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Solid Electrolyte Interphase on Lithium Metal Anodes.

Zhichuan Shen1, Junqiao Huang1, Yu Xie1

  • 1Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, 510006, Guangzhou, China.

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|January 31, 2024
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Summary
This summary is machine-generated.

This review details the solid electrolyte interphase (SEI) film in lithium metal batteries (LMBs). It covers SEI formation, properties, and construction strategies for improved battery performance.

Keywords:
cycling performancelithium metal anodelithium metal batteriesnext generation batteriessolid electrolyte interphase

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Lithium metal batteries (LMBs) are key for next-generation high-energy density storage.
  • The solid electrolyte interphase (SEI) film on the lithium metal anode is critical for LMB performance.
  • Understanding SEI properties is vital for advancing LMB technology.

Purpose of the Study:

  • To comprehensively review SEI film formation in LMBs.
  • To elucidate the critical properties of the SEI film, including electronic and ionic conductivity, and mechanical performance.
  • To discuss strategies for constructing improved SEI films and provide future research directions.

Main Methods:

  • Literature review of SEI formation mechanisms.
  • Analysis of SEI properties (electronic conductivity, ionic conductivity, mechanical performance).
  • Discussion of SEI construction approaches: electrolyte regulation and artificial coating design.

Main Results:

  • Detailed explanation of the SEI film formation process.
  • Elucidation of key SEI properties influencing battery performance.
  • Overview of diverse methods for SEI construction.

Conclusions:

  • The SEI film is crucial for lithium deposition and cycling stability in LMBs.
  • Effective SEI construction through electrolyte modification and artificial coatings can enhance battery performance.
  • Further research into SEI engineering is recommended for advancing LMB technology.