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 μ315 mA h/g at 20 mA/g with a good capacity retention.
Original language | English |
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Journal | ACS Applied Energy Materials |
DOIs | |
State | Accepted/In press - 2021 |
Bibliographical note
Funding Information:This work was partially supported by the Ministry of Energy and by the Israel Ministry of Science and Technology.
Publisher Copyright:
© 2021 American Chemical Society.
Keywords
- aqueous electrolyte solutions
- aqueous zinc-ion batteries
- co-intercalation
- copper vanadate
- saturated electrolytes