| 摘要 |
A zinc powder for alkaline batteries consists of 0.0005-1 % of aluminium, 0.001-2 % of at least one of bismuth, indium and gallium, one or several elements of the group of elements consisting of magnesium, strontium, barium and REM such that the ratio between the number of moles of aluminium and the number of moles of that element or the sum of the number of moles of the several elements amounts at most to 2 and such that the sum of the concentrations of aluminium and that element or those elements amounts at most to 2 %, and possibly Ca such that the ratio between the number of moles of aluminium and the sum of the number of moles of calcium and of that element or the sum of the number of moles of calcium and of those elements amounts at most to 2 and such that the sum of the concentrations of aluminium, calcium and that element or those elements amounts at most to 2 %, the remainder being zinc; REM being a rare earth metal or a mixture of rare earth metals. This powder can comprise up to 20 ppm of iron. |
