3 ms·
You don't want your fuel cell chemistry to be contaminated. The fuel cell needs oxygen from the air. That's also why it's so light, since in H2O, 90% of the we
by Gravityloss 5y ago
You don't want your fuel cell chemistry to be contaminated. The fuel cell needs oxygen from the air.
That's also why it's so light, since in H2O, 90% of the weight is the oxygen.
- merb 5y ago> That's also why it's so light, since in H2O, 90% of the weight is the oxygen. which also makes it unsuitable for moon cars.
- Gravityloss 5y agoOr alternately, you can use a lithium battery with air. But it gains more weight as it is used up. Anyway, energy density is comparable to gasoline. https://en.wikipedia.org/wiki/Lithium%E2%80%93air_battery https://en.wikipedia.org/wiki/Lithium%E2%80%93air_battery