A major byproduct in the papermaking industry is lignosulfonate, a sulfonated carbon waste material, which is typically combusted on site, releasing CO2 into the atmosphere after sulfur has been captured for reuse. Now researchers at Rensselaer Polytechnic Institute , Troy, N.Y., USA, have developed a method to use this cheap and abundant paper biomass to build a rechargeable lithium-sulfur battery.
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