[특허]Simplified direct oxidation fuel cell system

MTI MicroFuel Cells Inc.

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

Simplified direct oxidation fuel cell system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-002/00 B01D-027/00
미국특허분류(USC)	439/034; 429/038; 429/030; 210/435
출원번호	US-0078601 (2002-02-19)
발명자 / 주소	Ren,Xiaoming Becerra,Juan J. Beckmann,Gerhard Brown,Eric J. DeFilippis,Michael S. Neutzler,Jay K. Gottesfeld,Shimshon
출원인 / 주소	MTI MicroFuel Cells Inc.
대리인 / 주소	Cesari and McKenna LLP
인용정보	피인용 횟수 : 18 인용 특허 : 45

초록
▼

A simplified direct oxidation fuel cell system is provided. The fuel cell is constructed in such a manner that fuel is added to the cell anode as it is consumed and water is evaporated off at cell cathode so that there is no need for recirculation of unreacted fuel at the cell anode or water at the cell cathode. In addition, carbon dioxide generated from the anodic reaction is passively vented out of the system by using a CO2 gas permeable membrane material integrated as part of the anode chamber construction. Other embodiments of the invention include ...

대표
청구항
▼

What is claimed is: 1. A direct oxidation fuel cell, comprising (A) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect; (B) a fuel cell housing enclosing said fuel cell with an anode chamber being defined between said anode aspect of the catalyzed membrane electrolyte and an exterior portion of said cell housing, said fuel cell housing also including a cathode chamber being defined between said catalyzed membrane electrolyte and an exterior portion of said fuel cell housing, opposite said anode chamber; (C) a direct fuel feed into said anode chamber that has no liquid exit port such that liquid that is present in said anode chamber cannot exit said anode chamber except across said catalyzed membrane electrolyte; (D) at least one gaseous effluent release port in said anode chamber, which is in substantially direct gaseous communication with the ambient environment, to vent gaseous product of an electricity-generating reaction from said anode chamber to the ambient environment, and not into said cathode chamber, as said gaseous product is generated; and (E) a load coupled across said fuel cell, providing a path for electrons produced in electricity generating reactions of said fuel cell. 2. The direct oxidation fuel cell as defined in claim 1 wherein a substance delivered by said direct fuel feed into a liquid-closed volume in the anode chamber is up to 100% fuel. 3. The direct oxidation fuel cell as defined in claim 2 wherein said fuel is methanol. 4. The direct oxidation fuel cell as defined in claim 1 wherein fuel is delivered by said direct fuel feed into said anode chamber without anode liquid recirculation. 5. The direct oxidation fuel cell as defined in claim 1 wherein water produced at said cathode is not actively collected or pumped to said anode chamber. 6. The direct oxidation fuel cell as defined in claim 1 wherein gaseous product traveling out of said fuel cell through said gaseous effluent release port is at least partially comprised of carbon dioxide. 7. The direct oxidation fuel cell as defined in claim 1 wherein at least a portion of one wall of said anode chamber is gas permeable and liquid impermeable. 8. A direct oxidation fuel cell, comprising: (A) a catalyzed membrane electrolyte having an anode aspect and a cathode aspect; (B) a fuel cell housing with an anode chamber being defined between said anode aspect of said catalyzed membrane electrolyte and an exterior portion of said cell housing, and fuel being delivered to, but not actively recirculated from, said anode chamber, said fuel cell housing also including a cathode chamber being defined between said catalyzed membrane electrolyte and an exterior portion of said fuel cell housing, opposite said anode chamber; and (C) a gaseous anodic product removal component disposed between said catalyzed membrane electrolyte and at least a portion of the interior wall of the anode chamber for effective release by venting anodically generated gaseous product of an electricity-generating reaction substantially directly to the ambient environment, and not into the cathode chamber. 9. A direct oxidation fuel cell system, comprising: (A) a direct oxidation fuel cell having: (i) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect; (ii) a fuel cell housing enclosing said fuel cell with an anode chamber being defined between said anode aspect of the catalyzed membrane electrolyte and an exterior portion of said cell housing, said fuel cell housing also including a cathode chamber being defined between said catalyzed membrane electrolyte and an exterior portion of said fuel cell housing, opposite said anode chamber; (iii) a direct fuel feed into an anode chamber, having no liquid exit, such that fuel that enters into the anode chamber by the direct fuel feed cannot exit the anode chamber except across said catalyzed membrane electrolyte; and (iv) at least one gaseous effluent release port located in said anode chamber in close proximity to said anode aspect of the catalyzed membrane electrolyte, which is in substantially direct gaseous communication with the ambient environment and through which anodically generated gaseous product of an electricity reaction is vented and released from said anode chamber as it is generated, and not into the cathode chamber; (B) a fuel source coupled to said anode chamber; and (C) means by which current can be collected from the fuel cell and conducted to a load, whereby electricity is generated by said fuel cell as fuel is delivered to said anode chamber without external pumping of cathodically-generated water and without active water removal elements. 10. A direct oxidation fuel cell, comprising: (A) a catalyzed membrane electrolyte assembly having an anode aspect and a cathode aspect and (B) means for outporting gaseous product of an electricity generating reaction away from the anode aspect of the fuel cell substantially directly to the ambient environment through an anode chamber and not into a cathode chamber which means for outporting gasses is disposed in close proximity to said anode aspect of the catalyzed membrane electrolyte assembly. 11. A direct oxidation fuel cell comprising: (A) a membrane electrode assembly, including: (i) a protonically-conductive, electronically non-conductive catalyzed membrane electrolyte; (ii) a catalyst disposed on said membrane electrolyte; (iii) an anode diffusion layer disposed contiguous to an anode aspect of the membrane electrolyte; (iv) a cathode diffusion layer disposed contiguous to a cathode aspect of the membrane electrolyte; and (B) a gas-permeable, liquid-impermeable layer for releasing anodically generated gaseous product of an electricity-generating reaction as it is generated and is vented to the ambient environment and not into said cathode chamber, coupled in proximity to said anode diffusion layer; and (C) a coupling across said fuel cell to conduct electricity generated by said fuel cell to an associated load; and (D) a fuel cell housing substantially enclosing said fuel cell. 12. A direct oxidation fuel cell system, comprising: (A) a fuel source; (B) a direct oxidation fuel cell including: (i) a protonically-conductive, electronically non-conductive catalyzed membrane electrolyte; (ii) a catalyst disposed on said membrane electrolyte; (iii) an anode diffusion layer disposed contiguous to the anode aspect of the membrane electrolyte; (iv) a cathode diffusion layer disposed contiguous to the cathode aspect of the membrane electrolyte; and (v) a gas-permeable, liquid-impermeable layer coupled in proximity to said anode diffusion layer, for releasing anodically generated gaseous product of an electricity-generating reaction to an ambient environment and not into said cathode chamber; and (vi) a coupling across said fuel cell to conduct electricity generated by said fuel cell to an associated load. 13. The direct oxidation fuel cell system as defined in claim 12 wherein the fuel is up to 100% fuel. 14. The direct oxidation fuel cell system as defined in claim 13 wherein said fuel is methanol. 15. A direct oxidation fuel cell system, comprising: (A) a fuel source; (B) a direct oxidation fuel cell having a catalyzed membrane electrolyte with an anode aspect and a cathode aspect; (C) a cell housing with an anode chamber defined between the anode aspect of the catalyzed membrane and one exterior portion of said cell housing, with said chamber having no exit port for liquid; and (D) an element disposed between said fuel source and said anode aspect of the direct oxidation fuel cell for controlling the delivery of fuel to the anode aspect of the membrane electrolyte. 16. The direct oxidation fuel cell system as defined in claim 15, wherein said element controls the delivery of fuel without pumps or active recirculation mechanisms. 17. The direct oxidation fuel cell system as defined in claim 15 wherein said fuel source is disposed external to the fuel cell. 18. The direct oxidation fuel cell system as defined in claim 15 wherein a pressure differential exists between the fuel in the fuel source and the anode chamber of the fuel cell. 19. The direct oxidation fuel cell system as defined in claim 15 wherein said fuel source contains more than one liquid that may be mixed between the fuel source and the anode of the fuel cell. 20. The direct oxidation fuel cell system as defined in claim 19 wherein said fuel source contains methanol and water. 21. The direct oxidation fuel cell system as defined in claim 15 wherein said fuel source is capable of delivering up to 100% fuel to said fuel cell. 22. The direct oxidation fuel cell system as defined in claim 21 wherein said fuel is methanol. 23. The direct oxidation fuel cell system as defined in claim 15 wherein delivery of said fuel is performed by suction. 24. The direct oxidation fuel cell system as defined in claim 15 wherein said delivery by suction is performed by the action of a capillary network in a porous component, which is disposed between said fuel source and said anode of said direct oxidation fuel cell. 25. A direct oxidation fuel cell, comprising: (A) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect wherein said anode aspect has no liquid exit, and anodically generated gaseous product of an electricity-generating reaction is vented to the ambient environment as it is generated through an element coupled in close proximity to said anode aspect, and said anodically generated gaseous product is not vented across said membrane electrolyte into a cathode chamber; (B) a fuel source for providing fuel to said anode aspect, wherein said fuel comprises concentrated methanol; and (C) a load coupled across said fuel cell, providing a path for electrons produced in electricity-generating reactions of said fuel cell. 26. A direct oxidation fuel cell, comprising: (A) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect, and wherein said anode aspect has no liquid exit, and anodically generated gaseous product of an electricity-generating reaction is vented to the ambient environment as it is generated through an element coupled in close proximity to said anode aspect, and said anodically generated gaseous product is not vented across said membrane electrolyte into a cathode chamber; (B) a fuel source for providing fuel to said anode aspect, wherein said fuel consists essentially of concentrated methanol; and (C) a load coupled across said fuel cell, providing a path for electrons produced in electricity-generating reactions of said fuel cell. 27. A direct oxidation fuel cell system, comprising: (A) a direct oxidation fuel cell having: (i) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect, and wherein said anode aspect has no liquid exit, and anodically generated gaseous product of an electricity-generating reaction is vented to the ambient environment as it is generated through an element coupled in close proximity to said anode aspect, and said anodically generated gaseous product is not vented across said membrane electrolyte into a cathode chamber; (ii) a source of fuel, said fuel comprising concentrated methanol for providing fuel to said anode aspect; (B) a fuel cell housing enclosing said fuel cell; and (C) a load coupled across said fuel cell by which current can be collected from the fuel cell. 28. A direct oxidation fuel cell system, comprising: (A) a direct oxidation fuel cell having: (i) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect, and wherein said anode aspect has no liquid exit, and anodically-generated gaseous product of an electricity-generating reaction is vented to the ambient environment as it is generated through an element coupled in close proximity to said anode aspect, and said anodically generated gaseous product is not vented across said membrane electrolyte into a cathode chamber; (ii) a source of fuel, said fuel consisting essentially of concentrated methanol for providing fuel to said anode aspect; (B) a fuel cell housing enclosing said fuel cell; and (C) a load coupled across said fuel cell by which current can be collected from the fuel cell. 29. A direct oxidation fuel cell, comprising: (A) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect, and wherein said anode aspect has no liquid exit, and anodically-generated gaseous product of an electricity-generating reaction is vented to the ambient environment as it is generated through an element coupled in close proximity to said anode aspect, and said anodically generated gaseous product is not vented across said membrane electrolyte into a cathode chamber; (B) a source of fuel having a methanol concentration greater than the 1:1 ratio of methanol:water required by the electrochemical reaction at the anode aspect for providing fuel to said anode aspect; and (C) a load coupled across said fuel cell, providing a path for electrons produced in electricity-generating reactions of said fuel cell. 30. A direct oxidation fuel cell system, comprising: (A) a direct oxidation fuel cell having: (i) a catalyzed membrane electrolyte, having an anode aspect and a cathode aspect, and wherein said anode aspect has no liquid exit, and anodically-generated gaseous product of an electricity-generating reaction is vented to the ambient environment as it is generated through an element coupled in close proximity to said anode aspect, and said anodically generated gaseous product is not vented across said membrane electrolyte into a cathode chamber; and (ii) a source of fuel having a methanol concentration greater than the 1:1 ratio of methanol:water required by the electrochemical reaction at said anode aspect for providing fuel to said anode aspect; (B) a fuel cell housing enclosing said fuel cell; and (C) a load coupled across said fuel cell by which current can be collected from the fuel cell.

이 특허에 인용된 특허 (45)

이 특허를 인용한 특허 피인용횟수: 18

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

Simplified direct oxidation fuel cell system

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (45)

이 특허를 인용한 특허 피인용횟수: 18

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

Simplified direct oxidation fuel cell system

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (45)

이 특허를 인용한 특허 피인용횟수: 18

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼