For a chemistry report I am comparing the chemistys of different battery brands. Anyway, one of the tests I did was to plot the battery voltage Vs cell temperature.
From my knowledge of chemistry and half cells, I know that as temperature increase cell voltage should go up. This is because high temperatures promote more ion movement etc and generally speed up reactions. (If they are endothermic)
Anyway, I plotted my results and got the following graph:
Any idea why?
This was done with a standard AA 1.5V cell.