LITHIUM NICKEL-BASED COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES

LITHIUM NICKEL-BASED COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES

Positive electrode active material for solid-state batteries, comprising Li, M′, and oxygen, wherein M′ comprises:Ni in a content x between 50.0 mol % and 75.0 mol %,Co in a content y between 0.0 mol % and 40.0 mol %,Mn in a content z between 0.0 mol % and 40.0 mol %,dopants in a content a between 0...

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Bibliographische Detailangaben
Hauptverfasser: PAULSEN, Jens Martin, KUMAKURA, Shinichi, KANG, JiHoon, YANG, TaeHyeon, HYOUNG, JooEun, YANG, HyeJeong, OH, JinDoo
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Positive electrode active material for solid-state batteries, comprising Li, M′, and oxygen, wherein M′ comprises:Ni in a content x between 50.0 mol % and 75.0 mol %,Co in a content y between 0.0 mol % and 40.0 mol %,Mn in a content z between 0.0 mol % and 40.0 mol %,dopants in a content a between 0.0 mol % and 2.0 mol %,Zr in a content b between 0.1 mol % and 5.0 mol %,wherein x+y+z+a+b is 100.0 mol %,whereinZrA=b(x+y+z+b),wherein the positive electrode active material has a Zr content ZrB is expressed as molar fraction compared to the sum of molar fractions of Co, Mn, Ni, and Zr all as measured by XPS analysis,wherein ZrB/ZrA>50.0,the positive electrode active material comprising secondary particles having a plurality of primary particlessaid primary particles having an average diameter between 170 nm and 340 nm.