PRECURSOR, METHOD FOR MANUFACTURING PRECURSOR, POSITIVE ELECTRODE MATERIAL, METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL, AND LITHIUM-ION SECONDARY CELL

PRECURSOR, METHOD FOR MANUFACTURING PRECURSOR, POSITIVE ELECTRODE MATERIAL, METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL, AND LITHIUM-ION SECONDARY CELL

A precursor of a positive electrode material with which it is possible to obtain a lithium-ion secondary cell having an excellent discharge capacity and cycle characteristics, and a method for manufacturing the precursor. The precursor is a precursor of a positive electrode material used for a lithi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAGANO, Rintaro, TOKUMASU, Koki, SUTO, Mikito, MATSUZAKI, Akira, MASUOKA, Hiroyuki, EMA, Mika, HAMANO, Yoshiaki
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:A precursor of a positive electrode material with which it is possible to obtain a lithium-ion secondary cell having an excellent discharge capacity and cycle characteristics, and a method for manufacturing the precursor. The precursor is a precursor of a positive electrode material used for a lithium-ion secondary cell, wherein the precursor is at least one substance selected from the group made of nickel-manganese composite hydroxides and nickel-manganese composite oxides, the precursor contains nickel and manganese, the ratio of the nickel content relative to the nickel content and the manganese content is 0.45-0.60 inclusive in molar ratio, and the average valence of manganese is below 4.0.