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A High Performing Zn‐Ion Battery Cathode Enabled by In Situ Transformation of V2O5 Atomic Layers

Lu, Yanying, Zhu, Tianyu, van den Bergh, Wessel, Stefik, Morgan, Huang, Kevin·2020·Angewandte Chemie International Edition

Abstract

Developing high capacity and stable cathodes is a key to successful commercialization of aqueous Zn‐ion batteries (ZIBs). Pure layered V 2 O 5 has a high theoretical capacity (585 mAh g−1), but it suffers severe capacity decay. Pre‐inserting cations into V 2 O 5 can substantially stabilize the performance, but at an expense of lowered capacity. Here we show that an atomic layer deposition derived V 2 O 5 can be an excellent ZIB cathode with high capacity and exceptional cycle stability at once. We report a rapid in situ on‐site transformation of V 2 O 5 atomic layers into Zn 3 V 2 O 7(OH)2⋅2 H 2 O (ZVO) nanoflake clusters, also a known Zn‐ion and proton intercalatable material. High concentration of reactive sites, strong bonding to the conductive substrate, nanosized thickness and binder‐free composition facilitate ionic transport and promote the best utilization of the active material. We also provide new insights into the V 2 O 5‐dissolution mechanisms for different Zn‐salt aqueous electrolytes and their implications to the cycle stability.

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Metadata

Authors
Lu, Y., Zhu, T., van den Bergh, W., Stefik, M., & Huang, K.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2020-08-06
Volume
59
Issue
39
Pages
17004-17011
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W3036898174
Cited by
252
References
2
FWCI
13.08
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A High Performing Zn‐Ion Battery Cathode Enabled by In Situ Transformation of V2O5 Atomic Layers. https://app.cochat.ai/papers/10.1002/anie.202006171
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Lu, Y., Zhu, T., van den Bergh, W., Stefik, M., & Huang, K. (2020). A High Performing Zn‐Ion Battery Cathode Enabled by In Situ Transformation of V2O5 Atomic Layers. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202006171

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