An Artificial Solid Electrolyte Interphase Layer for Stable Lithium Metal Anodes

Nian-Wu Li; Ya-Xia Yin; Chun-Peng Yang; Yu-Guo Guo

doi:10.1002/adma.201504526

An Artificial Solid Electrolyte Interphase Layer for Stable Lithium Metal Anodes

Adv Mater. 2016 Mar 2;28(9):1853-8. doi: 10.1002/adma.201504526. Epub 2015 Dec 23.

Authors

Nian-Wu Li¹, Ya-Xia Yin¹, Chun-Peng Yang^{1

2}, Yu-Guo Guo^{1

2}

Affiliations

¹ CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.

PMID: 26698171
DOI: 10.1002/adma.201504526

Abstract

A Li3PO4 solid electrolyte interphase (SEI) layer is demonstrated to be stable in the organic electrolyte, even during the Li deposition/dissolution process. Thus, the Li-conducting Li3PO4 SEI layer with a high Young's modulus can effectively reduce side reactions between Li metal and the electrolyte and can restrain Li dendrite growth in lithium-metal batteries during cycling.

Keywords: electrochemistry; lithium anodes; lithium metal batteries; nanotechnology; surface coatings.