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 |