| 摘要 |
983,547. Batteries; fuel cells. YARDNEY INTERNATIONAL CORPORATION. Oct. 13, 1961 [Oct. 14, 1960; May 12, 1961; July 21, 1961], No. 36852/61. Heading H1B. An electrochemical system is catalysed with one or more of the following radio-active isotopes-C14, Ni63, H3, Si32, Co60, Po210, Pr147, St90, Te99. The isotope may be impregnated into the electrodes e.g. into carbon nickel or silver and details of the impregnating are given, including use of a solution of a halide, reductions in KOH and subsequent electrolytic reductions, and the use of suspensions of carbon in toluene. C-Zn, Ni-NiO, and Ag-Zn systems all in KOH are disclosed. The invention can also be applied to fuel cells including a sodium amalgam cell and ones using solid or fused electrolytes. Known anti-oxidants may be incorporated in the electrodes and so may further known catalysts. Several cell constructions are disclosed, in particular a three fluid cell (Fig. 10) with permeable membranes 42 of alundum and fuel/electrolyte mixture in 81 continuously circulated by a pump through a filter. The oxygen electrode has an electrode plate 54 supported by a lucite block. A two fluid version of this cell is also disclosed. An amalgam cell (Fig. 14) has a carbon or silver oxygen electrode 209 and a sodium amalgam 205 acting as the fuel electrode. Also disclosed is a fuel cell in which the carbon electrode is consumed. A cell having a gas electrode and a rechargeable electrode (e.g. of cadmium) and including an auxiliary electrode for charging purposes is also disclosed. |
