Fabrication of polypyrrole/vanadium oxide nanotube composite with enhanced electrochemical performance as cathode in rechargeable batteries
Source abstract
Abstract
Abstract Vanadium oxide nanotubes (VO x NTs) with hollow as well as multi-walled features were fabricated under hydrothermal condition by soft-template method. This novel VO x NTs can be used as cathode material for lithium ion batteries (LIBs), but displaying low specific capacity and poor cycling performance owing to the residual of a mass of soft-template (C 12 H 27 N) and intrinsic low conductivity of VO x . Cation exchange technique and oxidative polymerization process of pyrrole monomers were conducted to wipe off partial soft-template without electrochemical activity within VO x NTs and simultaneously form polypyrrole coating on VO x NTs, respectively. The resulting polypyrrole/VO x NTs nanocomposite delivers much improved capacity and cyclic stability. Further optimizations, such as complete elimination of organic template and enhancing the crystallinity, can make this unique nanostructure a promising cathode for LIBs.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Battery Materials · Transition Metal Oxide Nanomaterials · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
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