Lithium-rich manganese-based material and application method thereof
A lithium-rich manganese-based, positive electrode material technology, applied in chemical instruments and methods, inorganic chemistry, nickel compounds, etc., can solve the problems of high manufacturing cost, short cycle life at high temperature, unstable performance of lithium batteries, etc., and achieve low manufacturing cost , stable performance, and the effect of overcoming poor high temperature characteristics
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[0029] Example one
[0030] A lithium-rich manganese material, specifically includes the following steps:
[0031] S1. Preparation: Some of the sulfate of nickel, manganese, cobalt, 50 parts of a hydrochloric acid solution, 40 sodium hydroxide solutions, and 40 sodium hydroxide solutions were prepared according to the weight of the mass.
[0032] S2. Dissolution: 50 parts of the hydrochloric acid solution in S1, the sulfate of nickel, manganese, and cobalt in the hydrochloric acid solution is dissolved in the proportion of 0.35: 0.6: 0.05 in a hydrochloric acid, and hydroxide is slowed slowly in the case of stirring The sodium solution is formed to form a precipitate and continue to add sodium hydroxide solution until the precipitate does not increase, forming solid-liquid mixture, preventing sodium hydroxide solution from adding excessive material waste;
[0033] S3. Adjusting pH: The solid-liquid mixture in S2 was slowly added to ammonia water, and stirred until the solid liquid...
Example Embodiment
[0050] Example 2
[0051] A lithium-rich manganese material, specifically includes the following steps:
[0052] S1. Preparation: Some of the sulfate of nickel, manganese, cobalt, 50 parts of a hydrochloric acid solution, 40 sodium hydroxide solutions, and 40 sodium hydroxide solutions were prepared according to the weight of the mass.
[0053] S2. Dissolution: 50 parts of the hydrochloric acid solution in S1, the sulfate of nickel, manganese, and cobalt in the hydrochloric acid solution is dissolved in the proportion of 0.35: 0.6: 0.05 in a hydrochloric acid, and hydroxide is slowed slowly in the case of stirring The sodium solution is formed to form a precipitate and continue to add sodium hydroxide solution until the precipitate does not increase, forming solid-liquid mixture, preventing sodium hydroxide solution from adding excessive material waste;
[0054] S3. Adjusting pH: The solid-liquid mixture in S2 was slowly added to ammonia water, and stirred until the solid liquid m...
Example Embodiment
[0071] Example three
[0072] A lithium-rich manganese material, specifically includes the following steps:
[0073] S1. Preparation: Some of the sulfate of nickel, manganese, cobalt, 50 parts of a hydrochloric acid solution, 40 parts of ammonia, 40 parts of sodium hydroxide solution, 40 parts of sodium hydroxide solution, 50 parts of sodium hydroxide solution, 50 parts of sodium hydroxide solution, 50 parts of sodium hydroxide solution, 50 parts of sodium hydroxide solution, 40 parts of sodium hydroxide solution are uniform and no Impurity, sodium hydroxide solution concentration of 30% -50%;
[0074] S2. Dissolution: 50 parts of the hydrochloric acid solution in S1, the sulfate of nickel, manganese, and cobalt in the hydrochloric acid solution is dissolved in the proportion of 0.35: 0.6: 0.05 in a hydrochloric acid, and hydroxide is slowed slowly in the case of stirring The sodium solution was formed, and the sodium hydroxide solution was formed and continued to add sodium hydro...
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