[특허]System and method for purging condensate from an electrochemical cell stack prior to operation

Honda Motor Co., Ltd.

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

System and method for purging condensate from an electrochemical cell stack prior to operation

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-008/04
미국특허분류(USC)	429/442;
출원번호	US-0270395 (2008-11-13)
등록번호	US-8153319 (2012-04-10)
발명자 / 주소	Chuah, Christopher J. Schrieber, Jeffrey W. Doherty, Thomas V. Takeuchi, Jun Otaka, Akifumi
출원인 / 주소	Honda Motor Co., Ltd.
대리인 / 주소	Nelson Mullins Riley & Scarborough LLP
인용정보	피인용 횟수 : 0 인용 특허 : 1

초록
▼

A system and technique for purging condensate from an electrochemical cell stack prior to operating the stack in one of a power producing mode of operation and an electrochemical pumping mode of operation is provided. The system and technique include storing hydrogen in the anode and cathode chambers of the stack to place the stack in a shutdown state, purging the anode and cathode chambers of condensate prior to starting operation of the stack, and preventing a fuel starvation condition in the stack while purging by sequencing communication of a fuel fl...

대표
청구항
▼

1. A method to start an electrochemical cell stack having an anode chamber and a cathode chamber, comprising: purging condensate from the stack with a gas flow before operating the stack in one of a power producing mode and a electrochemical pumping mode; andoperating the stack in the one of the powering producing mode and the electrochemical pumping mode after the purging of the condensate,wherein operating the stack in the power producing mode comprises: providing a fuel flow to the anode chamber, andproviding an oxidant flow to the cathode chamber;wherein operating the stack in the electrochemical pumping mode comprises: providing power to the stack from a power source coupled to the stack through a polarity switching subsystem, andproviding the fuel flow to the anode chamber;wherein the polarity switching subsystem switches between the electrochemical pumping mode and the power producing mode. 2. The method as recited in claim 1, wherein purging the condensate comprises purging the anode chamber of the stack with the gas flow. 3. The method as recited in claim 2, wherein purging the condensate comprises purging the cathode chamber of the stack with the gas flow after purging the anode chamber. 4. The method as recited in claim 1, comprising providing the oxidant flow from an oxidant source coupled to the stack. 5. The method as recited in claim 4, wherein operating the stack in the power producing mode further comprises: isolating the anode chamber from the oxidant source;coupling the oxidant source to the cathode chamber to provide the oxidant flow to the stack; andcoupling a fuel source to the anode chamber to provide the fuel flow to the stack. 6. The method as recited in claim 4, wherein operating the stack in the electrochemical pumping mode further comprises: isolating the oxidant source from the anode chamber and the cathode chamber; andcoupling a fuel source to the anode chamber to provide the fuel flow to the stack. 7. The method as recited in claim 1, comprising: placing the stack in a shutdown state prior to the purging, wherein the act of placing comprises: storing hydrogen in the cathode chamber and the anode chamber. 8. An electrochemical cell system, comprising: an electrochemical cell stack including an anode chamber and a cathode chamber; anda control subsystem configured to: start the stack from a shutdown state by controlling an air flow to purge the stack of condensate formed while in the shutdown state; andselectively operating the stack in one of a power producing mode and an electrochemical pumping mode after purging the condensate,wherein operating the stack in the power producing mode comprises: providing a fuel flow to the anode chamber, andproviding an oxidant flow to the cathode chamber;wherein operating the stack in the electrochemical pumping mode comprises: providing power to the stack from a power source coupled to the stack through a polarity switching subsystem, andproviding the fuel flow to the anode chamber;wherein the polarity switching subsystem switches between the electrochemical pumping mode and the power producing mode. 9. The system as recited in claim 8, wherein the control subsystem is configured to purge the condensate in the anode chamber of the stack with the air flow. 10. The system as recited in claim 9, wherein the control subsystem is configured to purge the condensate in the cathode chamber of the stack with the air flow after purging the anode chamber with the air flow. 11. The system as recited in claim 8, further comprising an oxidant source selectively coupled to the stack to provide the air flow to purge the condensate. 12. The system as recited in claim 8, wherein the control subsystem is configured to place the stack in the shutdown state by storing hydrogen in the cathode chamber and the anode chamber and isolating the stack from the fuel flow and the oxidant flow. 13. The system as recited in claim 8, wherein the control subsystem is configured to prevent carbon corrosion in the stack during purging by communicating the oxidant flow and the fuel flow to the anode chamber and an oxidant flow to the cathode chamber in a predefined sequence. 14. The system as recited in claim 13, wherein the predefined sequence comprises: storing hydrogen in the cathode chamber and the anode chamber;purging the anode chamber of condensate with the oxidant flow;communicating the fuel flow to the anode chamber after purging the anode chamber; andpurging the cathode chamber of condensate with the oxidant flow after communicating the fuel flow to the anode chamber. 15. A method to start up an electrochemical cell system having an electrochemical cell stack, comprising: storing hydrogen in an anode chamber and a cathode chamber of the stack;purging the anode chamber and the cathode chamber of condensate prior to starting operation of the stack in one of a power producing mode and an electrochemical pumping mode; andpreventing a carbon corrosion condition in the stack while purging the anode chamber and the cathode chamber of condensate, the act of preventing comprising: sequencing communication of a gas flow to the anode chamber with a gas flow to the cathode chamber to purge the condensate from the anode chamber and the cathode chamber,wherein operating the stack in the power producing mode comprises: providing a fuel flow to the anode chamber, andproviding an oxidant flow to the cathode chamber;wherein operating the stack in the electrochemical pumping mode comprises: providing power to the stack from a power source coupled to the stack through a polarity switching subsystem, andproviding the fuel flow to the anode chamber;wherein the polarity switching subsystem switches between the electrochemical pumping mode and the power producing mode. 16. The method as recited in claim 15, wherein the act of sequencing comprises: purging the condensate from the anode chamber with a gas flow prior to purging the condensate from the cathode chamber with a gas flow. 17. The method as recited in claim 16, wherein the act of sequencing further comprises communicating the fuel flow to the anode chamber after purging the anode chamber and prior to purging the cathode chamber. 18. The method as recited in claim 15, wherein the act of sequencing comprises communicating a gas flow to the anode chamber substantially simultaneously with communicating a gas flow to the cathode chamber. 19. The method as recited in claim 18, further comprising controlling each gas flow such that progression of a first front through the anode chamber relative to progression of a second front through the cathode chamber substantially prevents the carbon corrosion condition. 20. The method as recited in claim 19, wherein the act of controlling comprises controlling each gas flow such that the progression of the first front is substantially aligned with the progression of the second front one either side of a membrane between the anode chamber and the cathode chamber.

이 특허에 인용된 특허 (1)

Wilkinson, David P.; Knights, Shanna D.; Lauritzen, Michael V.. Sensor cell for an electrochemical fuel cell stack. USP2004016673480.

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

System and method for purging condensate from an electrochemical cell stack prior to operation

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (1)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

System and method for purging condensate from an electrochemical cell stack prior to operation

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (1)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼