Multifold Electrochemical Protons and Zinc Ion Storage Behavior in Copper Vanadate Cathodes

Munseok S. Chae, Ran Attias, Ben Dlugatch, Yosef Gofer, Doron Aurbach

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Zinc-based batteries are gaining attention as a promising candidate for large-scale energy storage systems due to their safety, abundance of elemental zinc, low cost, and ease of handling in air. However, only a few zinc storage materials, namely, intercalation cathode materials, were reported, and there is a need to develop host structures with improved performance. Here, we investigate copper vanadate as a cathode material and uncover its proton and zinc storage behavior by combined electrochemical characterization, XRD analysis, and ion migration barrier calculations for the cation diffusion pathways. The material showed a highly reversible capacity of ∼315 mA h/g at 20 mA/g with a good capacity retention.

Original languageEnglish
Pages (from-to)10197-10202
Number of pages6
JournalACS Applied Energy Materials
Volume4
Issue number9
DOIs
StatePublished - 27 Sep 2021

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society

Funding

This work was partially supported by the Ministry of Energy and by the Israel Ministry of Science and Technology.

FundersFunder number
Ministry of Energy
Ministry of Energy
Ministry of science and technology, Israel

    Keywords

    • aqueous electrolyte solutions
    • aqueous zinc-ion batteries
    • co-intercalation
    • copper vanadate
    • saturated electrolytes

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