Lg Chem, Ltd

KeunWan An

Sung Kyun Chang

Song Taek Oh

Sin Young Park

Geun Chang Chung

Jung Seok Choi

Sin Kyu Kim

Jin Hyung Lim

Sun Jung Hwang

Provided are a positive electrode active material for improving an output and a lithium secondary battery including the same. Particularly, graphite and conductive carbon which have shapes and sizes different from each other, may be simultaneously coated on a mixed positive electrode material of a 3-component system lithium-containing metal oxide having a layered structure and expressed as following Chemical Formula 1 and LiFePOhaving an olivine structure as an conductive material to improve high resistance occurrence and conductivity reduction phenomenon of a 3-component system lithium metal oxide due to a difference between particle sizes and surface areas of the 3-component system lithium-containing metal oxide and LiFePOolivine.LiNiCoMnO, 0&#x2266;&#x3c;0.5, 0&#x3c;&#x3c;1, 0&#x3c;&#x3c;0.5&#x2003;&#x2003;[Chemical formula 1]

Lithium secondary battery positive electrode material for improving output characteristics and lithium secondary battery including the same

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Daejeon, South Korea

KeunWan An