@article{Choi2024, 
author = {Minhong Choi and Eunhan Lee and Jaekyung Sung and Namhyung Kim and Minseong Ko},
title = {Comparison of commercial silicon-based anode materials for the design of a high-energy lithium-ion battery},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {6},
pages = {5270-5277},
keywords = {silicon-based anode, high-energy, comparison, lithium ion battery, blended electrode},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6512-x},
doi = {10.1007/s12274-024-6512-x},
abstract = {Silicon (Si) is considered a potential alternative anode for next-generation Li-ion batteries owing to its high theoretical capacity and abundance. However, the commercial use of Si anodes is hindered by their large volume expansion (~ 300%). Numerous efforts have been made to address this issue. Among these efforts, Si-graphite co-utilization has attracted attention as a reasonable alternative for high-energy anodes. A comparative study of representative commercial Si-based materials, such as Si nanoparticles, Si suboxides, and Si−Graphite composites (SiGC), was conducted to characterize their overall performance in high-energy lithium-ion battery (LIB) design by incorporating conventional graphite. Nano-Si was found to exhibit poor electrochemical performance, with severe volume expansion during cycling. Si suboxide provided excellent cycling stability in a full-cell evaluation with stable volume variation after 50 cycles, but had a large irreversible capacity and remarkable volume expansion during the first cycle. SiGC displayed a good initial Coulombic efficiency and the lowest volume change in the first cycle owing to the uniformly distributed nano-Si layer on graphite; however, its long-term cycling stability was relatively poor. To complement each disadvantage of Si suboxide and SiGC, a new combination of these Si-based anodes was suggested and a reasonable improvement in overall battery performance was successfully achieved.}
}