The nickel-cadmium (NiCd) battery is another common secondary battery that is suited for low-temperature conditions with a long shelf life. However, the nickel-cadmium batteries are more expensive and their capacity in terms of watt-hours per kilogram is less than that of the nickel-zinc rechargeable batteries.
负极cathode (reduction):
Cd+2OH- → Cd(OH)2+2e-
充电:Cd(OH)2+2e- → Cd+2OH
正极anode (oxidation):
2e-+NiO2+2H2O → Ni(OH)2+2OH-
充电:Ni(OH)2+2OH- → 2e-+NiO2+2H2O
全反应式overall:
放电:Cd+NiO2+2H2O → Cd(OH)2+Ni(OH)2
充电:Cd(OH)2+Ni(OH)2 → Cd+NiO2+2H2O
1.標稱電壓1.2V/Cell;系統穩定度高
2.設計期待壽命:20年
3.環境溫度對電池壽命影響少
4.可加水式電池;需定期加水
5.有低、中、高功率及啟動用途區分
6.循環使用壽命長
7.耐過充電、過放電特性較佳