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Related Experiment Video

Updated: May 15, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Data-Knowledge-Dual-Driven Electrolyte Design for Fast-Charging Lithium Ion Batteries.

Yi Yang1,2,3, Nan Yao3, Yu-Chen Gao3

  • 1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P.R. China.

Angewandte Chemie (International Ed. in English)
|April 7, 2025
PubMed
Summary
This summary is machine-generated.

Developing advanced electrolytes for electric vehicles (EVs) is crucial for fast charging. This study introduces a novel data-driven approach for high-temperature fast-charging (HTFC) electrolytes, enhancing lithium-ion battery (LIB) performance and safety.

Keywords:
Data–knowledge‐dual‐driven screeningFast chargingHigh temperatureLithium‐ion batteriesMolecular design

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Computational Chemistry

Background:

  • Electric vehicles (EVs) require fast charging, but high-rate charging of lithium-ion batteries (LIBs) generates heat, degrading electrolytes and compromising safety.
  • Existing research on high-temperature fast-charging (HTFC) electrolytes is insufficient to meet performance demands.

Purpose of the Study:

  • To develop a novel data-knowledge-dual-driven approach for designing HTFC electrolytes.
  • To identify and validate new electrolyte formulations for improved high-temperature fast-charging performance in LIBs.

Main Methods:

  • Integrated high-throughput calculations, machine learning, and experimental verification.
  • Screened potential electrolyte additives using the developed data-driven approach.
  • Conducted extensive cycling tests on pouch cells at elevated temperatures.

Main Results:

  • Successfully screened ethyl trimethylacetate as a promising electrolyte component for HTFC.
  • Demonstrated significantly restricted side reactions under high-temperature fast-charging conditions.
  • Achieved stable and safe fast charging (15-min to 80% capacity) for over 4100 cycles at 45 °C without lithium plating in 181 Wh kg-1 pouch cells.

Conclusions:

  • The data-knowledge-dual-driven approach is effective for developing advanced HTFC electrolytes.
  • Ethyl trimethylacetate enables state-of-the-art performance and safety for fast-charging LIBs at elevated temperatures.
  • This work addresses a critical bottleneck in EV battery technology, paving the way for faster charging solutions.