Related Experiment Video
Updated: Jun 15, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Lithium salt-derived artificial near-surface reconfiguration to stabilize high-voltage LiCoO2
Jun-Ke Liu1,2, Guo-Dong Bai1, Zu-Wei Yin1
1College of Energy, Xiamen University, 361005, Xiamen, China. yinzuwei@xmu.edu.cn.
Abstract:
Pushing the limit of the charging cut-off voltage inevitably leads to the instability of bulk and interfacial structures. Herein, one-step dual-modified LiCoO2 (LCO) is achieved by thermodynamic decomposition of lithiuim salts on the surface, featuring F-doped bulk and LiF & LiBO coating layers. Notably, such artificial near-surface reconfiguration effectively suppresses Co dissolution, structural deconstruction and electrolyte side reactions during repeated lithiation/delithiation processes. As a result, the modified LCO delivers a high capacity retention of 81.4% after 150 cycles at 0.5C and 81.7% after 300 cycles at 2C in the voltage region of 3.0-4.6 V (vs. Li/Li+).
Related Concept Videos
Ionic Bonding and Electron Transfer
Trends in Lattice Energy: Ion Size and Charge
Weak Acid Solutions
Lattice Energies of Ionic Crystals

