In the global race to create more efficient and long-lasting batteries, some are betting on nanotechnology—the use of minuscule parts—as the most likely to yield a breakthrough.Improving batteries” performance is key to the development and success of many much-hyped technologies, from solar and wind energy to electric cars. They need to hold more energy, last longer, be cheaper and safer.Research into how to achieve that has followed several avenues, from using different materials than the existing lithium-ion batteries to changing the internal structure of batteries using nanoparticles—parts so small they are invisible to the naked eye.Nanotechnology can increase the size and surface of batteries electrodes, the rods inside the batteries that absorb the energy. It does so by effectively making the electrodes sponge-like, so that they can absorb more energy during charging and ultimately increasing the energy storage capacity.
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