Lg Chem, Ltd

Sk Innovation Co., Ltd.

Sk on Co., Ltd.

Sk Ie Technology Co., Ltd.

Suk Chin Lee

Suk Ky Chang

Hyun Jee Yoo

Yoon Gyung Cho

Jung Sup Shim

Kwang Jin Jeong

Hansu Kim

Gwi Ok Park

Joon-Sup Kim

Eunjun Park

Jeongbae Yoon

Donghan Youn

Dong Jae Chung

Min Sang Park

Jin Su Park

Jung Moon Sung

Hee Young Sun

Hyun Joo Song

Myoung Gu Park

Kyong Sik Kim

Seong Ho Chun

Provided are a negative electrode active material which includes negative electrode active material particles which includes a silicon oxide (SiO, 0<x≤2); and at least one lithium silicate selected from LiSiO, LiSiO, and LiSiOin at least a part of the silicon oxide. A signal generated in a region of 200 to 600 cmaccording to a Raman spectrum is subjected to deconvolution into three peaks, which are set to peak A, peak B, and peak C from lowest to highest of an absolute value of a wavenumber. Also disclosed are a method of preparing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.

Lithium-doped silicon-based oxide negative electrode active material, method of preparing the same, and negative electrode and secondary battery including the same

Provided are a negative electrode active material which includes negative electrode active material particles which includes a silicon oxide (SiO, 0<x≤2); and at least one lithium silicate selected from LiSiO, LiSiO, and LiSiOin at least a part of the silicon oxide. The negative electrode active material particles have a maximum peak position by a Raman spectrum of more than 460 cmand less than 500 cm. Also provided are a method of preparing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.

Provided are a polyimide-based film, a window cover film, and a display panel including the same. More particularly, a polyimide-based film having different surface properties of both surfaces is provided.

Polyimide film and flexible display panel including the same

An adhesive, and an encapsulated product and method of encapsulating an organic electronic device (OED) using the same are provided. The adhesive film serves to encapsulate the OED and includes a curable resin and a moisture absorbent, and the adhesive includes a first region coming in contact with the OED upon encapsulation of the OED and a second region not coming in contact with the OED. Also, the moisture absorbent is present at contents of 0 to 20% and 80 to 100% in the first and second regions, respectively, based on the total weight of the moisture absorbent in the adhesive.

Adhesive and method of encapsulating organic electronic device using the same

Provided is a lithium air battery in which a catalyst layer of a cathode contacting an electrolyte and using oxygen in the air as an active material is coupled to a membrane through which lithium ions pass, such that even though charge and discharge of the battery is repeated, the catalyst layer may not be detached, and a microporous polyolefin-based film is applied to the battery, such that a water-based electrolyte solvent may be prevented from being evaporated, thereby preventing performance deterioration due to repetition of the charge and discharge of the lithium air battery, and extending life span.

Lithium air battery

An adhesive film, and a product and method of encapsulating an organic electronic device (OED) using the same are provided. The adhesive film serves to encapsulate the OED and includes a curable hot-melt adhesive layer including a curable resin and a moisture absorbent, and the curable hot-melt adhesive layer includes a first region coming in contact with the OED upon encapsulation of the OED and a second region not coming in contact with the OED. Also, the moisture absorbent is present at contents of 0 to 20% and 80 to 100% in the first and second regions, respectively, based on the total weight of the moisture absorbent in the adhesive layer.

Adhesive film and method of encapsulating organic electrode device using the same

Growing community of inventors

Daejeon, South Korea

Suk Chin Lee