From the molecular level, are not all the energy obtained from the redox reaction?
Because one to be recycled, and secondly to be converted into electricity
The battery is carrying the oxidant, and the hydrocarbon is the air as an oxidant direct reaction, which is less than the rocket engine than the jet engine than the reasons for the red.
You find the block out of the lithium battery thrown into the fire try ........ look at how the energy density