re: #465 dingleB

I would file that design under “Engineers Gone Wild”. I have on very good authority that the dirty little secret when employing fuel cell technology to automobiles is the production of highly lethal Hydrazine (think Space Shuttle fuel and satellite shoot down.)

Hydrazine is highly toxic and dangerously unstable, especially in the anhydrous form. According to the U.S. Environmental Protection Agency:

Symptoms of acute (short-term) exposure to high levels of hydrazine may include irritation of the eyes, nose, and throat, dizziness, headache, nausea, pulmonary edema, seizures, coma in humans. Acute exposure can also damage the liver, kidneys, and central nervous system. The liquid is corrosive and may produce dermatitis from skin contact in humans and animals. Effects to the lungs, liver, spleen, and thyroid have been reported in animals chronically exposed to hydrazine via inhalation. Increased incidences of lung, nasal cavity, and liver tumors have been observed in rodents exposed to hydrazine

Hydrazine is a type of rocket fuel, and isn’t used in fuel cells.
Fuel cells use hydrogen. Right now, hydrogen comes from natural gas, at some expense and waste of the energy content.
Hydrogen from water is an energy storage medium, and would require a massive investment in nuclear power plants to electrolyze sea water to make it economical.