Samsung Electronics Co., Ltd.

Seoul National University

Myongji University Industry and Academia Cooperation

Hyunpyo Lee

Dongmin Im

Hyukjae Kwon

Heungchan Lee

Dongjoon Lee

Mokwon Kim

Sangbok Ma

Taeyoung Kim

Wonsung Choi

Donghwa Seo

Hyunjin Kim

Jungock Park

Kihyun Kim

Kyounghwan Choi

Myungjin Lee

Jinsoo Park

Joonhee Kim

Jaeyoon Lee

Victor Roev

Hyuk Jae Kwon

Minsik Park

Eunha Park

Jeong Gil Seo

Kisuk Kang

Sang Bok Ma

Minhoo Byeon

Yeonsu Jung

Dong-Hwa Seo

Alan Christian Lim

Byoungkon Park

Youngjoon Bae

Seungpyo Han

Young Shik Cho

Chong Rae Park

A metal-air battery including a positive electrode layer that includes a lithium-ion conductive solid electrolyte membrane and a porous electroconductive metal oxide represented by Formula 1, wherein the electroconductive metal oxide has a specific surface area of about 0.01 m/g to about 1000 m/g,LRuO  Formula 1wherein, in Formula 1,

Positive electrode having excellent alkali resistance, method of manufacturing the same, and metal-air battery and electrochemical device including the positive electrode

A solid electrolyte includes: a first electrolyte layer including an inorganic lithium ion conductor; and a second electrolyte layer disposed on at least one side of the first electrolyte layer and including a compound represented by Formula 1Li(HfM)(POQ)  Formula 1wherein in Formula 1, M is at least one of a monovalent to a hexavalent element, wherein 0<a≤1, 0≤x<⅓, and 0≤y<2, and Q is F, Cl, Br, I, a pseudohalogen, or a combination thereof.

Solid electrolyte, preparation method thereof, lithium air battery including the solid electrolyte, and electrochemical device including the solid electrolyte

A perovskite material represented by Formula 1:LiAMO  Formula 1

Perovskite material, method of preparing the same, and secondary battery including the perovskite material

A composite solid electrolyte includes: a solid electrolyte; and a protective layer on a surface of the solid electrolyte, wherein the protective layer comprises a compound of Formula 1LiM1M2O  Formula 1wherein in Formula 1,

Composite solid electrolyte, electrochemical cell including the same, and method of preparing the composite solid electrolyte

A cathode for a metal-air battery, the cathode including a mixed conductor; and first pores having a size of about 1 micrometer (μm) or greater, wherein an amount of the first pores is about 30 volume percent (volume %) or greater, with respect to a total volume of pores in the cathode, and a total porosity of the cathode is about 50% or greater, based on a total volume of the cathode.

Cathode for metal-air battery, preparing method thereof, and metal-air battery comprising the same

A cathode configured to use oxygen as a cathode active material, the cathode comprising a lithium-containing metal oxide comprising at least one of:

Cathode and lithium-air battery including the cathode

A cathode configured to use oxygen as a cathode active material includes: a porous film including a metal oxide, where a porosity of the porous film is about 50 volume percent to about 95 volume percent, based on a total volume of the porous film, and an amount of an organic component in the porous film is 0 to about 2 weight percent, based on a total weight of the porous film.

Cathode, lithium-air battery comprising the same, and method of preparing the cathode

A metal-air battery includes: a cell module configured to generate electricity by oxidation of a metal and reduction of oxygen and water; a water vapor supply unit configured to supply a first water vapor to the cell module; a moisture storage unit configured to supply a first moisture at a first flow rate to the water vapor supply unit; and a condensing unit configured to supply a second moisture at a second flow rate to the water vapor supply unit by condensing the water vapor condensed from the cell module.

Metal-air battery and operating method of the metal-air battery

A solid electrolyte including: a compound represented by Formula 1,LiM1M2(POX)&#x2003;&#x2003;Formula 1

Solid electrolyte, preparation method thereof, lithium-air battery including the solid electrolyte, and electrochemical device including the solid electrolyte

Provided is a metal-air battery including a cathode having a space which may be filled with a metal oxide formed during a discharge of the metal-air battery and thus having improved energy density and lifespan. The cathode for the metal-air battery includes a plurality of cathode materials, a plurality of electrolyte films disposed on surfaces of the plurality of cathode materials, and a plurality of spaces which are not occupied by the plurality of cathode materials and the plurality of electrolyte films. A volume of the plurality of spaces may be greater than or equal to a maximum space of a metal oxide formed during a discharge of the metal-air battery.

Cathode for metal-air battery including spaces for accommodating metal oxides formed during discharge of metal-air battery and metal-air battery including the same

A cathode configured to use oxygen as a cathode active material, the cathode including: a porous film, wherein the porous film includes a metal oxide, and wherein a surface of the porous film has root mean square (RMS) roughness (Rq) of about 0.01 micrometer to about 1 micrometer, and a porosity of the porous film is about 50 volume percent to about 99 volume percent, based on a total volume of the porous film.

A metal air battery apparatus includes: a metal air cell including a cathode layer including pores, an anode layer facing the cathode layer, and a solid electrolyte layer between the cathode layer and the anode layer; and a controller configured to control at least one of a charge rate or a discharge rate of the metal air cell based on a porosity of the cathode layer.

Metal air battery, method of manufacturing the same, apparatus including the metal air battery, and system and method of controlling the metal air battery

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The disclosure is A first apparatus for estimating a delay time in a synchronization system is provided. The first apparatus includes a detector configured to detect a request signal generated by a second apparatus, and a generator configured to generate a response signal corresponding to the request signal and output the response signal. The request signal is received through a cable from the second apparatus and the response signal is transmitted to the second apparatus through the cable.

Apparatus in synchronization system and methods for operating the same

A cathode configured to use oxygen as a cathode active material includes: a porous electrically conductive framework substrate; and a coating layer disposed on a surface of the porous electrically conductive framework substrate, wherein the coating layer includes at least one of a lithium-containing metal oxide or a composite including a lithium-containing metal oxide, and wherein a porosity of the porous electrically conductive framework substrate is about 70 percent to about 99 percent, based on a total volume of the cathode, and an areal resistance of the porous electrically conductive framework substrate is about 0.01 milliohms per square centimeter to about 100 milliohms per square centimeter.

Growing community of inventors

Seoul, South Korea

Hyunpyo Lee