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.

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.

公开(公告)号：US20140154599A1

公开(公告)日：2014-06-05

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

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.

Abstract translation: 同时控制供给到燃料电池的燃料的浓度和热交换器的热交换率，以便将燃料电池堆的温度和供应到燃料电池堆的稀释的燃料浓度保持在目标水平。 此外，通过适当地响应于外部温度变化或意外的燃料电池性能的变化，可以提高燃料电池操作的系统效率和稳定性，并且与现有的无传感器浓度控制器相比快速且准确地调节燃料浓度。