铁电性
电场
极化(电化学)
材料科学
动能
离子
六方晶系
动力学
化学物理
基质(水族馆)
凝聚态物理
结晶学
光电子学
化学
电介质
物理化学
地质学
物理
海洋学
有机化学
量子力学
作者
Yanpeng Guo,Renyan Wang,Can Cui,Rundi Xiong,Yaqing Wei,Tianyou Zhai,Huiqiao Li
出处
期刊:Nano Letters
[American Chemical Society]
日期:2020-09-03
卷期号:20 (10): 7680-7687
被引量:26
标识
DOI:10.1021/acs.nanolett.0c03206
摘要
Manipulating the Li plating behavior remains a challenging task toward Li-based high-energy batteries. Generally, the Li plating process is kinetically controlled by ion transport, concentration gradient, local electric field, etc. A myriad of strategies have been developed for homogenizing the kinetics; however, such kinetics-controlled Li plating nature is barely changed. Herein, a ferroelectric substrate comprised of homogeneously distributed BaTiO3 was deployed and the Li plating behavior was transferred from a kinetic-controlled to a thermodynamic-preferred mode via ferroelectric effect. Such Li deposits with uniform hexagonal and cubic shapes are highly in accord with the thermodynamic principle where the body-centered cubic Li is apt to expose more (110) facets as possible to maximally minimize its surface energy. The mechanism was later confirmed due to the spontaneous polarization of BTO particles trigged by an applied electric field. The instantly generated reverse polarized field and charged ends not only neutralized the electric field but also leveled the ion distribution at the interface.
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