| 摘要 |
The container (10), formed of sintered solid electrolyte material, is formed by binding together 2 sheets (14,16) of the material at the edges (32,34). The sheets have parallel wavy profiles (22) in the length direction leaving a space (24) between them for the electrode material. The profiles of the 2 sheets may be in phase or out of phase but have the same periodicity, or may have a step-wise change (28) in wavelength. An opening (12) is provided for external contact and filling. Separators, pref porous, may be used to hold the 2 sheets away from each other. The material used is pref alumina, with the profiled sheets beta-alumina. Prodn of the container comprises a mixt of the electrolyte material, or material from which it can be formed during processing, is formed with a binder which is both thermoplastic and thermosetting. Then the profiled sheets are formed and connected together forming seams round the perimeter, leaving a space between them. The binder is then made to set, then removed by firing and the material is sintered. The profile is pref applied by using profiled rollers. The seams are closed with a roller at elevated temp when the binder is still thermoplastic. The filler opening is also pref made of alumina. The container is pref configured as anode and filled with Na which is molten at the operating temp of the electrochemical cell. - |
