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Updated: Sep 17, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Layered-columnar cathode materials for sodium-ion batteries.

Xiaolin Zhao1,2, Yi Li1,2, Youwei Wang1,2

  • 1State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, China.

Nature Communications
|July 2, 2025
PubMed
Summary
This summary is machine-generated.

A novel layered-columnar material, NaFe[O3PCH(OH)CO2], enhances sodium-ion batteries with high-rate capability and long cycle life. Its stable structure and Fe redox reaction enable efficient energy storage for grid applications.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Developing advanced cathode materials is critical for large-scale sodium-ion battery energy storage.
  • High-rate capability and extended cycle life are key performance metrics for battery materials.

Purpose of the Study:

  • To design and investigate a novel layered-columnar material, NaFe[O3PCH(OH)CO2], as a high-performance cathode for sodium-ion batteries.
  • To evaluate the electrochemical performance, including specific capacity, cycle life, and rate capability, of the designed material.

Main Methods:

  • Synthesis and characterization of the layered-columnar material NaFe[O3PCH(OH)CO2].
  • Electrochemical testing, including galvanostatic cycling and rate capability measurements.
  • Experimental and theoretical investigations to understand the material's structural and electrochemical properties.

Main Results:

  • NaFe[O3PCH(OH)CO2] exhibits a reversible specific capacity of 106.1 mAh g-1 after 50 cycles (93.4% of theoretical capacity) within 1.5-4.2 V.
  • The material demonstrates low-strain characteristics during electrochemical cycling.
  • Excellent long-term stability with 92.2% capacity retention after 1000 cycles at 240 mA g-1 (0.0078% loss per cycle).

Conclusions:

  • The layered-columnar structure design is a viable strategy for developing high-performance cathode materials for sodium-ion batteries.
  • The stable C-P covalent bonds contribute significantly to the material's extended cycle life.
  • NaFe[O3PCH(OH)CO2] shows great potential for large-scale energy storage applications.