Positive electrode active material for lithium secondary battery

Provided is a novel positive electrode active material for a lithium secondary battery, with which output characteristics of a lithium secondary battery using the positive electrode active material operating at a charging voltage in a range exceeding 4.3 V can be further improved. This positive elec...

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Bibliographic Details
Main Authors YOSHIMI HATA, SHINYA KAGEI, NATSUMI SHIBAMURA, YANKO MARINOV TODOROV
Format Patent
LanguageEnglish
Published 10.02.2016
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:Provided is a novel positive electrode active material for a lithium secondary battery, with which output characteristics of a lithium secondary battery using the positive electrode active material operating at a charging voltage in a range exceeding 4.3 V can be further improved. This positive electrode active material for a lithium secondary battery includes positive electrode active material particles in which an A layer including C and at least one from among Ti, Al, and Zr is provided to the whole or portions of surfaces of lithium/manganese-containing composite oxide particles (also referred to as "core particles") which operate at a charging voltage in a range exceeding 4.3 V using metallic Li as a reference potential.
Bibliography:Application Number: GB20150019824