摘要
Lithium oxalyldifluoroborate (LiODFB) has been investigated as an organic electrolyte additive to improve the cycling performance of Li-S batteries. Cell test results demonstrate that an appropriate amount of LiODFB added into the electrolyte leads to a high Coulombic efficiency. Analyses by energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and the density functional theory showed that LiODFB promotes the formation of a LiF-rich passivation layer on the lithium metal surface, which not only blocks the polysulfide shuttle, but also stabilizes the lithium surface.
源语言 | 英语 |
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页(从-至) | 15542-15549 |
页数 | 8 |
期刊 | ACS applied materials & interfaces |
卷 | 6 |
期 | 17 |
DOI | |
出版状态 | 已出版 - 10 9月 2014 |
指纹
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Wu, F., Qian, J., Chen, R., Lu, J., Li, L., Wu, H., Chen, J., Zhao, T., Ye, Y., & Amine, K. (2014). An effective approach to protect lithium anode and improve cycle performance for Li-S batteries. ACS applied materials & interfaces, 6(17), 15542-15549. https://doi.org/10.1021/am504345s