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

Provided are 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 use...

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Main Authors NAGANO, Rintaro, TOKUMASU, Koki, SUTO, Mikito, MATSUZAKI, Akira, MASUOKA, Hiroyuki, EMA, Mika, HAMANO, Yoshiaki
Format Patent
LanguageEnglish
French
German
Published 16.02.2022
Subjects
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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Summary:Provided are 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 consisting 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.
Bibliography:Application Number: EP20200788108