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LeydenJar Technologies offers 100% silicon anode rolls that boost the energy density of Li-ion battery cells with up to 70% (1.350 Wh/l).
Leiden, Zuid Holland, Pays-Bas
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In current Li-ion battery cells, the graphite anode is the bottleneck in increasing the energy density. Silicon provides a tenfold capacity over graphite as anode material. The challenge however is to use silicon in a mechanical stable manner, as silicon swells during lithiation. Consequently, only a small percentage of silicon is used in modern composite carbon-silicon anodes, enabling a small improvement of energy density.