It has long been known that electrolytic manganese dioxide (EMD) exhibits a limited rechargeability in alkaline solution. In the present work we describe how some included ions affect this rechargeability. The rechargeability of EMD electrodes was measured in terms of a cumulative capacity. This was defined as the total discharge capacity of an electrode summed over a fixed number of cycles. This parameter had the advantage that, under the conditions of our test, it was reproducible to better than ± 8%. By comparing cumulative capacities we found which included ions were advantageous and which were not. Results for a number of ions are summarized and discussed.
The rechargeability of electrolytic γ‐MnOz electrodes doped with different ions (Ni, Zn, Fe, Ti, V, Mo, Co, Cfrom acetylene black and from graphite) has been measured in terms of a cumulative capacity defined as the total discharge capacity of an electrode summed over a fixed number of cycles.
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