@article{Hao2023, 
author = {Zhimeng Hao and Geng Li and Yong Lu and Yichao Cai and Gaojing Yang and Jun Chen},
title = {Anion-derived solid electrolyte interphase realized in usual-concentration electrolyte for Li metal batteries},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {11},
pages = {12647-12654},
keywords = {anion-derived solid electrolyte interphase, donor number, solvating power, electrolyte, lithium metal batteries},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5937-y},
doi = {10.1007/s12274-023-5937-y},
abstract = {Constructing anion-derived solid electrolyte interphase (SEI) by recruiting anions into the solvation sheath of Li+ is extremely conducive to restrain the dendrite growth of Li metal anode. However, the presence of anions in the solvation sheath of Li+ is severely hindered by the solvents with strong coordinating ability in conventional electrolyte. Herein, we boost the content of anions in the primary solvation sheath of Li+ by employing a solvent with low donor number, 2-methyltetrahydrofuran, inducing an anion-derived SEI. As a result, the Li||Cu cells show a high average Coulombic efficiency (> 99%) over 500 cycles and the Li||LiFePO4 cells under a low negative/positive capacity ratio of 2:1 exhibit an impressive capacity retention of 90% after 100 cycles. This work provides insights on constructing stable anion-derived SEI and offers guidance in designing electrolytes for stable Li metal batteries.}
}