Style Evolution: Allison Williams
In 1800, Alessandro Volta’s first battery incorporated alternating sandwiches of zinc and silver (one metal on one end acting as the negative pole, the other as the positive pole) separated by paper layers. In modern terms, this voltaic pile served as an electrolyte in the overall process of creating and controlling electrical current inside a battery. Experiments over time with various metals and electrolyte components (creating conditions for different types of chemical reactions and different levels of voltage) led to the development of a variety of different batteries by the late twentieth century. Notable among these were Energizer’s Advanced Lithium battery and titanium batteries offered by a number of commercial producers. Lewis Urry’s own improvements over previously common zinc-carbon batteries using an acidic electrolyte involved the use of zinc and manganese dioxide with an alkaline electrolyte (typically potassium hydroxide). The quantity of electrical current produced by this combination (depending on size, usually indicated by A, AA, or AAA categories for smaller batteries, or C and D for larger models) is only one factor for evaluating the alkaline battery’s performance. Longevity which can be three to five times that of common batteries catapulted the alkaline battery into the top commercially competitive position soon after its introduction in the 1960’s.
Style Evolution: Allison Williams photos.
Style Evolution: Allison Williams Photo Gallery
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