Lg Chem, Ltd

Samsung Sdi Co., Inc.

Lg Energy Solution, Ltd.

Soo Jung Kim

Byung Chun Park

Duk Hyun Ryu

Jae Bin Chung

Soonsung Suh

Seunguk Kwon

Min Gi Jeong

Byung Ouk Park

Nam Seon Kim

Han Saem Park

Jin Soo Kim

A binder composition for a lithium secondary battery and a lithium secondary battery including the binder, the binder composition including a copolymer that includes a first structure unit including amide, a second structural unit including carboxylic acid or a salt thereof, and a third structural unit including a morpholine ring or a thiomorpholine ring.

Binder composition for lithium secondary battery and lithium secondary battery including the same

Disclosed are a cathode active material for secondary batteries and a lithium secondary battery including the same. More particularly, a cathode active material for secondary batteries having an operating voltage area of 2.50 V to 4.35 V, including a lithium cobalt-based oxide and a surface-treated lithium nickel-based oxide and having high rolling density by a bimodal form in which an average diameter of the cobalt-based oxide and an average diameter of the lithium nickel-based composite oxide are different, and a lithium secondary battery including the same are disclosed.

Cathode active material for secondary battery and lithium secondary battery comprising the same

Disclosed are an electrode assembly for secondary batteries and a lithium secondary battery including the same. More particularly, an electrode assembly including a cathode, an anode and a separator, wherein the cathode includes a lithium cobalt-based oxide, and a lithium nickel-based composite oxide forming a coating layer over a surface of the lithium nickel-based composite oxide by reacting with a fluorine-containing polymer, as a cathode active material, the anode includes carbon and a silicon oxide as an anode active material, an operating voltage is 2.50 V to 4.35 V, and the cathode active material has high rolling density by a bimodal form in which an average diameter of the cobalt-based oxide and an average diameter of the lithium nickel-based composite oxide are different, and a lithium secondary battery including the same are disclosed. In addition, an electrode assembly including a lithium cobalt-based oxide surface-coated with alumina (AlO), and a lithium secondary battery including the same are disclosed.

Electrode assembly for secondary batteries and lithium secondary battery including the same

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Daejeon, South Korea

Soo Jung Kim