METHOD FOR PRODUCING NICKEL COBALT COMPOSITE OXIDE, NICKEL COBALT COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR ALL-SOLID-STATE LITHIUM ION SECONDARY BATTERY AND ALL-SOLID-STATE LITHIUM ION SECONDARY BATTERY

METHOD FOR PRODUCING NICKEL COBALT COMPOSITE OXIDE, NICKEL COBALT COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR ALL-SOLID-STATE LITHIUM ION SECONDARY BATTERY AND ALL-SOLID-STATE LITHIUM ION SECONDARY BATTERY

Provided is a positive electrode for an all-solid-state lithium ion secondary battery which can reduce the internal resistance of the all-solid-state lithium ion secondary battery. The positive electrode includes an active material layer containing a positive electrode active material and a solid el...

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Bibliographische Detailangaben
Hauptverfasser: KAWAI, Kenta, SHIRAISHI, Taiga, YOSHIDA, Yasuhiro, MURAYAMA, Masahiro, MIYAMOTO, Yoshiteru
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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Beschreibung
Zusammenfassung:Provided is a positive electrode for an all-solid-state lithium ion secondary battery which can reduce the internal resistance of the all-solid-state lithium ion secondary battery. The positive electrode includes an active material layer containing a positive electrode active material and a solid electrolyte material. The positive electrode active material contains secondary particles comprising an aggregate of a plurality of primary particles containing a lithium transition metal composite oxide. A smoothness of the secondary particles is more than 0.73, and a degree of circularity of the secondary particles is more than 0.83.