Lg Chem, Ltd

Lg Energy Solution, Ltd.

Sk on Co., Ltd.

Intellectual Discovery Co., Ltd.

Sang Min Park

Yoon Gyung Cho

Byung Chun Park

Se Woo Yang

Wang Mo Jung

Eun Suk Park

Seong Hoon Kang

Sang Wook Lee

Hyun Suk Kim

Kyung Yul Bae

Ho Suk Shin

Jik Soo Kim

Jae Hun Yang

Sang Bok Kim

Ji Hoon Ryu

Jae Min Lee

Sun Sik Shin

Hyun Jee Yoo

Ji Hye Kim

Myoung Lae Kim

Bo Ram Lee

Ji Hoon Choi

Seung Min Lee

Hong Kyu Park

Dong Hun Lee

Jung Sup Shim

Sung-Kyun Chang

Min Soo Park

Yu Na Shim

Hyeon Sik Choi

Ye Hoon Im

Sung Bin Park

Ji Sun Lee

Yang Gu Kang

Hyoung Sook Park

Ju Kyung Shin

Young Jo Yang

Tae Kyoung Lee

Jeong Bae Yoon

Minsuk Kang

Geungi Min

Sang Hye Shin

Young Gil Kim

Gyu Jong Bae

Kyoung Bin Im

Hye Lim Jeon

Seong Kyun Kang

Tae Gu Yoo

Gi Beom Han

Ho Seon Shin

Yeong Bong Mok

Kyung Su Oh

Sung Nam Moon

Chul Min Jeon

Sin Young Park

Min Suk Kang

Myung Han Lee

Seul Ki Kim

Jun Kyun Choi

Jin Tae Hwang

Hyun Sup Lee

Young Uk Park

Jin Hong Yang

Mi Jung Noh

Eun Sol Lho

Young Cheol Choi

Ban Seok Choi

Jung Moon Sung

Hwa Seok Chae

Ji Yeong Lee

Wen Xiu Wang

Jae Young Choi

Sang Eun Kim

Hyeong Ii Kim

Su Yeon Oh

Jae Ho Choi

Joong Yeop Do

A cathode active material for a lithium secondary battery according to embodiments of the present invention has a high-nickel composition and includes a lithium-nickel composite metal oxide particle in which lithium, nickel and a metal having an oxidation number of +2 are combined in a predetermined range. A cation disorder caused when a nickel ion is present at a lithium-ion site is reduced to improve structural stability of the cathode active material. An initial capacity and a battery efficiency of a lithium secondary battery can be improved using the cathode active material.

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

An encapsulation film, an organic electronic device comprising the same, and a method for manufacturing an organic electronic device using the same are provided. The encapsulation film has excellent reliability that allows forming a structure capable of blocking moisture or oxygen flowing into an organic electronic device from the outside, absorbs and disperses the stress according to panel bending caused by CTE mismatch, and overcomes the performance decrease due to reliability degradation, while preventing generation of bright spots in the organic electronic device.

Encapsulation film having excellent reliability, organic electronic device comprising the same, and method for manufacturing organic electronic device

A resin composition, a method for manufacturing the same and a use thereof are provided. The resin composition provides excellent thixotropy while having one or more excellent properties selected from thermal conductivity, adhesiveness, insulation properties, tensile characteristics, hardness and flame retardancy.

Resin composition

The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

A positive electrode active material includes a nickel-based lithium composite metal oxide having a Ni content of 80 atm % or greater among transition metals except lithium, and in the form of a single particle or pseudo-single particle. The nickel-based lithium composite metal oxide has a coating layer positioned on the surface thereof, wherein the coating layer contains cobalt. The positive electrode active material also satisfies [Equation 1] 1≤XY/Z≤3, wherein X is the molar number (mol %) of Co in the coating layer based on 100 moles of the nickel-based lithium composite metal oxide, Y is the average particle diameter (μm) of nodules of the nickel-based lithium composite metal oxide, and Z is D(μm) of the positive electrode active material, wherein Z is from 5 μm to 12 μm.

Positive electrode active material and positive electrode including the same

A lithium composite transition metal oxide includes nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes two or more kinds of first dopants selected from the group consisting of Zr, Al, V, Co, and Mg and two or more kinds of second dopants selected from the group consisting of Ti, Y, Sr, Nb, Ba, and Ca, and particles of the lithium composite transition metal oxide has a crystallite size of 170-300 nm.

Positive electrolyte active material for secondary battery, preparation method thereof, and lithium secondary battery including same

The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

A method of preparing a positive electrode active material for a lithium secondary battery includes mixing a transition metal hydroxide containing transition metals including nickel (Ni), cobalt (Co) and manganese (Mn), a lithium-containing raw material and a doping raw material including at least one doping element selected from the group consisting of Al, Mg, Co, V, Ti, Zr and W and performing a first calcination treatment thereon to prepare a lithium composite transition metal oxide doped with the doping element; and mixing the lithium composite transition metal oxide and a coating raw material including at least one coating element selected from the group consisting of Al, Mg, Co, Ti, Zr and B and performing a second calcination treatment thereon to prepare a positive electrode active material in which a coating layer containing the coating element is formed on the lithium composite transition metal oxide.

Method of preparing positive electrode active material for lithium secondary battery, positive electrode active material for lithium secondary battery, and positive electrode for lithium secondary battery and lithium secondary battery including the same

A positive electrode active material for a secondary battery is provided, which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein a particle of the lithium composite transition metal oxide includes a core portion and a resistance portion formed on a surface of the core portion, and is composed of a single particle, wherein the core portion has a layered crystal structure of space group R-3m, and the resistance portion has a cubic rock-salt structure of space group Fm-3m.

Positive electrode active material for secondary battery, method for preparing the same and lithium secondary battery comprising the same

The present application relates to a resin composition, a battery module comprising a cured product of the resin composition, a manufacturing method thereof and a battery pack. According to one example of the present application, injection processability of the resin composition can be improved, overloading of injection equipment can be prevented, and the battery module having excellent insulation properties can be provided.

Resin composition and battery module comprising the same

The present application relates to a composition, a battery module and a battery pack. According to one example of the present application, there is provided a urethane-based heat dissipation material capable of providing excellent thermal conductivity and storage stability.

Encapsulation film

A battery module and a method of manufacturing the same are disclosed herein. In some embodiments, a battery module includes a module case having an internal space formed by a top plate, a bottom plate and sidewalls of the module case, a plurality of battery cells disposed in the internal space, a first filler-containing cured resin layer in contact with both the top plate and the plurality of battery cells, and a second filler-containing cured resin layer in contact with both the bottom plate and the plurality of battery cells. The battery module can have excellent power relative to volume, while being manufactured in a simple process and at a low cost.

Battery module with filler-containing cured resin layers

Growing community of inventors

Daejeon, South Korea

Sang Min Park