Lg Energy Solution, Ltd.

Eun Jo

Wang Mo Jung

Sang Wook Lee

So Ra Baek

Eun Sol Lho

A positive electrode active material for a secondary battery which includes a nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 1 and Equation 2 below80 nm≤crystallite size≤150 nm  [Equation 1]Δ size(|crystallite size−crystallite size|)≤20  [Equation 2]

Positive electrode active material for secondary battery and lithium secondary battery including the same

A positive electrode active material for a secondary battery which includes a nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 1 and Equation 2 below80 nm≤crystallite size≤150 nm  [Equation 1]Δsize(|crystallite size−crystallite size|)≤20  [Equation 2]

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Daejeon, South Korea

Eun Jo