Industry-University Cooperation Foundation Hanyang University

Enerceramic Inc.

Bayerische Motoren Werke Aktiengesellschaft

Uchicago Argonne, LLC

Battery Solution

Basf Se Corporation

Hanyang Hak Won Co., Ltd.

Iucf-hyu

Yang-Kook Sun

Hyung-Joo Noh

Sung-June Youn

Un Hyuck Kim

Hyung Joo Noh

Jang-Wook Park

Khalil Amine

Jun Lu

Bruno Scrosati

Larry A Curtiss

Jusef Hassoun

Kah Chun Lau

Sung-Woo Oh

Gang-Jun Park

Zhengcheng Zhang

Stefano Passerini

Hyun-Joo Bang

Byung-Chun Park

Sang-Ho Park

Sang Hyuk Lee

Seung Min Oh

Giuseppe Antonio Elia

Franziska Mueller

Nikolaos Tsiouvaras

Peter Lamp

Sung Man Lee

Chong-seung Yoon

Jakub Reiter

Yun Jung Lee

Sung-Jin Kim

Benjamin Johannes Herbert Bergner

Dominic Bresser

Sangsik Jeong

Xiangyi Luo

Hyo-Jin Kim

Ulderico Ulissi

Won-Gi Kim

Seung-Min Oh

Ce Jin

Hun-Gi Jung

Do Wook Jun

Ho-Hyuk Lee

Dong Ju Lee

Georg Steinhoff

Sung June Youn

Heemin Kim

Geon-Tae Park

Hee Min Kim

Ji Yong Shin

Sung Joun Youn

Ji-Yong Shin

Franziska MÜLLER

Sang-Hyuk Lee

The present invention pertains to: a positive electrode active material precursor containing first secondary particle composed of an aggregate of a plurality of first primary particles, the positive electrode active material precursor including a first center portion represented by chemical formula 1 and a first surface portion represented by chemical formula 2, wherein the thickness of the first surface portion is 2-20% of the average radius of the positive electrode active material precursor; and a positive electrode active material containing the positive electrode active material precursor.

Positive electrode active material having surface portion doped with hetero elements, and method for producing same

Provided is a positive active material in which a compound containing lithium, a transition metal, and oxygen is doped with a doping metal, the positive active material including lithium (Li) layers, in which the lithium layers may include a first lithium layer including only lithium and a second lithium layer in which at least a part of the lithium of the first lithium layer is substituted with a transition metal.

Positive active material, method of preparing the same, and lithium secondary battery including the same

Particulate electrode active material with an average particle diameter in the range of from 2 to 20 μm (D50) having a general formula LiTMOwherein TM is a combination of Ni, Co and Al, and, optionally, at least one more metal selected from Mg, Ti, Zr, Nb, Ta, Mo, Mn, and W, with at least 80 mole-% of TM being Ni, and wherein x is in the range of from zero to 0.2, wherein the Co content at the outer surface of the secondary particles is higher than at the center of the secondary particles by a factor of at most 5 or by at most 30 mol-%, referring to TM.

Electrode active materials and method for their manufacture

Provided is an electrolyte of a lithium-sulfur battery. The electrolyte of the lithium-sulfur battery may include: a base electrolyte including lithium salt and an organic solvent; and an electrolyte additive, in which the electrolyte additive includes a metal nitrate.

Electrolyte and lithium-sulfur battery comprising same

A positive active material includes a secondary particle in which a plurality of primary particles is agglomerated. The positive active material is composed of, in which a compound containing nickel, lithium, and oxygen. An average angle between a reference line connecting a center portion of the secondary particle and a center portion of the primary particle provided at the outermost portion of the secondary particle and a particle orientation line penetrating the center portion of the primary particle provided at the outermost portion of the secondary particle and extending in parallel to an orientation direction of the primary particles is 12.2° or less. A concentration of the nickel in the compound is 59 mol % or more. The compound further includes an added metal composed of a different element from the nickel and the lithium. The added metal includes one or more of boron (B) and tungsten (W).

A lithium-air battery is provided, which includes a cathode having a gas diffusion layer containing a solid electronically conductive material coated with carbon black, the gas diffusion layer being at least partially filled with gaseous air, a separator having an electronically nonconducting filter material arranged between the anode and the cathode, the filter material being at least partially impregnated with a liquid electrolyte, and an anode containing a material selected from lithium metal, material alloyable with lithium, metal oxide, and mixtures thereof. Methods for making such battery and the use of such battery in a motor vehicle are also provided.

Low-polarization lithium oxygen battery

A method for manufacturing a positive active material is provided. The method includes forming a positive active material precursor including nickel, mixing and firing the positive active material precursor and lithium salt to form a preliminary positive active material particle, forming a coating material including fluorine on the preliminary positive active material particle by dry-mixing the preliminary positive active material particle with a coating source including fluorine, and manufacturing a positive active material particle by thermally treating the preliminary positive active material particle on which the coating material is formed.

Cathode active material, method for manufacturing same, and lithium secondary battery comprising same

Positive electrode active materials are provided. The positive electrode active materials include a primary particle formed of a plurality of metals including a first metal and a secondary particle formed of at least one of the primary particle. The secondary particle includes a center part, a surface part, a seed region where the primary particle having concentration gradient of the first metal is disposed, and a maintain region where the primary particle having constant concentration of the first metal is disposed, the seed region adjacent to the core part and a maintain region adjacent to the surface part, the length of the seed region in a direction from the center part to the surface part is 1 &#x3bc;m.

Positive electrode active material precursor for lithium secondary battery, positive electrode active material manufactured by using thereof, and lithium secondary battery including the same

In the positive electrode active material according to the inventive concept, A positive active material for lithium secondary battery comprises a particle comprising M1, M2, and Li, wherein the particle comprises a center, a surface, and an intermediate portion between the center and the surface, wherein M1 and M2 are selected from transition metal and are different each other, and wherein concentrations of M1 and M2 have continuous concentration gradients from the center to the intermediate portion.

Positive electrode active material and secondary battery comprising the same

A positive active material is provided. The positive active material may include lithium, an additive metal, and at least one of nickel, cobalt, manganese, or aluminum. The additive metal may include an element different from nickel, cobalt, manganese, and aluminum. An average content of the additive metal may be less than 2 mol %.

Positive electrode active material, method for manufacturing same, and lithium secondary battery containing same

A positive active material is provided. The positive active material may include lithium, an additive metal, and at least one of nickel, cobalt, manganese, or aluminum. The additive metal may include an element different from nickel, cobalt, manganese, and aluminum, and an average content of the additive metal may be less than 2 mol %.

A high energy density lithium-ion rechargeable battery cell is provided which includes an anode material containing a carbon-nanotube (CNT)-Si composite and a cathode material containing a core-shell gradient and/or concentration gradient nickel-based lithium metal oxide.

High energy lithium ion secondary battery with improved lifetime and energy density

The inventive concepts relate to a positive electrode active material for lithium secondary battery, and more particularly, relate to a positive electrode active material which includes a first concentration gradient portion, a second concentration gradient portion, and a first concentration maintained portion. The first and second concentration gradient portions have gradients of concentrations of nickel, manganese, and cobalt in the direction from the center to the surface, and the first concentration maintained portion has constant concentrations of nickel, manganese, and cobalt between the first concentration gradient portion and the second concentration gradient portion.

Positive electrode active material for lithium secondary battery

A lithium-air battery is provided which includes a gas diffusion layer that is at least partially filled with air, having an electrically conducting material as a cathode, an at least partially electrolyte-impregnated filter having an electronically non-conducting material as a separator, and an anode having a lithium metal, a lithium-metal alloy or lithium-oxide-metal mixture. The separator is between the anode and the cathode and the electrolyte includes a hydrophobic, ionic liquid and a lithium salt. The three phases, gaseous air, liquid electrolyte and solid conducting material, are in contact on at least one point of the gas diffusion layer. A method for producing such battery and the use of such battery in a motor vehicle are also provided.

Lithium-air battery

Growing community of inventors

Seoul, South Korea

Yang-Kook Sun