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Updated: Dec 2, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Highly conductive VC embedded in carbon matrix as effective trapper and catalyst for Li-S batteries
Benben Wei1, Chaoqun Shang, Xin Wang
1National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China. chaoqun.shang@ecs-scnu.org.
Abstract:
Vanadium carbide embedded in a nitrogen-doped carbon matrix (VC@NCM) is synthesized as a 3D freestanding sulfur host. Owing to the high electrical conductivity (1.6 × 104 S cm-1) of VC and strong chemisorption and catalytic effect on sulfur species, Li-S batteries with VC@NCM deliver enhanced redox kinetics with ultralow capacity decay of 0.01% per cycle after 1000 cycles at 1C. This work identifies the effect of strong chemisorption and high electrical conductivity on high S utilization and cycle stability in Li-S batteries.
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