Re-evaluating the nano-sized inorganic protective layer on Cu current collector for anode free lithium metal batteries

Shuo Zhang, Haitao Liao, Zhi Qun Liu, Chong Yan*, Jia Qi Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Anode free lithium metal batteries (AF-LMBs) have conspicuous advantages both in energy density and the compatibility of battery manufacturing process. However, the limited cycle life of AF-LMBs is a crucial factor hindering its practical application. Fluorinated or nitride artificial inorganic solid electrolyte interphase (SEI) has been found as an effective method to prolong the lifespan of AF-LMBs. Herein, by investigating the impact of nano-sized inorganic gradient layers (LiF or Li3N) on initial Li deposition behavior, we notice that the Li+ diffusion barrier and the deposition morphology are highly depended on the thickness of inorganic layers. Thicker protective layers cause larger overpotential as well as more aggregated Li+ distribution. This study reveals that the ideal SEI should be synthesized thin and uniformly enough and uncontrollable artificial SEI can cause damage to the lifespan of AF-LMBs.

Original languageEnglish
Article number109284
JournalChinese Chemical Letters
Volume35
Issue number7
DOIs
Publication statusPublished - Jul 2024

Keywords

  • Anode free lithium metal battery
  • Li deposition behavior
  • Lithium fluoride
  • Nano-sized protective layer
  • Solid electrolyte interphase

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Zhang, S., Liao, H., Liu, Z. Q., Yan, C., & Huang, J. Q. (2024). Re-evaluating the nano-sized inorganic protective layer on Cu current collector for anode free lithium metal batteries. Chinese Chemical Letters, 35(7), Article 109284. https://doi.org/10.1016/j.cclet.2023.109284