| 摘要 |
1,143,116. Electrolytes for fuel cells. BATTELLE-INSTITUT e.V. 6 Oct., 1966 [8 Oct., 1965], No. 44719/66. Heading H1B. A solid electrolyte skeleton for high temperature fuel cells comprises a plurality of layers of solid electrolyte spaced from one another and interconnected by spacing elements located between the layers, the elements being of the same material and integrally formed with the material of the layers. In the embodiment of Fig. 1 there are five layers 7 separated by spacing elements 10 and two gas permeable metal electrode layers 8 and 9, which together cover substantially the whole internal and external surface area of the electrolyte skeleton, and the skeleton is sandwiched between two metal plates 11. The electrolyte material may be sintered zirconium oxide, and may contain some yttrium oxide. Fuel gas, e.g. hydrogen, is introduced at an inlet 1 and oxidant, e.g. air or oxygen, at an inlet 2. The two gases flow outwardly from the centre of the cell in adjacent spaces between the electrolyte layers as shown by the arrows. Electrochemical oxidation takes place and combustion products are discharged from the periphery, e.g. at 3 and 4. Unspent gases are discharged at 5 and 6. Other arrangements are described and several skeletons may be placed one upon another electrically in series. |
