Breath in.
Ah, that’s better, oxygen, sweet lovely oxygen.
Sweet highly reactive, high potential energy oxygen.
How convenient that we are surrounded by an abundance of it. We can just scoop it up, and oxidise a whole host of fuels and not need to carry a single gram of it around.
Not only that but when you burn fuel with it, it produces water and carbon dioxide, and you can just dump that back into the air. Double win!
By contrast, electric cars needs to carry their own oxidiser for their “fuel”, and worse still, they need to carry the products with them, as well as the storage for it. Every single gram of it.
These facts contribute to a much higher weight for the same amount of energy storage. By no means the only reason however, but enough for you to get started.
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