Positive electrode active material for lithium secondary battery and method for preparing the same

Positive electrode active material for lithium secondary battery and method for preparing the same

A positive electrode active material for a lithium secondary battery is provided having a secondary particle formed by agglomerating a plurality of polycrystalline primary particles including a lithium composite metal oxide of Chemical Formula 1, wherein an average crystallite size of the primary pa...

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Hauptverfasser: Yoo, Tae Gu, Park, Younguk, Jung, Wang Mo, Park, Sungbin, Hwang, Jintae
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INSULATORS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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creator Yoo, Tae Gu
Park, Younguk
Jung, Wang Mo
Park, Sungbin
Hwang, Jintae
description A positive electrode active material for a lithium secondary battery is provided having a secondary particle formed by agglomerating a plurality of polycrystalline primary particles including a lithium composite metal oxide of Chemical Formula 1, wherein an average crystallite size of the primary particle is 180 to 400 nm, a particle size D50 of the primary particle is 1.5 to 3μm, and the primary particle is doped or surface-coated with at least one element M selected from the group consisting Al, Ti, Mg, Zr, Y, Sr, and B in an amount of 3,800 to 7,000 ppm:Lia(NixMnyCozAw)O2+b   [Chemical Formula 1].
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subjects BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INSULATORS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
title Positive electrode active material for lithium secondary battery and method for preparing the same
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