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April 18, 2026ACS Sustainable Chemistry & Engineering

Dual-Functional Hydroxyethylidene Diphosphate Additive for Broadening the Operating Temperature Range and Optimizing the Reaction Kinetics of Electrolyte in Vanadium Redox Flow Battery

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Authors

HYHao YuMJMinghua JingWZWenxu Zhu

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Overview

Demonstrates improved thermal stability and electrochemical performance in vanadium electrolytes using hydroxyethylidene diphosphate additive.

Key Points

  • The research aims to investigate the effects of hydroxyethylidene diphosphate (HEDP) on the performance of vanadium redox flow batteries, particularly focusing on thermal stability and electrochemical activity.
  • Introduction of HEDP as a bifunctional additive in vanadium electrolytes
  • Systematic exploration of its impacts on thermal stability and electrochemical performance
  • Charge–discharge cycling conducted at 50 °C and a current density of 250 mA cm–2
  • HEDP effectively inhibits V species aggregation and crystallization.
  • Battery with HEDP shows approximately twice the capacity retention compared to unmodified control after 50 cycles.
  • Improved electrode-electrolyte contact enhances overall electrochemical activity.

Cite This Study

Yu et al. (2026) studied this question.

synapsesocial.com/papers/69e31f1a40886becb653e990https://doi.org/10.1021/acssuschemeng.5c13226
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