Lithium-ion battery cathode material with super-lattice ordered structure and synthesizing method thereof
A lithium-ion battery and ordered structure technology, applied in battery electrodes, secondary batteries, structural parts, etc., can solve the problems of material particle fragmentation, low lithium ion conductivity, poor structural stability, etc., and achieve high magnification The effect of high performance, simple operation, and high specific capacity
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[0053] Example 1:
[0054] A method for synthesizing a lithium ion layered battery positive electrode material with a superlattice ordered structure, the specific steps of the method are as follows:
[0055] First, prepare a nickel sulfate and cobalt sulfate mixed metal salt solution with a molar ratio of Ni:Co=4:1 and a total concentration of 2.0mol / L, and prepare a molar ratio of Ni:Mn=4:1 and a total concentration of 2.0mol / L. L of nickel sulfate and manganese sulfate mixed metal salt solution, 4.0mol / L complexing agent ammonia solution, 2.0mol / L precipitating agent sodium hydroxide solution.
[0056] Take 4.0mol / L of complexing agent ammonia solution diluted into 0.5mol / L ammonia solution and add it to the reaction kettle as the reaction bottom liquid. in lazy N 2 Under the protection of the atmosphere, the reaction bottom liquid was heated to 50 ° C, and then the two mixed metal salt solutions, the ammonia solution, and the sodium hydroxide solution were heated at a rat...
Example Embodiment
[0065] Example 2:
[0066] A method for synthesizing a lithium ion layered battery positive electrode material with a superlattice ordered structure, the specific steps of the method are as follows:
[0067] First, prepare a nickel sulfate and cobalt sulfate mixed metal salt solution with a molar ratio of Ni:Co=3:2 and a total concentration of 2.0mol / L, and prepare a molar ratio of Ni:Mn=3:2 and a total concentration of 2.0mol / L. L of nickel sulfate and manganese sulfate mixed metal salt solution, 4.0mol / L complexing agent ammonia solution, 2.0mol / L precipitating agent sodium hydroxide solution.
[0068] Take 4.0mol / L of complexing agent ammonia solution diluted into 0.4mol / L ammonia solution and add it to the reaction kettle as the reaction bottom liquid. in lazy N 2 Under the protection of the atmosphere, the reaction bottom liquid was heated to 60 °C, and then the two mixed metal salt solutions, ammonia solution, and sodium hydroxide solution were heated at the rate of 1....
Example Embodiment
[0071] Example 3:
[0072] A method for synthesizing a lithium ion layered battery positive electrode material with a superlattice ordered structure, the specific steps of the method are as follows:
[0073] First, prepare a nickel sulfate and cobalt sulfate mixed metal salt solution with a molar ratio of Ni:Co=3:2 and a total concentration of 2.0mol / L, and prepare a molar ratio of Ni:Mn=2:2 and a total concentration of 2.0mol / L. L of nickel sulfate and manganese sulfate mixed metal salt solution, 2.0mol / L complexing agent ammonia solution, 2.0mol / L precipitating agent sodium hydroxide solution.
[0074] Take 2.0mol / L complexing agent ammonia solution diluted to 0.5mol / L ammonia solution and add it to the reaction kettle as the reaction bottom liquid. in lazy N 2 Under the protection of the atmosphere, the reaction bottom liquid was heated to 80 ° C, and then the two mixed metal salt solutions, ammonia solution, and sodium hydroxide solution were mixed at the rate of 1.0mL / m...
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