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Updated: Jun 23, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Rod-shaped bismuth oxyiodide as a novel anode material for sodium-ion batteries
Jiaju Lu1,2, Weiya Tian1,2, Xiaoling Wang1,2
1National Engineering Research Center of Vacuum Metallurgy, Kunming, China. 270905839@qq.com.
None:
Herein, rod-like bismuth iodide oxide (Bi5O7I) is reported as a negative electrode material for sodium-ion batteries, and its sodium storage performance and mechanism are systematically investigated. The Bi5O7I electrode exhibits high-rate performance (220.5 mAh g-1 at 10 A g-1) and a long cycle life (292.6 mAh g-1 at 5 A g-1 over 3000 cycles). In situ XRD results reveal that the sodium storage mechanism of the Bi5O7I electrode involves the coupling of conversion and alloying reactions.

