Preparation method of multi-layer coated high-nickel ternary material

Preparation method of multi-layer coated high-nickel ternary material

The invention discloses a preparation method of a multi-layer coated high-nickel ternary material. The preparation method comprises the following steps: preparing a high-nickel ternary material as a solute to be compounded with a solvent to obtain a suspension; adding dopamine hydrochloride and an a...

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Hauptverfasser: CAI JINMING, HAO ZHENLIANG, CHEN QIZAN
Format: Patent
Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator CAI JINMING
HAO ZHENLIANG
CHEN QIZAN
description The invention discloses a preparation method of a multi-layer coated high-nickel ternary material. The preparation method comprises the following steps: preparing a high-nickel ternary material as a solute to be compounded with a solvent to obtain a suspension; adding dopamine hydrochloride and an alkaline regulator, wherein the dopamine hydrochloride forms a macromolecular adhesion layer on the surface of the high-nickel ternary material under an alkaline condition, and lithium ions can freely pass through the macromolecular adhesion layer; forming a titanium metal oxide precursor layer on the surface of the adhesion layer; dopamine hydrochloride is added again to form the macromolecule adhesion layer on the surface of the titanium metal oxide precursor layer, and the surface is sequentially coated with the dopamine hydrochloride; adding an acidic graphene oxide solution to obtain a mixed solution; carrying out spray granulation treatment on the mixed solution to obtain a coated and modified high-nickel tern
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Preparation method of multi-layer coated high-nickel ternary material
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