Strong texturing of lithium metal in batteries

Proceedings of the National Academy of Sciences of the United States of America
Feifei ShiYi Cui

Abstract

Lithium, with its high theoretical specific capacity and lowest electrochemical potential, has been recognized as the ultimate negative electrode material for next-generation lithium-based high-energy-density batteries. However, a key challenge that has yet to be overcome is the inferior reversibility of Li plating and stripping, typically thought to be related to the uncontrollable morphology evolution of the Li anode during cycling. Here we show that Li-metal texturing (preferential crystallographic orientation) occurs during electrochemical deposition, which governs the morphological change of the Li anode. X-ray diffraction pole-figure analysis demonstrates that the texture of Li deposits is primarily dependent on the type of additive or cross-over molecule from the cathode side. With adsorbed additives, like LiNO3 and polysulfide, the lithium deposits are strongly textured, with Li (110) planes parallel to the substrate, and thus exhibit uniform, rounded morphology. A growth diagram of lithium deposits is given to connect various texture and morphology scenarios for different battery electrolytes. This understanding of lithium electrocrystallization from the crystallographic point of view provides significant insight for f...Continue Reading

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Citations

Aug 8, 2018·Proceedings of the National Academy of Sciences of the United States of America·Feifei ShiYi Cui
Jul 31, 2019·Chemical Communications : Chem Comm·Yanpeng GuoHuiqiao Li
Oct 11, 2019·Chemical Communications : Chem Comm·Huicong YangFeng Li
Jan 1, 2021·ACS Applied Materials & Interfaces·Yikang YuJian Xie
Jun 2, 2020·Nano Letters·Sanjuna StalinLynden A Archer
Dec 15, 2020·Journal of the American Chemical Society·Zhuojun HuangZhenan Bao
Aug 29, 2018·Journal of the American Chemical Society·Jeffrey LopezZhenan Bao
Nov 24, 2020·Journal of the American Chemical Society·Anna B GunnarsdóttirClare P Grey
Dec 8, 2020·The Journal of Physical Chemistry Letters·Alexey A RulevDaniil M Itkis
Jan 11, 2020·ACS Applied Materials & Interfaces·Yun QiaoYang Liu
Sep 2, 2021·IScience·Carlos M CostaSenentxu Lanceros-Méndez
Oct 17, 2021·Nature Communications·Qing ZhaoLynden A Archer

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