| 摘要 |
1,190,601. Fuel cell systems. GENERAL ELECTRIC CO. 8 May, 1967 [9 May, 1966], No. 21252/67. Heading H1B. An unvented fuel cell power supply system comprises two separate fuel cells, the exhaust stream of at least one electrode of the first cell being fed to the appropriate electrode of the second where it is consumed, the second cell having means to retain any impurities flushed from the first cell by the exhaust stream of unconsumed gas. As shown, a fuel battery comprising a number of cells 108, 110, 112, 114 and 116 has one set of gas chambers connected in series by conduits 130. The exhaust stream from the last of these chambers passes through a length of smaller diameter tubing 104 to prevent back-diffusion to fuel cell 10 where the remainder of the reactant is consumed at an electrode and the impurity is retained in a mass of active carbon (Fig. 1, not shown). The system is preferably employed using as the reactant fed to the second cell hydrogen which may contain hydrocarbon impurities. |
