Lg Chem, Ltd

Lg Energy Solution, Ltd.

Korea Advanced Institute of Science and Technology

Yonsei University

Postech Academy-industry Foundation

Sogang University Research Foundation

Doo Kyung Yang

Kwonnam Sohn

Chul Haeng Lee

Eunkyung Cho

Taek Gyoung Kim

Kyoung Ho Ahn

Intae Park

Suenghoon Han

Yun Kyoung Kim

Young Min Lim

Jieun Song

Dongwook Koh

Charles Kiseok Song

Min Soo Kim

Kihyun Kim

Jung Hoon Lee

Soohyun Kim

Sung Hoon Yu

Kyung Mi Lee

Yoo Sun Kang

Dongwook Lee

Ki Young Kwon

Changhoon Lee

Sung Soo Yoon

Yoo Seok Kim

Seungbo Yang

Shul Kee Kim

In Tae Park

Seong Ho Lee

Min Chul Jang

Gwang Yeon Kim

Kyung Oh Kim

Jong Hyun Chae

Yi Jin Jung

Jin Hyun Park

Jong Ho Jeon

Dongseok Shin

Shulkee Kim

Seung Yoon Yang

Choonghyeon Lee

Jinwoo Lee

Jeong Woo Oh

Jiwon Kim

Yu Ha An

Yu Mi Kim

Jun Hyuk Moon

Jung Don Suk

Eun Kyung Park

Chul-Haeng Lee

Sungwon Hong

Eui Tae Kim

Byoung Kuk Son

Moo Whan Shin

Jungmi Moon

Myeong Jun Song

Il To Kim

Joo Hyeong Lee

Donghee Gueon

Sun Sik Shin

Song Taek Oh

Jeong Ae Yoon

Jong-Ho Jeon

Haeshin Lee

Sung-Hoon Yu

Dong Wook Lee

Sung Won Hong

Gi Su Park

Min-Jung Jou

Jeongae Yoon

Chang Hoon Lee

Sunjin Kim

Sun Mi Jin

Byounghyo Jung

Jung Hun Choi

Minchul Jang

Min Jung Kim

Byoungkuk Son

Gyo Hyun Hwang

Jonghyun Chae

Junghun Choi

Da Young Sung

Han Na Chi

Kwon Nam Sohn

Changhun Park

Jong Mo Jung

Jang Wook Choi

Chui Haeng Lee

Chan Yeup Chung

Jaegil Lee

Youngcheol Choi

Su Hwan Kim

Yoo-Seok Kim

Yoo-Sun Kang

Jongwook Jung

Yeyoung Ha

MiRa Im

Jae Sung Han

Ji Hee Park

Byoung Hyo Jung

Sujee Kwon

A binder for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery including the same. The binder includes a copolymer having a first polymerization unit derived from a first monomer and a second polymerization unit derived from a second monomer. The first monomer is alkyl acrylate having at least one functional group or alkyl methacrylate having at least one functional group. The second monomer is acrylic acid or methacrylic acid. The at least one functional group in the first monomer is a functional group having a single or repeated structure of a hydroxy group substituted or unsubstituted with alkyl having 1 to 4 carbon atoms, a thiol group substituted or unsubstituted with alkyl having 1 to 4 carbon atoms, or an amino group substituted or unsubstituted with alkyl having 1 to 4 carbon atoms. The second polymerization unit may have a lithiated form.

Binder for lithium-sulfur secondary battery and lithium-sulfur secondary battery including same

An electrode for a lithium secondary battery including LiOH, a method of manufacturing the same, and a lithium secondary battery including said electrode are provided. The electrode for a lithium secondary battery including LiOH is such that a SEI film is efficiently formed on the electrode surface.

Lithium secondary battery electrode comprising LiOH, manufacturing method therefor, and lithium secondary battery comprising electrode

A lithium-sulfur secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte solution are provided. The positive electrode has an SC factor value of 0.45 or more. The electrolyte solution includes a solvent and a lithium salt, and the solvent includes a first solvent having a DVfactor value of 1.7 or less, and a second solvent which is a fluorinated ether-based solvent.

Lithium-sulfur secondary battery

A binder for a lithium-sulfur secondary battery cathode, a composition containing the same, and an acrylic binder capable of forming a cross-linked network and a use thereof. The binder contains a polar functional group capable of strongly interacting with sulfur.

Acrylic binder for lithium-sulfur secondary battery cathode and use thereof

An electrolyte solution for a lithium-sulfur battery including: a lithium salt, which includes an anion having a donor number of 15 kcal/mol of more, and a non-aqueous solvent, and a lithium-sulfur battery including the same.

Electrolyte solution for lithium-sulfur battery and lithium-sulfur battery comprising same

A carbon-sulfur composite including a carbonized metal-organic framework (MOF); and a sulfur compound introduced to at least a part of an outside surface and an inside of the carbonized metal-organic framework, wherein the carbonized metal-organic framework has a specific surface area of 1000 m/g to 1500 m/g, and the carbonized metal-organic framework has a pore volume of 0.1 cc/g to 10 cc/g, and a method for preparing the same.

Carbon-sulfur composite, preparation method therefor, and lithium secondary battery comprising same

Discussed is a sulfur-carbon composite, a method for preparing the same, and a positive electrode for a lithium secondary battery and a lithium secondary battery including the same.

Sulfur-carbon composite, method for producing same, and lithium secondary battery including same

A binder, an electrode and a lithium secondary battery comprising the same, wherein the binder includes a first block including a polymer containing functional groups substitutable with lithium ions and a second block. The second block may include a polymer containing oxygen atoms in the main chain. With such a binder, it is possible to prevent the agglomeration of the slurry for preparing the electrode, thereby preventing the occurrence of cracks on the surface of the electrode and improving the life characteristics of the lithium secondary battery.

Binder, and electrode and lithium secondary battery comprising same

A binder for preparing a positive electrode of a lithium secondary battery, and a method for preparing a positive electrode using the same. The binder includes two or more different lithium-substituted polyacrylic acids with different molecular weights. The lithium-substituted polyacrylic acids include two different lithium-substituted polyacrylic acids differing in weight average molecular weight by 500,000 or more from each other.

Binder for manufacturing positive electrode of lithium secondary battery and method for manufacturing positive electrode by using same

A sulfur-carbon composite including a porous carbon material; and sulfur coated on at least a portion of an inside and a surface of the porous carbon material, wherein a pore volume of the sulfur-carbon composite is 0.04 to 0.400 cm/g and a specific surface area of the sulfur-carbon composite is 4.0 to 30 m/g, and a method for preparing the same.

Sulfur-carbon composite, preparation method therefor, and lithium secondary battery comprising same

A lithium-sulfur secondary battery is disclosed, and in particular, a lithium-sulfur secondary battery in which a positive electrode includes a sulfur-carbon composite including a microporous carbon material and sulfur, or a conductive additive including a carbon material having high specific surface area. By specifying conditions of the positive electrode and an electrolyte liquid, energy density may be enhanced compared to existing lithium-sulfur secondary batteries.

A separator for a lithium-sulfur battery and a lithium-sulfur battery including the same is provided. More particularly, a separator for a lithium-sulfur battery including a porous substrate; and a coating layer present on at least one surface of the porous substrate, wherein the coating layer includes a polymer and a graphitic carbon-based compound, wherein the polymer includes a main chain with a functional group having a non-covalent electron pair present in the main chain and a side chain with an aromatic hydrocarbon group present in the side chain.

Separator for lithium-sulfur battery and lithium-sulfur battery including same

A ceria-carbon-sulfur (CeO—C—S) composite including a ceria-carbon (CeO—C) composite in which cylindrical carbon materials having ceria (CeO) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.

Ceria-carbon-sulfur composite, method for preparing same, and positive electrode and lithium-sulfur battery comprising same

A method for pre-treating lithium metal for a lithium secondary battery including stripping a surface oxide film formed on a surface of the lithium metal by discharging the battery, and a plating lithium metal on the surface of the lithium metal, from which the surface oxide film has been stripped, by charging the battery.

Method for preprocessing lithium metal for lithium secondary battery

A negative electrode for a lithium secondary battery including a lithium metal layer; a first protective layer formed on a surface of the lithium metal layer; and a second protective layer formed on a surface of the first protective layer opposite the lithium metal layer, wherein the first protective layer and the second protective layer are different from each other in at least one property selected from the group consisting of ion conductivity and electrolyte uptake.

Negative electrode for lithium secondary battery and lithium secondary battery comprising same

Growing community of inventors

Daejeon, South Korea

Doo Kyung Yang