Rarinn's Ideas

I recently calculated that current lithium production, if shared equally among all humans, would be just enough to produce around 0.3 kWh of LiFePO4 batteries per year (they even don't require cobalt). I would like a car that can drive for 3 hours at maximum speed, and then be quickly refueled. Small car requiring 22 kW of power during that scenario would require 66 kWh of batteries, which would weight approximately 500 kg. Pure hydrogen storage is bulky and extremely dangerous, that is why using ammonia as its carrier seems to be best option (it is the hydrogen carrier with highest volumetric density, that is easily stored as slightly pressurized liquid). If maximum payload of a car is 500 kg, and then I add 500 kg of batteries, then I need many components of a car to be twice as strong and powerful.

I noticed that photovoltaics are really cheap now. 27 kW of peak power would cost around 30 000 PLN (1 USD is equal to 3.65 PLN when I am writing this). Array of 60 of those, with peak power of 475 W each, which actually will be closer to 450 W, because of marketing and degradation progressing with time, would cost under 30 000 PLN now.