| 摘要 |
The invention provides a rechargeable high temperature electrochemical power storage cell (10) having a molten alkali metal anode (12) separated from a cathode (16) by a separator (24). The separator divides the cell into an anode compartment (38, 40) which contains said alkali metal and a cathode compartment which contains a cathode. The separator permits the anode alkali metal to pass therethrough during discharge of the cell from the anode compartment to the cathode compartment into which it is released in ionic form for reaction with the cathode. The cell has an operative attitude in which it is upright, in which operative attitude the separator extends at an angle to the horizontal so that the level of the surface of anode metal in the anode compartment to which the separator is exposed drops during discharge of the cell and rises during charging of the cell. The anode compartment has a lower portion (38) and an upper portion (40) which has a greater horizontal cross-section (A) than the horizontal cross-section (B) of the lower portion, and the lower portion is entirely filled with anode metal in the fully discharged state of the cell. …<IMAGE>… |
