Blended 1D carbon nanostructures synergistically enhance electron and ion transport in silicon nanoparticle electrodes

• DOI: 10.1016/j.xcrp.2024.101974
• Publication Date: 2024-05-15T14:40:14Z
• Authors: Jae Ho Kim; Zoey Huey; Gabriel M. Veith; Chun-Sheng Jiang; Nathan R. Neale; G. Michael Carroll
• Keywords: Carbon fibers

Carbon additives in lithium-ion battery electrodes are needed to provide electrical conductivity through the electrode but also can have a strong influence on morphology that dictates ion transport. For conversion-type electrodes, both electron and transport properties key parameters determining cycling performance. Understanding effect of carbon change is critical for rational design. In this work, we study impact 1-dimensional (1D) aspect ratio silicon nanoparticle-based composite electrodes. We demonstrate 1D nanostructures platform decouple optimize each property separately. Furthermore, show combining different single provides cumulative improvement ionic electronic conductivity. This promising architecture strategy becomes especially useful thick with mass loadings >1.5 mg cm−2.