Cathode active material for lithium secondary battery
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United States of America Patent
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Oct 4, 2022
Grant Date -
Nov 7, 2019
app pub date -
Dec 8, 2017
filing date -
Dec 22, 2016
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Abstract
A cathode active material for a lithium secondary battery includes a nickel-based lithium metal oxide particle doped with Zr and Al. The nickel-based lithium metal oxide particle includes a core portion having a constant molar content of nickel, and a shell portion surrounding an outer surface of the core portion and having a concentration gradient in which a molar content of nickel gradually decreases in a direction from an interface with the core portion to an outermost periphery. The core portion and the shell portion are doped with Al and Zr.
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