LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Cobalt-doped Vanadium Pentoxide Microflowers as Superior Cathode for Lithium-Ion Battery

Photo by miningwatch_portugal from unsplash

To meet the ever-increasing demand for higher energy density and power density, developing cathode materials with high specific capacity has become an urgent problem. V2O5 has been considered as one… Click to show full abstract

To meet the ever-increasing demand for higher energy density and power density, developing cathode materials with high specific capacity has become an urgent problem. V2O5 has been considered as one of the most promising cathodes for its high theoretical specific capacity (443 mAh g−1), abundant source, and low cost. In this work, cobalt-doped vanadium pentoxide (Co-V2O5) microflowers were synthesized through a simple solvothermal method. The doped Co not only improves the electronic conductivity but also increases the diffusion coefficient of the lithium ions. Benefiting from the appropriate amount of Co doping, the charge transfer impedance decreases from 51 to 28 Ω and the diffusion coefficient of the lithium ions increased from 2.81×10−17 cm2 s−1 to 3.31×10−16 cm2 s−1. The optimal Co-V2O5 microflowers deliver a high reversible capacity of 166 mAh g−1 after 200 cycles.

Keywords: vanadium pentoxide; lithium; cobalt doped; doped vanadium

Journal Title: JOM
Year Published: 2021

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.