Na 2 CO 3 ) (sodium carbonate and metal salt molar ratio is 1:1) joins 15mL deionized water, stirs and dissolves at normal temperature, obtains transparent precipitant solution;
[0035] 3) Measure 0.42ml concentrated ammonia water (NH 3 ·H 2 0) add to 20ml deionized water for dilution, ammonia solution is used as bottom solution, metal salt solution and precipitant solution in step 1) and 2) are added simultaneously, control reaction system pH at about 8.0, obtain pink after sample dripping finish...
Embodiment 2
[0044] Vanadium doped lithium nickel cobalt manganese oxide LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 The preparation method of nanometer material, it comprises the steps:
[0045] 1) 2.6284g nickel sulfate (NiSO 4 ), 2.8115g cobalt sulfate (CoSO 4 ), 1.6395g manganese sulfate (MnSO 4 ) (Ni:Co:Mn=1:1:0.99) was added into 15mL of deionized water, stirred and dissolved at room temperature, and a wine red metal salt solution was obtained;
[0046] 2) Weigh 1.5899g sodium carbonate (Na 2 CO 3 ) and 1.1859g ammonium bicarbonate (NH 4 HCO 3 )(Na 2 CO 3 :NH 4 HCO 3 : metal salt=1:1:2) was added into 15mL deionized water, stirred and dissolved at normal temperature to obtain a transparent precipitant solution;
[0047] 3) Measure 0.42ml concentrated ammonia water (NH 3 ·H 2 0) add to 20ml deionized water for dilution, ammonia solution is used as bottom solution, metal salt solution and precipitant solution in step 1) and 2) are added simultaneously, control reaction system pH at abou...
Embodiment 3
[0053] Vanadium doped lithium nickel cobalt manganese oxide LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 The preparation method of nanometer material, it comprises the steps:
[0054] 1) 2.6284g nickel sulfate (NiSO 4 ), 2.8115g cobalt sulfate (CoSO 4 ), 1.6395g manganese sulfate (MnSO 4 ) (Ni:Co:Mn=1:1:0.99) was added into 15mL of deionized water, stirred and dissolved at room temperature, and a wine red metal salt solution was obtained;
[0055] 2) take by weighing 3.1797g sodium carbonate (Na 2 CO 3 ) (sodium carbonate and metal salt molar ratio is 1:1) joins 15mL deionized water, stirs and dissolves at normal temperature, obtains transparent precipitant solution;
[0056] 3) Measure 0.42ml concentrated ammonia water (NH 3 ·H 2 0) add to 20ml deionized water for dilution, ammonia solution is used as bottom solution, metal salt solution and precipitant solution in step 1) and 2) are added simultaneously, control reaction system pH at about 8.0, obtain pink after sample dripping fini...
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