Niobium‐Based Oxide for Anode Materials for Lithium‐Ion Batteries

Abstract

Recently, it has become imperative to develop high energy density as well as high safety lithium‐ion batteries (LIBS) to meet the growing energy demand. Among the anode materials used in LIBs, the currently used commercial graphite has low capacity and is a safety hazard due to the formation of lithium dendrites during the reaction. Among the transition metal oxide (TMO) anode materials, TMO based on the intercalation reaction mechanism has a more stable structure and is less prone to volume expansion than TMO based on the conversion reaction mechanism, especially the niobium‐based oxide in it has attracted much attention. Niobium‐based oxides have a high operating potential to inhibit the formation of lithium dendrites and lithium deposits to ensure safety, and have stable and fast lithium ion transport channels with excellent multiplicative performance. This review summarizes the recent developments of niobium‐based oxides as anode materials for lithium‐ion batteries, discusses the special structure and electrochemical reaction mechanism of the materials, the synthesis methods and morphology of nanostructures, deficiencies and improvement strategies, and looks into the future developments and challenges of niobium‐based oxide anode materials.

Rapid Growth of Niobium Oxide Nanowires by Joule Resistive Heating

“…The rapid growth observed in these studies is associated with a diffusion process of the oxygen inside the metal that is accelerated by electromigration due to the high electrical currents employed [23]. Nb 2 O 5 material obtained with this technique can be applied where having the oxide on a metallic substrate is useful, such as in energy storage devices [24,25], sensing devices [12], or field emitters [11].…”