Patent search ap:("KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY") AND inv:"Heung Yong Ha" Page 1

1.

发明授权
Preparation method of calcium carbonate with high purity from inorganic materials containing alkali metals or alkali earth metals 有权

公开(公告)号：US10322941B2

公开(公告)日：2019-06-18

申请号：US15435801

申请日：2017-02-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kwang Deog Jung , Heung Yong Ha , Jun Woo Oh , Ho Yong Jo

IPC: C01F11/18 , C21B15/00 , C22B7/00 , C22B7/04

Abstract: The present invention relates to a method and a process of preparing precipitated calcium carbonate of high purity by extracting calcium ion contained in an alkali ion-containing inorganic material such as mineral, steelmaking slag and waste concrete with the use of an acidic aqueous solution, separating other metal ions from the extracted solution, preparing an alkaline earth metal hydroxide using an alkaline aqueous solution and then contacting the same with carbon dioxide.

2.

发明授权
Method and apparatus for controlling fuel concentration of liquid fuel cell by sensor-less and voltage amplitude-control based feed-back control, and liquid fuel cell apparatus using the same 有权

公开(公告)号：US09911996B2

公开(公告)日：2018-03-06

申请号：US14939970

申请日：2015-11-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heung Yong Ha , Myunggi An , Jinyeon Hwang , Asad Mehmood

IPC: H01M8/04791 , H01M8/04186 , H01M8/04537 , H01M8/0438 , H01M8/04992 , H01M8/1009 , H01M8/0432 , H01M8/04701 , H01M8/1011 , H01M8/04007 , H01M8/04119

CPC classification number: H01M8/04798 , H01M8/04067 , H01M8/04164 , H01M8/04186 , H01M8/04365 , H01M8/0438 , H01M8/04552 , H01M8/04582 , H01M8/04731 , H01M8/04992 , H01M8/1009 , H01M8/1011 , Y02E60/523

Abstract: Disclosed is an apparatus for controlling a fuel concentration of a liquid fuel cell apparatus by voltage amplitude control-based feed-back control without using a concentration sensor, which saves power consumed by the fuel cell apparatus and lowers a price of the fuel cell apparatus by using the fuel cell in a simple and small design without using a concentration sensor.

3.

发明申请
HIGHLY ION-SELECTIVE COMPOSITE POLYMER ELECTROLYTE MEMBRANES COMPRISING METAL-ION BLOCKING LAYER, REDOX FLOW BATTERIES COMPRISING THE SAME, AND ELECTROCHEMICAL DEVICES COMPRISING THE SAME 审中-公开

公开(公告)号：US20200168937A1

公开(公告)日：2020-05-28

申请号：US16691610

申请日：2019-11-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ji Hun Ahn , Heung Yong Ha , Sheeraz Mehboob

IPC: H01M8/1053 , H01M8/1027 , H01M8/1032 , H01M8/1039 , H01M8/1062 , H01M8/18

Abstract: Disclosed is a composite polymer electrolyte membrane comprising: a support membrane; a metal ion-blocking layer stacked on the support membrane; a stabilization layer; and a protecting layer, wherein the support membrane includes a cation conductive polymer.

4.

发明授权
Method and apparatus for simultaneous controlling of fuel concentration and temperature of liquid fuel by sensor-less and temperature-control based feed-back control, liquid fuel cell apparatus using the same 有权

公开(公告)号：US10079395B2

公开(公告)日：2018-09-18

申请号：US14093614

申请日：2013-12-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heung Yong Ha , Myunggi An , Woon Jo Kim

IPC: H01M8/04 , H01M8/04186 , H01M8/1009 , H01M8/0432 , H01M8/04746 , H01M8/04791

CPC classification number: H01M8/04186 , H01M8/0432 , H01M8/04753 , H01M8/04798 , H01M8/1009

Abstract: A concentration of a fuel supplied to a fuel cell and a heat exchange rate of a heat exchanger are controlled simultaneously in order to maintain a temperature of fuel cell stack and a diluted fuel concentration that is supplied to the fuel cell stack in a target level. Further, by appropriately responding to an exterior temperature changes or unexpected fuel cell performance changes, it is possible to improve a system efficiency and stability of fuel cell operation and to regulate the fuel concentration quickly and accurately compared to a prior sensor-less concentration controller.

5.

发明授权
Highly ion-selective composite polymer electrolyte membranes comprising metal-ion blocking layer, redox flow batteries comprising the same, and electrochemical devices comprising the same 有权

公开(公告)号：US11335931B2

公开(公告)日：2022-05-17

申请号：US16691610

申请日：2019-11-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ji Hun Ahn , Heung Yong Ha , Sheeraz Mehboob

IPC: H01M8/1053 , H01M8/1027 , H01M8/1032 , H01M8/1062 , H01M8/18 , H01M8/1039 , H01M8/10

Abstract: Disclosed is a composite polymer electrolyte membrane comprising: a support membrane; a metal ion-blocking layer stacked on the support membrane; a stabilization layer; and a protecting layer, wherein the support membrane includes a cation conductive polymer.

6.

发明授权
Porous carbon materials and methods of manufacturing the same 有权

公开(公告)号：US10454115B2

公开(公告)日：2019-10-22

申请号：US15335775

申请日：2016-10-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heung Yong Ha , Hyuck Lee , Jinyeon Hwang

IPC: H01M4/96 , H01M10/20 , C01B32/00 , C01B32/16 , C01B32/18 , B01J37/08 , B01J23/745 , B01J23/75 , B01J23/755 , B01J37/02 , H01M8/18 , B01J35/06

Abstract: Provided is a porous carbon material having carbon nano-rods on the surface thereof. The porous carbon material has an increased specific surface area and an increased electrochemically active area, and thus may be expected to provide improved performance, when used as an electrode for electrochemical reactions. In addition, the carbon nano-rods of the porous carbon material are formed through an etching process using a catalyst for etching formed on the carbon material, and thus the carbon material may have various functions.

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