| 摘要 |
In a sodium sulphur cell having beta-alumina solid electrolyte material (10) separating an anodic region (12) containing sodium from a cathodic region, the surface of the electrolyte (10) exposed to the sodium is pretreated with a first metal, conveniently lead, which will form an alloy with sodium and the anodic region contains a second metal, e.g. titanium or aluminium (18) which will react with sodium oxide to form a sodium oxide compound of the second metal or an oxide thereof. The combined effect of these features gives a significant improvement in preventing resistance rise of the cell on discharge. <IMAGE> |
