Fuel cells. Fuel cell history. First demonstrated in principle by British Scientist Sir Willliam Robert Grove in 1839. Grove’s invention was based on idea of reverse electrolysis. What is a fuel cell. Creates electricity through electrochemical process Operates like a battery
Electrons collect on the negative terminal of the battery. Normally some type of load like a motor or bulb is connected using wire from positive terminal of the battery to its negative terminal
Inside the battery itself, a chemical reaction produces the electrons. The speed of electron production by this chemical reaction (the battery's internal resistance) controls how many electrons can flow between the terminals. Electrons flow from the battery into a wire, and must travel from the negative to the positive terminal for the chemical reaction to take place.