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.

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.