| 摘要 |
A sodium ion conducting glass characterised in that it has a resistivity of not more than 10<5> ohm-cm at 300 DEG C, is resistant to corrosive attack by liquid sodium and to devitrification and comprises, as calculated from the glass batch in cation percent, from 32 to 44% Na and the remainder essentially a mixture of Si, B and Al wherein the Si content is from 10 to 40% of the total Si+B+Al content, the Al content is from 5 to 60% of such total and the B content is from 15 to 70% thereof is disclosed. …<??>A sodium-sulphur battery having a liquid sodium anode, a liquid sulphur-sodium sulphide mixture as a cathode and a thin glass membrane separating the anode and cathode liquids, characterised in that the membrane is formed from such a glass is also disclosed, as is such a glass in the form of a membrane for such a battery. …<??>The present invention affords numerous advantages over the prior art. |
