Trivia Post: First alkaline battery
Urry experimented with different combinations of materials. He struck pay dirt when he used zinc in a loosely packed powder form. He also discarded the button-shape of the earlier alkaline batteries, going instead with a cylinder shape of commercial batteries already on the market. By the late 1950's he'd honed what he thought was a pretty good alkaline battery, and was ready to try and persuade the company to put the battery on the market. Using a mockup battery from an empty flashlight shaft, Urry put his prototype into a toy car, and a carbon zinc battery into an identical toy. He grabbed Eveready vice president of technology R.L. Glover and headed for the cafeteria at the Cleveland plant.
By the early 1960's, the alkaline was changing the way we lived. If you wanted to listen to the radio, you could go for a walk with your transistor, rather than gathering with family around the living-room console. The alkaline battery continues to improve. Energizer officials say today's battery lasts 40 times longer than the 1959 prototype.
Text taken from http://corrosion-doctors.org/PrimBatt/urry.htm