This is a table of specific energy densities by magnitude. Unless otherwise noted, these values assume standard ambient temperature and pressure.
Order of magnitude J/(kg) |
Specific energy density | Storage method |
---|---|---|
101 | 1 | gravitational potential energy stored by raising any material by 1 meter (near the Earth's surface) |
102 | 2.8 | day laborer (for that day) |
4 | heel-strike generator using electrostrictive polymers | |
103 | ||
104 | ||
105 | 2.16 | NiMH rechargeable batteries |
6.12 | lead acid car batteries | |
6.3M | Li-ion watch batteries | |
107 | 1.6 | wood fuel |
1.7 | protein (about 4 nutritional calories per gram) | |
carbohydrates (about 4 nutritional calories per gram) | ||
2.5 | ethanol | |
2.9 | alcohol (about 7 nutritional calories per gram) | |
3.8 | fat (about 9 nutritional calories per gram) | |
4.4 | petrol (gasoline) | |
108 | 1.2 | hydrogen |
1013 | 8.6 | nuclear fission: natural uranium in fast breeder reactor |
1014 | 5.76 | nuclear fusion: deuterium-tritium |
1016 | ~8.9876 | matter-antimatter annihilation: indeterminate matter and antimatter |
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