Electric battery common fuels such as gasoline. In automobiles, this is somewhat offset by the higher efficiency of electric motors in converting chemical energy to mechanical work, compared to combustion engines. The usage of "battery" to describe a group of electrical devices dates to Benjamin Franklin, who in 1748 described multiple Leyden jars by analogy to a battery of cannon (Benjamin Franklin borrowed the term "battery" from the military, which refers to weapons functioning together). Italian physicist Alessandro Volta built and described the first electrochemical battery, the voltaic pile, in 1800. This was a stack of copper and zinc plates, separated by
Who Killed the Electric Car? against electric cars in national publications, even when electric cars seem to have little to do with their core business. At the end of the film, Chevron bought patents and controlling interest in Ovonics, the advanced battery company featured in the film. Ostensibly to prevent modern NiMH batteries from being used in non-hybrid electric cars. The documentary also refers to manipulation of oil prices by overseas suppliers in the 1980s as an example of the industry working to kill competition and keep customers from moving toward alternatives to oil. With GM as its primary example, the film documents that car