(February 18, 1745 – March 5, 1827)

Alongside intelligence and perspicacity, opportunities and accidents are integral parts of discoveries in both arts and sciences. Alessandro Volta was a researcher who saw opportunity where others did not. His fame stemmed from the fact that he deciphered what his compatriot, Luigi Galvani, could not. Galvani was the first to notice that electricity was generated when different metals were connected to the muscles of a dead frog. But he interpreted it erroneously: by insinuated that the animal produced the current. Volta, on the other hand, realized that it was an electrolytic phenomenon: facilitated by the electrodes (i.e. the metals) and the electrolyte (i.e. the aqueous substances in the frog’s tissues). To buttress his point, he went ahead and replicated similar process without using animal tissues. He replaced those tissues with brine (i.e. concentrated sodium chloride solution, as electrolyte), and determined that silver and zinc are effective electrodes for this electrolyte. This invention heralded what we know today as batteries. And Volta deservedly received credits for developing the first electrical cell: known then as voltaic cell, and nowadays as battery. From cameras to mobile phones, and from cars to aircrafts, the importance of batteries cannot be overemphasized. Over the centuries, our lives have become heavily dependent on them.


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