11.22.04
Batteries
Energy storage, | peak energy | |
---|---|---|
watthours/pound | technology | watts/pound |
————— | ———————– | ———– |
worst | dry film capacitor | best |
oil-impregnated film capacitor | ||
| | electrolytic capacitor | /| |
| | super- or ultra-capacitor | | |
| | sealed battery | | |
|/ | flooded battery | | |
electroplating cell | ||
best | fuel cell | worst |