| 摘要 |
Water recovery in direct liquid fuel cells (10) is accomplished by incorporating a capillarity structure (20) adjacent to the cathode (18). The capillarity material has a free rise wick height of at least one half its longest dimension. The capillarity materials may be foams, matted fibers, bundled fibers, woven fibers and nonwoven fibers. In one embodiment, holes or perforations (202) are formed through the thickness of the sheet, and a conductive layer is added to one surface of the capillarity material. To recycle water, a second capillarity is incorporated next to the anode (16), and a liquid flow path is provided between the first and second capillarity structures. The absorbed water flows through the liquid flow path, is mixed with fuel and introduced to the second capillarity structure adjacent to the anode. |
