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Updated: Aug 3, 2026
10:03
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
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Element Screening Engineering for High-Entropy Alloy Anodes: Achieving Fast and Robust Li-Storage With Optimal
Xinwei Li1,2, Jeng-Han Wang3, Lufeng Yang4,5
1School of Materials Science & Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Advanced Materials (Deerfield Beach, Fla.)
|October 4, 2024
Summary
Researchers uncovered element selection rules for high-entropy alloy anodes, enhancing lithium storage performance. Optimal designs leverage increased atomic numbers and high configurational entropy for superior battery anodes.
Area of Science:
- Materials Science
- Electrochemistry
- Solid-State Chemistry
Background:
- High-entropy alloys (HEAs) offer enhanced material properties but lack optimal element selection methodologies.
- Rational design of HEA anodes is crucial for improving lithium storage performance in batteries.
Purpose of the Study:
- To establish element selection rules for designing HEA anodes with exceptional lithium storage capabilities.
- To investigate the relationship between elemental composition and performance in HEA anodes.
Main Methods:
- Modification of diamond-structured Germanium (Ge) with Phosphorus (P) to create a sphalerite structure.
- Incorporation of Zinc (Zn) and other elements to stabilize the structure and enhance metallic conductivity.
- Theoretical calculations and experimental validation of Li-storage performance based on elemental composition.
Main Results:
- Lithium storage performance correlates positively with increasing atomic number of incorporated elements (BZnGeP₃ < AlZnGeP₃ < GaZnGeP₃ < InZnGeP₃).
- InZnGeP₃ electrodes exhibited superior Li-ion affinity, electronic and ionic transport, capacity, reversibility, and mechanical integrity.
- Developed HEA anodes (e.g., GaCuSnInZnGeP₆) demonstrated excellent Li-storage performance and phase stability due to high configurational entropy.
Conclusions:
- This study provides critical insights into element screening for HEA anodes in lithium-ion batteries.
- The findings offer guidance for the rational design and element combination in other HEA functional materials.
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