Complex sentence: The car is powered by a Ballard 902 Fuel cell, the fuel cell compresses hydrogen in it's 5000 psi tank and creates electricity once the hydrogen is seperated into protons and electrons.
Split into simpler sentences: The car is powered by a Ballard 902 Fuel cell. The fuel cell compresses hydrogen in its 5000 psi tank and creates electricity once the hydrogen is separated into protons and electrons.