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| Laptop Batteries 101The earliest type of battery used the chemicals Nickel Cadmium (NiCd, NiCad), and was very quick to charge and was also able to handle high loads. However, these chemicals are highly toxic. The next generation of batteries, the Nickel Metal Hydride (NiMh, NiMH) batteries, now use Nickel and other rare earth metals as its electrodes and Potassium... + Full Story |
| Extend Cell Phone BatteriesA battery consists of a cathode, an anode and an electrolyte. The cathode is a metal oxide strip, the anode a metal strip that has a tendency to oxidize, and the electrolyte a conducting medium in which the anode and cathode are kept. When the anode and cathode are connected, the anode draws oxygen atoms thus generating electricity. Various types... + Full Story |
When was the first battery made and who made the first battery?
The first inclination that an electrical path-way from an anode to a cathode within a battery or in this first instance “a frog” occurred in 1786, when Count Luigi Galvani (an Italian anatomist, 1737-1798) found that when the muscles of a dead frog were touched by two pieces of different metals, the muscle tissue twitched.
This led to idea by Count Alessandro Giuseppe Antonio Anastasio Volta (Feb. 18, 1745- March 5, 1827), an Italian physicist who realized that the twitching was caused by an electrical current that was created by chemicals. Volta’s discovery led to the invention of the chemical battery (also called the voltaic pile) in 1800. His first voltaic piles were made from zinc and silver plates (separated by a cloth) put in a salt water bath (brine). Volta improved the pile, using zinc and copper in a weak sulfuric acid bath and thus invented the first generator of continuous electrical current.
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