| 摘要 |
PCT No. PCT/GB91/01595 Sec. 371 Date Apr. 22, 1993 Sec. 102(e) Date Apr. 22, 1993 PCT Filed Sep. 18, 1991 PCT Pub. No. WO92/05598 PCT Pub. Date Apr. 2, 1992.An aluminum cell comprises an electrolysis region with a top reservoir and a sump below. Circulation of electrolyte is by convection. The cell is designed to continue operation past the point at which the electrolyte becomes saturated, and an aluminum hydroxide precipitate settles out by gravity in a stagnant lower region of the sump. The anode is preferably of an aluminum alloy containing magnesium, with tin present in the alloy or in the electrolyte. Batteries comprising stacks of such cells are also described. |
