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Question
Which Is Better NiMH Or NiCd Battery?
Which Is Better NiMH Or NiCd Battery?
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Solution
Battery: A battery is a device that uses an electrochemical oxidation-reduction (redox) reaction to convert chemical energy contained within its active materials directly into electric energy.
Although NiMH batteries have greater capacities than NiCd batteries, they do not last as long when used in low current applications such as remote controls and clocks. NiMH batteries have roughly 40% more energy density than Ni-Cd (nickel-cadmium) batteries. NiMH batteries last less time than NiCd batteries.
Advantages of NiCd battery over NiMH battery:
- NiMH has greater capacities than NiCd batteries. NiCd suffers from memory effect while NiMH doesn’t
- NiCd contains toxic materials while NiMH doesn’t
- NiCd has a lower self-discharge rate than NiMH
Battery: A battery is a device that uses an electrochemical oxidation-reduction (redox) reaction to convert chemical energy contained within its active materials directly into electric energy.
Although NiMH batteries have greater capacities than NiCd batteries, they do not last as long when used in low current applications such as remote controls and clocks. NiMH batteries have roughly 40% more energy density than Ni-Cd (nickel-cadmium) batteries. NiMH batteries last less time than NiCd batteries.
Advantages of NiCd battery over NiMH battery:
- NiMH has greater capacities than NiCd batteries. NiCd suffers from memory effect while NiMH doesn’t
- NiCd contains toxic materials while NiMH doesn’t
- NiCd has a lower self-discharge rate than NiMH
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