<p>➀ This study examines the fabrication of nanoporous helium-silicon thin films for lithium-ion battery anodes using a plasma-assisted co-deposition process; </p><p>➁ The research focuses on addressing the volume expansion issue of silicon during lithiation and delithiation processes; </p><p>➂ The study demonstrates the potential of He-Si co-deposition thin films for high-performance LIB applications.</p>