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AssigneeMitsu Mining & Smelting Co., Ltd.
InventorsShinya Kagei, Natsumi Shibamura, Yanko Marinov Todorov, Yoshimi Hata
Estimating the term…
Provided is a novel positive electrode active material which can effectively suppress the quantity of gas generated by the reaction with an electrolytic solution. Proposed is a positive electrode active material for a lithium secondary battery including positive electrode active material particles obtained by equipping the entire surface or a part of a surface of lithium manganese-containing composite oxide particles (also referred to as the “core particles”) operating at a charging voltage in a region exceeding 4.3 V in a metal Li reference potential with a layer A containing at least titanium (Ti), aluminum (Al), zirconium (Zr), or two or more kinds of these.
A positive electrode active material for a lithium secondary battery comprising positive electrode active material particles, wherein the positive electrode active material particles comprises a layer (referred to as the “layer A”) comprising at least titanium (Ti), aluminum (Al), zirconium (Zr), or two or more kinds of these on the entire surface or a part of surface of lithium manganese-containing composite oxide particles (also referred to as the “core particles”) operating at a charging voltage in a region exceeding 4.3 V in a metal Li reference potential.
A positive electrode active material for a lithium secondary battery comprising positive electrode active material particles, wherein the positive electrode active material particles comprises a layer (referred to as the “layer A”) comprising at least titanium (Ti), aluminum (Al), or both of these on the entire surface or a part of surface of lithium manganese-containing composite oxide particles (also referred to as the “core particles”) operating at a charging voltage in a region exceeding 4.3 V in a metal Li reference potential.
Dependencies are inferred from the claim text.