Electrochemical Patterning of Cu Current Collectors: An Enabler for Pure Silicon Anodes in High?Energy Lithium?Ion Batteries

Electrochemical Performance of Porous Carbon/Tin Composite Anodes for SodiumIon and LithiumIon Batteries

The electrochemical performance of mesoporous carbon (C)/tin (Sn) anodes in Na-ion and Li-ion batteries is systematically investigated. The mesoporous C/Sn anodes in a Na-ion battery shows similar cycling stability but lower capacity and poorer rate capability than that in a Li-ion battery. The desodiation potentials of Sn anodes are approximately 0.21 V lower than delithiation potentials. The ...

Six Thousand Electrochemical Cycles of Double-Walled Silicon Nanotube Anodes for Lithium Ion Batteries

Carbon NanotubeEnhanced Growth of Silicon Nanowires as an Anode for HighPerformance LithiumIon Batteries

Advanced lithium-ion batteries with high energy density, highrate capability, and excellent cycling performance are critically important for automotive and stationary energy storage applications such as electric vehicles, portable electronics, power tools, and energy storage for many types of renewable energy sources.[1–3] From the materials point of view, silicon is one of the most promising c...

Metal Current Collector-Free Freestanding Silicon-Carbon 1D Nanocomposites for Ultralight Anodes in Lithium Ion Batteries

Although current collectors take up more weight than active materials in most lithium ion battery cells, so far research has been focused mainly on improving gravimetric capacities of active materials. To address this issue of improving gravimetric capacities based on overall cell components, we develop freestanding nanocomposites made of carbon nanofibers (CNFs) and silicon nanowires (SiNWs) a...

Low-cost carbon-silicon nanocomposite anodes for lithium ion batteries

The specific energy of the existing lithium ion battery cells is limited because intercalation electrodes made of activated carbon (AC) materials have limited lithium ion storage capacities. Carbon nanotubes, graphene, and carbon nanofibers are the most sought alternatives to replace AC materials but their synthesis cost makes them highly prohibitive. Silicon has recently emerged as a strong ca...