Nickel-copper-iron-manganese precursor, preparation method and washing method thereof, positive electrode material and battery

The invention relates to the technical field of preparation of positive electrode materials, and discloses a nickel-copper-iron-manganese precursor, a preparation method and a washing method thereof, a positive electrode material and a battery. The washing method disclosed by the invention comprises...

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Hauptverfasser:	XU BIN, XING WANGYAN, ZHANG BIN, WANG ZHENGQIANG, ZUO MEIHUA, SUN HONG, JIANG XUEPING, YUE CHUANFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY
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creator	XU BIN XING WANGYAN ZHANG BIN WANG ZHENGQIANG ZUO MEIHUA SUN HONG JIANG XUEPING YUE CHUANFENG
description	The invention relates to the technical field of preparation of positive electrode materials, and discloses a nickel-copper-iron-manganese precursor, a preparation method and a washing method thereof, a positive electrode material and a battery. The washing method disclosed by the invention comprises the following steps: mixing an unwashed nickel-copper-iron-manganese precursor with a sodium bicarbonate solution, fully diffusing sulfur in the precursor into the solution, and performing solid-liquid separation to obtain a desulphurized precursor; and mixing the desulphurized precursor with pure water, so that sodium in the precursor is fully diffused into the solution, and then carrying out solid-liquid separation. The preparation method disclosed by the invention comprises the washing method. The nickel-copper-iron-manganese precursor disclosed by the invention is prepared by adopting the preparation method. The positive electrode material disclosed by the invention is prepared from the precursor. According to
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The washing method disclosed by the invention comprises the following steps: mixing an unwashed nickel-copper-iron-manganese precursor with a sodium bicarbonate solution, fully diffusing sulfur in the precursor into the solution, and performing solid-liquid separation to obtain a desulphurized precursor; and mixing the desulphurized precursor with pure water, so that sodium in the precursor is fully diffused into the solution, and then carrying out solid-liquid separation. The preparation method disclosed by the invention comprises the washing method. The nickel-copper-iron-manganese precursor disclosed by the invention is prepared by adopting the preparation method. The positive electrode material disclosed by the invention is prepared from the precursor. 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subjects	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY
title	Nickel-copper-iron-manganese precursor, preparation method and washing method thereof, positive electrode material and battery
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