Synthesis and Investigation of CuGeO3 Nanowires as Anode Materials for Advanced Sodium-Ion Batteries

Abstract

Germanium is considered as a potential anode material for sodium-ion batteries due to its fascinating theoretical specific capacity. However, its poor cyclability resulted from the sluggish kinetics and large volume change during repeated charge/discharge poses major threats for its further development. One solution is using its ternary compound as an alternative to improve the cycling stability. Here, high-purity CuGeO3 nanowires were prepared via a facile hydrothermal method, and their sodium storage performances were firstly explored. The as-obtained CuGeO3 delivered an initial charge capacity of 306.7 mAh g−1 along with favorable cycling performance, displaying great promise as a potential anode material for sodium ion batteries.

Lithium Pre‐cycling Induced Fast Kinetics of Commercial Sb2S3 Anode for Advanced Sodium Storage

“…As illustrated in Figure b, the LSS displays similar voltage plateaus to that of CSS. The CSS exhibits a lithiation/delithiation capacity of 762/1140 mA h g −1 at a current density of 50 mA g −1 as shown in Figure , Supporting Information; the irreversible capacity loss of 33.15% can be ascribed to the formation of the Li‐containing SEI film and other irreversible reaction . It can be noted that the initial coulombic efficiency (CE) of CSS and LSS is 40.57% and 72.43% (Figure c) with corresponding irreversible capacity loss of 59.43% and 27.53% at a current density of 100 mA g −1 , respectively.…”

Nanowire of WP as a High‐Performance Anode Material for Sodium‐Ion Batteries

“…One‐dimensional (1 D) nanostructures such as nanorods, nanotubes, nanowires, and so on have been demonstrated as optimized anodes for SIBs, which can partly reduce the volume effect and shorten the pathway of Na + . In addition, the introduction of a toxic binder and conductive carbon cannot be ignored in the traditional process.…”

Fe7Se8 encapsulated in N-doped carbon nanofibers as a stable anode material for sodium ion batteries

“…Therefore, the research of SIB anode materials is still a great challenge compared to the large progress of cathode materials with promising electrochemical performance [7,8].…”