Preparation method of high-compaction density 523-type ternary positive electrode material
The invention provides a preparation method of a high-compaction density 523-type ternary positive electrode material, and belongs to the technical field of preparation of a lithium ion battery positive electrode material. A high-compaction density and low-pH value lithium nickel cobalt manganate NC...
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creator | QI SHIQING ZHI FUPENG ZHU JINIAN MA QIAN HAO YALI WANG JUANHUI CHANG QUANZHONG WAN YUNYUN |
description | The invention provides a preparation method of a high-compaction density 523-type ternary positive electrode material, and belongs to the technical field of preparation of a lithium ion battery positive electrode material. A high-compaction density and low-pH value lithium nickel cobalt manganate NCM523-type ternary positive electrode is in a spherical shape, grain D50 of secondary agglomeration particle is 10-12 micrometers, and the size of primary single-crystal particle is 1.5-3 micrometers. The preparation method of the high-compaction density 523-type ternary positive electrode material comprises the steps of doping 0.1-1.0% of metal oxide into a mixture of lithium carbonate and a ternary precursor LiNiCoMn(OH) , performing primary sintering, paste washing, secondarysintering, breakage, iron removal, sieving and mixing, and finally, obtaining an NCM523-type ternary positive electrode material. By the method, the compaction density of the NCM523-type ternary positive electrode material is e |
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A high-compaction density and low-pH value lithium nickel cobalt manganate NCM523-type ternary positive electrode is in a spherical shape, grain D50 of secondary agglomeration particle is 10-12 micrometers, and the size of primary single-crystal particle is 1.5-3 micrometers. The preparation method of the high-compaction density 523-type ternary positive electrode material comprises the steps of doping 0.1-1.0% of metal oxide into a mixture of lithium carbonate and a ternary precursor LiNi<0.5>Co<0.2>Mn<0.3>(OH) , performing primary sintering, paste washing, secondarysintering, breakage, iron removal, sieving and mixing, and finally, obtaining an NCM523-type ternary positive electrode material. 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A high-compaction density and low-pH value lithium nickel cobalt manganate NCM523-type ternary positive electrode is in a spherical shape, grain D50 of secondary agglomeration particle is 10-12 micrometers, and the size of primary single-crystal particle is 1.5-3 micrometers. The preparation method of the high-compaction density 523-type ternary positive electrode material comprises the steps of doping 0.1-1.0% of metal oxide into a mixture of lithium carbonate and a ternary precursor LiNi<0.5>Co<0.2>Mn<0.3>(OH) , performing primary sintering, paste washing, secondarysintering, breakage, iron removal, sieving and mixing, and finally, obtaining an NCM523-type ternary positive electrode material. By the method, the compaction density of the NCM523-type ternary positive electrode material is e</abstract><oa>free_for_read</oa></addata></record> |
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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 high-compaction density 523-type ternary positive electrode material |
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