Lg Chem, Ltd

Lg Energy Solution, Ltd.

Hye Youn Lee

Kyoung Ho Kim

Hoe Jin Hah

Ji Hye Park

Il Hong Kim

Jooyong Song

Su Rim Lee

Chae Ah Kim

Kyung Min Lee

Sung Wook Jeon

Jooyoung Song

A negative electrode and a secondary battery including the negative electrode, the negative electrode includes a negative electrode active material layer containing negative electrode active material particles and an additive. The additive is present in an amount of 1.8 parts by weight to 3.2 parts by weight based on 100 parts by weight of the negative electrode active material particles. The additive includes at least one selected from the group consisting of LiAlTi(PO), wherein 0<m1≤1, LiAlGe(PO), wherein 0<m2≤1, LiLaTiO, wherein 0.2≤m3≤0.05, and LiLaZrO, wherein 0.2≤m4≤0.05 (LATP, LAGP, LLTO, and LLZO, respectively).

Negative electrode and secondary battery including the same

Disclosed are a secondary battery comprising a negative electrode composed of two or more negative electrode plates and a method of manufacturing the secondary battery, wherein each of the negative electrode plates includes a lithium by-product layer formed through pre-lithiation reaction on a negative electrode current collector coated with a negative electrode active material, wherein an inorganic substance layer is formed on a negative electrode tab that is extended from an end at one side of the negative electrode current collector and is composed of an active material-non-coated portion not coated with the negative electrode active material, and negative electrode tabs of the negative electrode plates are electrically connected with one negative electrode lead to form a negative electrode terminal.

Secondary battery including high-capacity negative electrode and method of manufacturing the same

Disclosed herein is a cylindrical battery including an electrode assembly (jelly roll) including a positive electrode, a separator, and a negative electrode, a cylindrical container including a receiving part for receiving the electrode assembly together with an electrolytic solution, a cap assembly mounted to an open upper end of the cylindrical container, a safety vent mounted in the cap assembly, and a pressurization part located between the safety vent and the receiving part, the pressurization part communicating with the receiving part, the pressurization part being configured to apply a predetermined pressure, which is generated by gas, to the receiving part, wherein the positive electrode includes a lithium composite transition metal oxide represented by Formula 1 in the specification as a positive electrode active material.

Cylindrical battery including pressurizing part and method of manufacturing the same

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Daejeon, South Korea

Hye Youn Lee