Sk Innovation Co., Ltd.

Sk on Co., Ltd.

Ji Won Na

Dong Ju Kim

Yong Seok Lee

Sang Won Bae

Myung Ro Lee

Jae Yeong Lee

Hyun Joong Jang

Jae Ram Kim

Sun Min Park

Ki Joo Eom

Yeon Hwa Song

A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes a cathode active material and a conductive material ID/IG is in a range from 0.5 to 1.25 in a Raman spectrum of the cathode active material layer. The cathode active material includes lithium metal oxide particles containing nickel and manganese and having a content of cobalt of less than 2 mol % among all elements except for lithium and oxygen.

Cathode for lithium secondary battery and lithium secondary battery including the same

An apparatus for degassing a battery cell includes: a gas suction portion providing negative pressure; a first tubular member connected to the gas suction portion, and having at least one suction port formed in a radial direction; a second tubular member connected to the gas suction portion, and provided to be coupled to the first tubular member; and a hemispherical cover coupled to the first tubular member and the second tubular member, respectively, wherein the hemispherical cover includes a first cover coupled to the first tubular member and a second cover coupled to the second tubular member, when the first tubular member and the second tubular member and are coupled, the first cover and the second cover may be disposed such that openings face each other, and the suction port may be disposed between the first cover and the second cover.

Apparatus for degassing battery cell

Growing community of inventors

Daejeon, South Korea

Ji Won Na