Nickel-rich and manganese-rich quaternary metal oxide materials as cathodes for lithium-ion and lithium-ion polymer batteries

Nickel-rich and manganese-rich quaternary metal oxide materials as cathodes for lithium-ion and lithium-ion polymer batteries

Positive electrode-active materials for use in lithium-ion and lithium-ion polymer batteries contain quaternary composite oxides of manganese, nickel, cobalt and aluminum where one of the four is present at levels of over 70 mol percent. For example, LixMn0,2 Ni0,7 Co0,05 On and LixMn0,7 Ni0,2 Co0,0...

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Bibliographische Detailangaben
Hauptverfasser: KIM, JAEHO, AGARWAL, NAVEEN, YANG, KAIYUAN, MC GRATH, KEVIN P
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
APPARATUS THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Positive electrode-active materials for use in lithium-ion and lithium-ion polymer batteries contain quaternary composite oxides of manganese, nickel, cobalt and aluminum where one of the four is present at levels of over 70 mol percent. For example, LixMn0,2 Ni0,7 Co0,05 On and LixMn0,7 Ni0,2 Co0,05 Al0,05 On. The composite oxides can be lithiated to form positive electrode-active materials that are stable over at least ten charge/discharge cycles at voltage levels over 4.8 volts, and have capacities of over 200 mAh/g. Methods for producing the materials and electrochemical cells and batteries that include the materials are also provided.