Scientists at the University of Maryland has made some headway in improving batteries for large-scale energy storage applications. Sodium-ion batteries is one type of battery used for energy storage systems, but have so far been plagued by a prohibitively short lifespan. As the anode expands after every charge and discharge of sodium ions, they tend to break the brittle base, leading to a disintegration of the entire battery after only 20 charge cycles.
By using a thin layer of wood fibers coated with conductive carbon nanotubes as the base, the battery is fortified, and able ot withstand the swelling of the anode for up to 400 charge cycles. With this discovery, sodium-ion batteries become one of the most durable nanobatteries out there.
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