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Alkaline Batteries Versus Zinc Batteries

The nickel–iron battery was also developed by Waldemar Jungner in 1899; and commercialized by Thomas Edison in 1901 in the United States for electric vehicles and railway signalling. It is composed of solely non-toxic elements, not like many sorts of batteries that comprise poisonous mercury, cadmium, or lead. The nickel–cadmium battery was invented by Waldemar Jungner of Sweden in 1899. It uses nickel oxide hydroxide and metallic cadmium as electrodes. Cadmium is a poisonous factor, and was banned for many makes use of by the European Union in 2004.

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