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April 3, 2026ACS Sustainable Chemistry & Engineering

Interphase Optimization by Coupling FEC-Involved Solvation Structure with Mixed Salts for High-Performance Sodium-Ion Batteries

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Authors

MZMingyu ZhiQZQingqing ZhangWSWeili Sun

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Overview

This work demonstrates improved interfacial stability in sodium-ion batteries, indicating potential for longer lifespan and higher performance.

Key Points

  • This research aims to enhance the interfacial stability and overall performance of sodium-ion batteries using a novel electrolyte design.
  • Developed an inorganic phase modulation strategy incorporating multicomponent functional species.
  • Optimized electrolyte includes succinonitrile, sodium difluoro(oxalato)borate, and sodium hexafluorophosphate.
  • Constructed a unique thin interphase film on electrode surfaces using nitrides, borides, and phosphates.
  • Achieved improved interfacial compatibility with sodium metal and hard carbon anodes.
  • Increased capacity retention in assembled hard carbon||NaNi1/3Fe1/3Mn1/3O2 full cells.
  • Mitigated solvent decomposition and transition metal dissolution.

Cite This Study

Zhi et al. (2026) studied this question.

synapsesocial.com/papers/69cf5d345a333a821460ad22https://doi.org/10.1021/acssuschemeng.6c00479
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