| 摘要 |
In a sodium sulphur cell, a high charge acceptance at high current densities is obtained by forming blind holes 20 (Figure 1) in the cathode matrix 18 (typically of carbon felt), the holes extending from the surface of matrix adjacent the cathode current collector 14 through the matrix towards the electrolyte 11 and being filled with a material such as finely powdered activated carbon having a substantially higher surface area per unit mass than the matrix material. <IMAGE> |
