Electrostatic Interaction Tailored Anion-Rich Solvation Sheath Stabilizing High-Voltage Lithium Metal Batteries

Junru Wu, Ziyao Gao, Yao Wang, Xu Yang, Qi Liu, Dong Zhou, Xianshu Wang*, Feiyu Kang, Baohua Li*

*Corresponding author for this work

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Abstract

The effect of electrostatic interaction on regulating an anion-rich solvation in electrolyte is firstly proposed.The moderate electrostatic interaction between anion and solvent promotes anion-rich solvation sheath, inducing a stable electrolyte|electrode interface with fast Li+ transport kinetics.The outstanding electrochemical performance of 50 μm-thin Li||high-loading LiCoO2 batteries is achieved at high voltage of 4.5 V (even up to 4.6 V), lean electrolyte of 15 μL, and wide temperature range of − 20 to 60 °C.

Original languageEnglish
Article number147
JournalNano-Micro Letters
Volume14
Issue number1
DOIs
Publication statusPublished - Dec 2022
Externally publishedYes

Keywords

  • Anion-rich solvation sheath
  • Electrostatic interaction
  • High voltage
  • Lithium metal batteries
  • Wide temperature range

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Wu, J., Gao, Z., Wang, Y., Yang, X., Liu, Q., Zhou, D., Wang, X., Kang, F., & Li, B. (2022). Electrostatic Interaction Tailored Anion-Rich Solvation Sheath Stabilizing High-Voltage Lithium Metal Batteries. Nano-Micro Letters, 14(1), Article 147. https://doi.org/10.1007/s40820-022-00896-4