Lithium-rich manganese-based anode material for lithium ion battery and preparation method
A lithium-rich manganese-based lithium, ion battery technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as poor conductivity, rate performance bottlenecks, and decreased lattice order, achieving long service life, preparation The effect of simplifying the process and improving the rate performance
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Embodiment 1
[0011] The preparation process of the lithium-rich manganese-based lithium-ion battery positive electrode material of the present invention consists of the following steps: 1) first dissolving metal lithium salt, nickel salt, manganese salt and cobalt salt in deionized water, mixing to form a transparent solution, and then adding Add sucrose to the transparent solution, stir until it is transparent, then heat the solution, continuously stir and evaporate to remove the water in the solution, first form a sol, and finally obtain a gel; Calcining for 2h-4h to remove the organic components, and then calcining for the second time at 800°C-900°C for 15h-20h after grinding, to obtain the lithium-rich manganese-based lithium ion battery cathode material.
[0012] The added amount of the sucrose is 15% of the total molar weight of the total metal ions in the transparent solution.
[0013] The solution was heated to 75°C.
Embodiment 2
[0015] The preparation process of the lithium-rich manganese-based lithium-ion battery positive electrode material of the present invention consists of the following steps: 1) first dissolving metal lithium salt, nickel salt, manganese salt and cobalt salt in deionized water, mixing to form a transparent solution, and then adding Add sucrose to the transparent solution, stir until it is transparent, then heat the solution, continuously stir and evaporate to remove the water in the solution, first form a sol, and finally obtain a gel; Calcining for 2h-4h to remove the organic components, and then calcining for the second time at 800°C-900°C for 15h-20h after grinding, to obtain the lithium-rich manganese-based lithium ion battery cathode material.
[0016] The added amount of the sucrose is 25% of the total molar weight of the total metal ions in the transparent solution.
[0017] The solution was heated to 85°C.
[0018] Compared with the traditional co-precipitation method, ...
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