SPAIN — Researchers at the University of the Basque Country (UPV/EHU) have developed a hybrid supercapacitor using carbon derived from Pinus radiata waste. The lithium-ion capacitor features electrodes made from discarded wood particles, offering a sustainable and cost-effective energy storage solution. With abundant biomass resources in the Basque Country in Spain, the team utilized environmentally friendly and inexpensive processes to create high-performance electrodes. Their findings highlight the potential of biomass-based materials in producing efficient, eco-friendly energy storage systems. …The UPV/EHU team developed a cost-effective lithium-ion capacitors using carbon from Pinus radiata waste, an abundant and sustainable resource in Biscay, Spain. They produced high-performance electrodes using carbon sourced from biomass instead of costly chemicals or energy-intensive procedures. …Not all biomass provides suitable carbon for energy storage applications, but results demonstrated the effectiveness of carbon derived from insignis pine.