| Useful Information | Batteries,
like hydrogen, are not a source of energy. They are useful carriers
of energy.
The table below shows how much energy (both in watt-hours and in joules) is stored by one kilogram of battery (exclusive of its case) for batteries of various types. |
|
Energy Density
W-hr/kg |
Energy Density
J/kg |
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(Ni-Cd) |
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(Ag-Zn) |
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(Na-S) |
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(Li-S) |
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(Fe-Ti-H) |
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(Mg-H (Ni)) |
|
|
|
(for comparison) |
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We are grateful to Professor John Tanaka, University of Connecticut, Dep't of Chemistry, for providing this table.
