公开(公告)号：US20180241042A1

公开(公告)日：2018-08-23

申请号：US15846855

申请日：2017-12-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Won IL CHO ,  In Wook NAH ,  In Hwan OH ,  Van Dung DO ,  Mun Sek KIM

IPC: H01M4/62 ,  H01M4/134 ,  H01M4/38 ,  H01M4/1395 ,  H01M4/04 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/36 ,  C09D4/00

CPC classification number: H01M4/628 ,  C09D4/00 ,  H01M4/0402 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/38 ,  H01M4/382 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/4235 ,  H01M12/08 ,  H01M2004/027 ,  H01M2300/0037 ,  Y02E60/128

Abstract: Functionalized metal oxide nanoparticles which are lithium-terminated sulfonated metal oxide nanoparticles. According to the anode to which lithium-terminated sulfonated metal oxide nanoparticles are introduced as a protective layer, negatively charged sulfonate groups may cause electrostatic repulsion of lithium polysulfides and limit access of lithium polysulfides to a lithium metal anode while reducing the interfacial resistance by lithium fixed to sulfonate groups, inhibit growth of dendrites at a lithium metal anode and perforation of a separator, and the protective layer serves as an artificial solid electrolyte interphase (SEI) layer positioned on the surface of lithium metal and reducing the impedance to charge transfer reaction, thereby increasing the Coulomb efficiency of a lithium-sulfur battery. Thus, it is possible to improve the electrochemical characteristics, such as charge/discharge capacity, life and rate characteristics.

公开(公告)号：US20170008763A1

公开(公告)日：2017-01-12

申请号：US14957856

申请日：2015-12-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sarng Woo KARNG ,  In Hwan OH

IPC: C01B3/00 ,  B01D53/04 ,  B01D50/00 ,  C01B3/56 ,  B01D45/16

CPC classification number: C01B3/0089 ,  B01D45/16 ,  B01D53/002 ,  B01D53/04 ,  B01D53/24 ,  B01D53/38 ,  B01D53/46 ,  B01D53/86 ,  B01D2253/108 ,  B01D2255/20738 ,  B01D2255/20784 ,  B01D2256/16 ,  B01D2257/108 ,  C01B2203/042 ,  Y02E60/324

Abstract: Disclosed herein is an apparatus for precooling and purifying hydrogen including a body which includes a first chamber and a second chamber disposed in the first chamber with the second chamber being filled with a liquid cooling medium, a first cyclone chamber disposed in the second chamber and connected to a hydrogen supply pipe on an upper of one side thereof to allow the hydrogen which flows therein to move downward rotating to perform thermal exchange with the cooling medium and separation of impurities therefrom, a first hydrogen discharge pipe to allow hydrogen to flow from the first cyclone chamber to the outside, and an ortho-para hydrogen converting catalyst disposed on a path through which hydrogen which flows in the first hydrogen discharge pipe moves to allow ortho-para hydrogen conversion to be performed.

Abstract translation: 本文公开了一种用于预冷和净化氢的装置，其包括主体，其包括设置在第一室中的第一室和第二室，第二室填充有液体冷却介质，第一旋风室设置在第二室中并连接 到其一侧上方的氢气供给管，以允许在其中流动的氢气向下旋转以与冷却介质进行热交换并从其中分离杂质;第一氢气排放管，允许氢气从第一 旋转室到外部，以及邻位对氢转化催化剂，其设置在通过第一氢气排放管中流动的氢气移动以允许执行邻位氢转化的路径上。

公开(公告)号：US20170065966A1

公开(公告)日：2017-03-09

申请号：US15258143

申请日：2016-09-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： In Wook NAH ,  Sarng Woo KARNG ,  In Hwan OH ,  Kang Bong LEE ,  Jung Hyun KIM

IPC: B01J29/072 ,  C01B3/00 ,  B01J35/02 ,  B01J35/04 ,  B01J35/06

CPC classification number: B01J29/072 ,  B01J23/10 ,  B01J23/24 ,  B01J23/462 ,  B01J23/745 ,  B01J35/023 ,  B01J35/026 ,  B01J35/04 ,  B01J35/06 ,  B01J35/08 ,  B01J37/30 ,  B01J2229/186 ,  B01J2229/20 ,  C01B3/0089

Abstract: Disclosed are a modified catalyst for converting ortho-hydrogen to para-hydrogen, in which a metal active material capable of converting ortho-hydrogen to para-hydrogen is coated on a surface of a porous support, a method for preparing the same, and an apparatus and a method for converting ortho-hydrogen to para-hydrogen in hydrogen gas using the same. Accordingly, a pressure drop may be prevented and impurities in hydrogen gas may also be simultaneously removed when ortho-hydrogen is converted to para-hydrogen, and a stable reaction operation may be enabled.

Abstract translation: 公开了一种用于将正氢转化为对氢的改性催化剂，其中能够将邻 - 氢转化为对 - 氢的金属活性物质涂覆在多孔载体的表面上，其制备方法和 装置和使用其将氢气中的正氢转化为对氢的方法。 因此，当邻位氢转化为对位氢时，可以防止压降和氢气中的杂质同时被除去，并且可以实现稳定的反应操作。

公开(公告)号：US20160305610A1

公开(公告)日：2016-10-20

申请号：US15096461

申请日：2016-04-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sarng Woo KARNG ,  Seo Young KIM ,  Jong Hoon BAIK ,  In Hwan OH

IPC: F17C13/00 ,  F17C3/08

CPC classification number: F17C3/08 ,  F17C2201/032 ,  F17C2201/056 ,  F17C2203/014 ,  F17C2203/0391 ,  F17C2203/0629 ,  F17C2221/011 ,  F17C2221/012 ,  F17C2221/014 ,  F17C2221/017 ,  F17C2221/033 ,  F17C2221/035 ,  F17C2223/0153 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2260/033 ,  Y02E60/321

Abstract: Provided is a low heat loss cryogenic liquid container, which includes: an outer container, to an upper end of which an upper end cover is coupled and an interior of which is maintained in a vacuum; an inner container that is disposed inside the outer container apart from an inner wall of the outer container and contains a cryogenic liquid; a liquid inflow/outflow pipe that connects an exterior of the outer container and an interior of the inner container and serves as a passage for charging and/or discharging the cryogenic liquid; and a support including a strut member that is disposed between an inner lower surface of the outer container and an outer lower surface of the inner container and is formed of a low heat conductivity material to interrupt heat conduction, and springs disposed at least one position between an upper end of the strut member and the outer lower surface of the inner container, between a lower end of the strut member and the inner lower surface of the outer container, and between both of the ends of the strut member.

Abstract translation: 提供了一种低热损失低温液体容器，其包括：外部容器，其上端连接有上端盖并将其内部保持在真空中; 内部容器，其设置在所述外部容器的内部，与所述外部容器的内壁隔开，并且包含低温液体; 液体流入/流出管，其连接外部容器的外部和内部容器的内部，并且用作用于对低温液体进行充放电的通道; 以及支撑体，其包括设置在所述外容器的内下表面和所述内容器的外下表面之间的支柱构件，并且由导热性低的材料形成以中断热传导，弹簧设置在所述支柱构件之间的至少一个位置 支柱构件的上端和内容器的外下表面之间，在支柱构件的下端和外容器的内下表面之间以及支柱构件的两端之间。

公开(公告)号：US20230132735A1

公开(公告)日：2023-05-04

申请号：US18049085

申请日：2022-10-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： In Wook NAH ,  Jae Ik KIM ,  Soon Jong KWAK ,  In Hwan OH

IPC: C07D317/36 ,  B01J27/24

Abstract: Disclosed are a method and an apparatus for preparing an alkylene carbonate using a polyamine-based heterogeneous catalyst. The rapid increase in reactor temperature and the risk of explosion due to heat of reaction may be prevented by recycling the produced alkylene carbonate to the reactor. Accordingly, it is possible to obtain the alkylene carbonate stably and continuously with high yield while maintaining reaction temperature and pressure constant.

公开(公告)号：US20220233997A1

公开(公告)日：2022-07-28

申请号：US17175705

申请日：2021-02-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA LAND & HOUSING CORPORATION

Inventor： In Wook NAH ,  Jae Ik KIM ,  Soon Jong KWAK ,  In Hwan OH ,  Daeseung KYUNG ,  Youngjong SIM ,  Yeongmin KIM ,  Han-guen AHN ,  Sang-ick CHOI

IPC: B01D53/14

Abstract: Disclosed are a carbon dioxide absorbent composition in which an N-alkylaminoalkanol; a polyhydroxyamine-based compound; and ethylenediamine and/or diethylenetriamine are mixed, a method for preparing the same, and a method and an apparatus for carbon dioxide absorption/separation using the same. Since the carbon dioxide absorbent according to the present disclosure has superior carbon dioxide absorption capacity and remarkably lower absorbent recycling temperature as compared to the existing absorbents such as monoethanolamine, etc., total energy consumption in the capturing process can be reduced greatly. In addition, since carbon dioxide is recovered at low recycling temperature, contamination by water or absorbent vapor may be prevented.

公开(公告)号：US20190280304A1

公开(公告)日：2019-09-12

申请号：US16296158

申请日：2019-03-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： WON IL CHO ,  Mun Sek KIM ,  Seung Hun LEE ,  Min Seop KIM ,  Van Dung DO ,  In Wook NAH ,  In Hwan OH

IPC: H01M4/66 ,  H01M4/38 ,  H01M4/131 ,  H01M10/052 ,  C01B32/174

Abstract: The artificial solid electrolyte interphase of an anode for a secondary battery including multi-walled carbon nanotubes to protect an underlying anode material in the form of a thin film. The use of the artificial solid electrolyte interphase enables rapid diffusion and stable deposition of lithium to inhibit the formation of dendrites. In addition, the artificial solid electrolyte interphase prevents side reactions between the lithium metal anode and the electrolyte, achieving good electrochemical stability and high Coulombic efficiency.

公开(公告)号：US20130189605A1

公开(公告)日：2013-07-25

申请号：US13744527

申请日：2013-01-18

Applicant: Korea Institute of Science and Technology

Inventor： Shin Ae SONG ,  Sung Pil YOON ,  Seong Ahn HONG ,  Tae Hoon LIM ,  Jong Hee HAN ,  In Hwan OH ,  Suk Woo NAM ,  Hyoung Juhn KIM ,  Eun Ae CHO ,  Jong Hyun JANG ,  Dirk HENKENSMEIER ,  Thieu CAM-ANH

IPC: H01M8/12

CPC classification number: H01M8/126 ,  C04B35/50 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/3298 ,  C04B2235/44 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/656 ,  C04B2235/77 ,  H01M2300/0074 ,  Y02E60/525 ,  Y02P70/56

Abstract: Provided are a ceria-based composition including ceria or metal-doped ceria, lithium salt, and optionally, bismuth oxide, ceria-based composite electrolyte powder, and a sintering method and sintered body using the same. Particularly, the lithium salt is present in an amount more than 0 wt % and equal to or less than 5 wt %, and bismuth oxide is present in an amount more than 0 wt % and equal to or less than 10 wt %. It is possible to reduce sintering temperature by adding a low-melting point and/or volatile compound to a ceria-based material. In this manner, it is possible to ensure a high composite sintering density, for example, of 95% or more even at a temperature, for example, of 1000° C. or lower, which is significantly lower than the conventional sintering temperature of 1500° C. in the case of a ceria-based material alone.

Abstract translation: 提供了包括二氧化铈或金属掺杂的二氧化铈，锂盐和任选的氧化铋，二氧化铈类复合电解质粉末和使用其的烧结方法和烧结体的二氧化铈基组合物。 特别地，锂盐的存在量大于0重量％且等于或小于5重量％，并且氧化铋以大于0重量％且等于或小于10重量％的量存在。 可以通过向二氧化铈基材料中添加低熔点和/或挥发性化合物来降低烧结温度。 以这种方式，即使在例如1000℃以下的温度下也可以确保高的复合烧结密度，例如为95％以上，这明显低于常规烧结温度为1500 在仅有二氧化铈基材料的情况下。