IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0831894
(2007-07-31)
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등록번호 |
US-8283090
(2012-10-09)
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발명자
/ 주소 |
- Markoski, Larry J.
- Moore, Jeffrey S.
- Lyding, Joseph W.
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출원인 / 주소 |
- The Board of Trustees of the University of Illinois
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
23 |
초록
▼
An electrochemical cell is described that includes (a) a first electrode; (b) a second electrode; and (c) a channel contiguous with at least a portion of the first and the second electrodes. When a first liquid is contacted with the first electrode, a second liquid is contacted with the second elect
An electrochemical cell is described that includes (a) a first electrode; (b) a second electrode; and (c) a channel contiguous with at least a portion of the first and the second electrodes. When a first liquid is contacted with the first electrode, a second liquid is contacted with the second electrode, and the first and the second liquids flow through the channel, a parallel laminar flow is established between the first and the second liquids. Electronic devices containing such electrochemical cells and methods for their use are also described.
대표청구항
▼
1. A fuel cell, comprising: an anode comprising an anode catalyst,a cathode comprising a cathode catalyst,a channel that is contiguous with at least a portion of the anode, anda first liquid comprising a fuel;where the first liquid flows in the channel in laminar flow, and the flowing first liquid i
1. A fuel cell, comprising: an anode comprising an anode catalyst,a cathode comprising a cathode catalyst,a channel that is contiguous with at least a portion of the anode, anda first liquid comprising a fuel;where the first liquid flows in the channel in laminar flow, and the flowing first liquid is in direct contact with the anode catalyst,complementary half cell reactions take place at the anode and the cathode, respectively,a current density of at least 0.1 mA/cm2 is produced, andions travel from the anode to the cathode without traversing a membrane. 2. The fuel cell of claim 1, where the fuel comprises methanol. 3. The fuel cell of claim 1, where the concentration of the fuel in the first liquid is controlled by a fuel sensor coupled to a device selected from the group consisting of a fuel injector, a flow rate monitor, a fuel recycler, a gas exchanger, and combinations thereof. 4. The fuel cell of claim 1, where the channel has a substantially straight flow channel geometry. 5. The fuel cell of claim 1, where the fuel cell comprises a direct methanol fuel cell. 6. The fuel cell of claim 1, where a proton gradient is established in the channel, between the anode and the cathode. 7. The fuel cell of claim 1, where a current density of at least 1 mA/cm2 is produced. 8. The fuel cell of claim 1, where a current density of at least 2 mA/cm2 is produced. 9. The fuel cell of claim 1, further comprising a second liquid in contact with the cathode. 10. The fuel cell of claim 9, where the second liquid comprises water. 11. The fuel cell of claim 9, where the second liquid comprises an oxidant. 12. The fuel cell of claim 11, where the oxidant comprises oxygen. 13. A fuel cell, comprising: an anode comprising an anode catalyst,a cathode comprising a cathode catalyst,a channel that is contiguous with at least a portion of the anode, anda first liquid comprising a fuel;a second liquid in contact with the cathode;where the first liquid flows in the channel in laminar flow, and the flowing first liquid is in direct contact with the anode catalyst,complementary half cell reactions take place at the anode and the cathode, respectively,a current density of at least 0.1 mA/cm2 is produced, andions travel from the anode to the cathode without traversing a membrane, wherein the second liquid flows in the channel in laminar flow. 14. A portable electronic device, comprising the fuel cell of claim 1.
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