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September 21, 2025ACS Energy Letters

Dual-Site Mn-Doped Vanadate Cathodes Involving Vanadium and Manganese Dual Redox Chemistry for High-Energy Aqueous Zinc-Ion Batteries

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Authors

XXXinghe XuTWTianhao WangXZXudong Zhao

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Overview

Combined redox reactions improve energy density in Mn-doped vanadate cathodes, highlighting potential for AZIBs.

Key Points

  • Enhanced energy density of 1.83 times that of vanadium-oxide cathodes was achieved, demonstrating improved capacity.
  • The dual redox chemistry of vanadium and manganese significantly contributes to the cathodes' performance and durability.
  • Intralayer Mn-ions serve as redox centers while interlayer Mn-ions strengthen the structure, improving cycling life.
  • The tailored Mn0.4V1.7O5·0.5H2O material showed ultralong cycling durability of 10000 cycles in aqueous zinc-ion batteries.

Cite This Study

Xu et al. (2025) studied this question.

synapsesocial.com/papers/68d46cbf31b076d99fa68b36https://doi.org/10.1021/acsenergylett.5c02376
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