Nanowerk March 27, 2023
Researchers in South Korea have designed and constructed a hierarchical surface on carbon fiber (CF) using binders in fabricated CF paper (CFP). The lightweight CF with high mechanical properties established a 3D network structure as an alternative to Cu foil. The binders were transformed into oxygen-containing amorphous carbon and sodium carbonate (Na2CO3) using a low-temperature carbonization process which to uniform Li nucleation and a stable solid electrolyte interphase layer with inorganic components. In tests CFP with amorphous carbon and Na2CO3 (ANCFP) showed a low Li nucleation overpotential and smooth dendrite-free Li plating. The ANCFP electrode exhibited good cycling stability in half and symmetrical cells. A full-cell assembled using a LiFePO4 cathode with high loading achieved a high-energy density and an excellent capacity retention of 85% at 1 C after 300 cycles… read more. Open Access TECHNICAL ARTICLE
Schematic illustration of the Li nucleation and growth behaviors on PCFP and ANCFP. Credit: Advanced Energy MaterialsVolumeMaterials Volume 13, Issue 9 2203770Â