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Nanowire battery
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<p>A nanowire battery uses <a href="/facts/Nanowires/Ege0K9Ek">nanowires</a> to increase the surface area of one or both of its <a href="/facts/Electrode/251PaKX8">electrodes</a>, which improves the capacity of the battery. Some designs (silicon, germanium and <a href="/facts/Surface_properties_of_transition_metal_oxides/w6JtYxCW">transition metal oxides</a>), variations of the <a href="/facts/Lithium-ion_battery/3L22xFhB">lithium-ion battery</a> have been announced, although none are commercially available. All of the concepts replace the traditional <a href="/facts/Graphite/sSf3KMXr">graphite</a> anode and could improve battery performance. Each type of nanowire battery has specific advantages and disadvantages, but a challenge common to all of them is their fragility. </p>