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  • An illustration of a battery. For batteries to generate electricity, charged atoms, called ions (pink and green), travel between a negative node (anode) and a positive node (cathode) with the help of a liquid electrolyte solution.
    Brett Savoie, Purdue University
    An illustration of a battery. For batteries to generate electricity, charged atoms, called ions (pink and green), travel between a negative node (anode) and a positive node (cathode) with the help of a liquid electrolyte solution.
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