Preparing method of lithium ionic cell 5V anode material spherical LiNi*Mn*O*
A technology for lithium ion batteries and cathode materials, which is applied in the field of energy materials and new material preparation, can solve problems such as low bulk density, and achieve the effects of simple process flow, improved electrochemical performance, and easy industrial production.
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Embodiment 1
[0030] Embodiment 1. preparation concentration is the manganese sulfate of 1.5mol / L and the nickel sulfate mixed aqueous solution of 0.5mol / L; Preparation concentration is the sodium carbonate aqueous solution of 2mol / L; Preparation concentration is the ammonia solution of 1mol / L. The three aqueous solutions were respectively input into a 3-liter reactor previously filled with deionized water with a metering pump for reaction. Control the flow rate of the nickel-manganese mixed solution and the sodium carbonate solution to be 150mL / h, adjust the flow rate of the ammonia solution to control the pH value of the reaction solution in the reactor to be 9±0.2. The temperature of the solution in the reactor was controlled to be 45°C. The mixed material liquid in the reactor is naturally overflowed and discharged. After continuous feeding for 20 hours, stop feeding, discharge the materials in the reactor, and use a centrifuge for solid-liquid separation. Wash the solid product with ...
Embodiment 2
[0031] Embodiment 2. preparation concentration is the manganese nitrate of 0.75mol / L and the nickel nitrate mixed aqueous solution of 0.25mol / L; Preparation concentration is the sodium bicarbonate aqueous solution of 1mol / L; Preparation concentration is the ethylenediammonium aqueous solution of 0.5mol / L. The three aqueous solutions were respectively input into a 3-liter reactor previously filled with deionized water with a metering pump for reaction. The flow rate of the nickel-manganese mixed solution and the sodium bicarbonate solution is controlled to be 180mL / h, and the flow rate of the ammonia solution is adjusted to control the pH value of the reaction solution in the reactor to be 8±0.2. The temperature of the solution in the reactor was controlled to be 60°C. The mixed material liquid in the reactor is naturally overflowed and discharged. After continuous feeding for 20 hours, stop feeding, discharge the materials in the reactor, and use a centrifuge for solid-liquid...
Embodiment 3
[0032] Embodiment 3. preparation concentration is the manganese acetate of 3.75mol / L and the nickel acetate mixed aqueous solution of 1.25mol / L; Preparation concentration is the potassium carbonate aqueous solution of 5mol / L; Preparation concentration is the ammonia solution of 2mol / L. The three aqueous solutions were respectively input into a 3-liter reactor previously filled with deionized water with a metering pump for reaction. Control the flow rate of nickel-manganese mixed solution and potassium carbonate solution to be 120mL / h, adjust the flow rate of ammonia solution to control the pH value of the reaction solution in the reactor to be 10±0.2. The temperature of the solution in the reactor was controlled to be 40°C. The mixed material liquid in the reactor is naturally overflowed and discharged. After continuous feeding for 20 hours, stop feeding, discharge the materials in the reactor, and use a centrifuge for solid-liquid separation. Wash the solid product with dei...
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