
265Advanced Batteries and Improvements inElectrode Materials
alkaline iron electrodes at a faster rate than under ambient conditions. The
wet shelf life in the discharged state exceeds 2 years. The battery provides
the normal cycle life even after a continuous period of wet storage in its dis-
charged state. The wet shelf-life can be extended to 10 years or more with the
application of a reconditioning cycle every 6 months or so. The only routine
Discharge
Step I
Step II
0
1.0
1.1
1.2
1.3
1.4
1.5
51015 20
Charge
FIGURE 7.7
Typical two-step discharge and charge prole of Ni–Fe cell. (Reprinted with permission from
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