Issue 3, 2021

Self-supporting V2O5 nanofiber-based electrodes for magnesium–lithium-ion hybrid batteries

Abstract

The increasing demand for high energy, sustainable and safer rechargeable electrochemical storage systems for portable devices and electric vehicles can be satisfied by the use of hybrid batteries. Hybrid batteries, such as magnesium–lithium-ion batteries (MLIBs), using a dual-salt electrolyte take advantage of both the fast Li+ intercalation kinetics of lithium-ion batteries (LIBs) and the dendrite-free anode reactions. Here we report the utilization of a binder-free and self-supporting V2O5 nanofiber-based cathode for MLIBs. The V2O5 cathode has a high operating voltage of ∼1.5 V vs. Mg/Mg2+ and achieves storage capacities of up to 386 mA h g−1, accompanied by an energy density of 280 W h kg−1. Additionally, a good cycling stability at 200 mA g−1 over 500 cycles is reached. The structural integrity of the V2O5 cathode is preserved upon cycling. This work demonstrates the suitability of the V2O5 cathode for MLIBs to overcome the limitations of LIBs and MIBs and to meet the future demands of advanced electrochemical storage systems.

Graphical abstract: Self-supporting V2O5 nanofiber-based electrodes for magnesium–lithium-ion hybrid batteries

Supplementary files

Article information

Article type
Paper
Submitted
09 Kax 2020
Accepted
18 Kax 2020
First published
05 Qun 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 1354-1359

Self-supporting V2O5 nanofiber-based electrodes for magnesium–lithium-ion hybrid batteries

A. M. Diem, K. Hildenbrand, L. Raafat, J. Bill and Z. Burghard, RSC Adv., 2021, 11, 1354 DOI: 10.1039/D0RA10384E

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