0x668143c4…385fsent to0x37827f01…4308·#11,764,037·view on Etherscan
K+ is adsorbed to surface phase of water. This expels protons. The high concentration of free protons drive synthesis of phosphate bonds, each bond storing 2 protons. The electrical circuit formed has the anode reaction when surface water breaks down, releasing electrons, and cathode reaction when phosphate bonds break, releasing protons that combine with the electrons, to form hydrogen gas, that combines with molecular oxygen to form water, releasing a lot of heat.