Randomized trial investigates the cycling stability of various silicon-based anodes in lithium batteries, suggesting new pathways for enhanced performance.
Key Points
This research aims to evaluate the performance of different silicon-based anodes in all-solid-state lithium batteries.
Three anode materials were systematically evaluated: pure nano-silicon, ball-milled silicon/carbon composite, and chemical vapor deposition silicon/carbon composite.
Electrochemical performance was analyzed via initial reversible capacities and cycling stability over 100 cycles.
X-ray diffraction, Raman spectroscopy, and impedance spectroscopy were utilized for characterizing materials and assessing electrochemical performance.
Pure Si had an initial reversible capacity of 2810.4 mAh g − 1 with a Coulombic efficiency of 65.97%.
BM Si/C stabilized at approximately 900 mAh g − 1 after 100 cycles, showing an improved charge transfer due to its conductive network.
CVD Si@C exhibited superior long-term cycling stability despite a higher charge transfer resistance.