Researchers from the Fraunhofer Institute in Germany have developed a new type of battery using wood waste as a key material for energy storage. The process involves extracting lignin, a natural component found in wood, and converting it through heat treatment into hard carbon, which is then used in sodium-ion batteries instead of lithium.
This technology reduces reliance on rare and expensive minerals while lowering production costs. It is also considered safer, as the battery has a lower risk of overheating or exploding compared with conventional lithium-based batteries. In addition, using wood waste helps reduce pollution from burning biomass and supports more sustainable material use.
Wood-based batteries represent an important step toward cleaner energy solutions, potentially making energy storage more affordable and accessible in the future.
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