@article{Wei2026, 
author = {Ran Wei and Luyao Wang and Jiameng Yu and Yining Zhang and Xiaoyan Wu and Yu Chen and Tianyi Gao and Xinshui Zhang and Yi Yu and Li Wang and Xiangming He and Wei Liu},
title = {Molten salt-assisted SiOx prelithiation for high-performance quasi-solid-state batteries},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {2},
pages = {94908177},
keywords = {solid state battery, SiOx anodes, prelithiation, molten salts, full cells},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94908177},
doi = {10.26599/NR.2025.94908177},
abstract = {Silicon oxide (SiOx) anodes have emerged as a promising substitute for graphite anodes owing to their high specific capacity and cost-effectiveness. However, they face challenges including significant volume expansion-induced electrode cracking and unsatisfactory initial Coulombic efficiency. Herein, we use a prelithiation strategy to address these challenges for quasi-solid-state batteries using a garnet-type solid electrolyte. Using a contact-based prelithiation configuration, full prelithiation of SiOx anodes were achieved through spontaneous lithium-ion intercalation assisted by molten salts. The garnet-type solid electrolyte based full cells are assembled with fully prelithiated SiOx anodes and LiFePO4 cathode using molten salts as interface layer. The quasi-solid-state full cells with high initial coulombic efficiency maintain exceptional cycling stability with over 80% capacity retention after 300 cycles. The molten salt modulates the solid electrolyte interphase composition for SiOx anodes and effectively suppressing SiOx particle fracture during cycling. This work offers a practical route toward high-energy-density lithium batteries for next-generation energy storage.}
}