Afvalmateriaal uit oude telefoons wordt omgezet in goedkope natriumaccu's

Chinese scientists created a high-performance sodium-ion battery anode by repurposing discarded phone batteries and industrial lignin waste. The material maintained 1,062 mAh/g capacity after 300 cycles, leveraging a honeycomb structure for enhanced energy storage. This recycling method provides a cheaper, more sustainable alternative to lithium-ion technology.