Premium
Enabling Stable Lithium Metal Anode through Electrochemical Kinetics Manipulation
Author(s) -
Han Yehu,
Jie Yulin,
Huang Fanyang,
Chen Yawei,
Lei Zhanwu,
Zhang Genqiang,
Ren Xiaodi,
Qin Lianjie,
Cao Ruiguo,
Jiao Shuhong
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201904629
Subject(s) - anode , materials science , faraday efficiency , dendrite (mathematics) , electrochemistry , electrolyte , metal , lithium (medication) , chemical engineering , kinetics , plating (geology) , lithium metal , nanotechnology , metallurgy , electrode , chemistry , medicine , geometry , mathematics , physics , engineering , quantum mechanics , geophysics , geology , endocrinology
The surface morphology of Li metal anode significantly dictates the stability and safety of Li metal batteries. The key parameters for morphological control and causes for dendritic growth of Li anode are still not clear. Although the plating kinetics is generally believed to be associated with Li growth habits, the detailed models are still not well defined. In this work, the temperature effect on the stability and efficiency of Li anode is systematically investigated in a variety of electrolyte composition for Li metal batteries. A dendrite‐free growth mechanism is observed, and a high Coulombic efficiency up to ≈99.4% in Li||Cu cells is achieved by tuning the deposition behaviors at elevated temperatures. The results provide insights into the Li dendrite growth mechanism and general principle for developing stable Li anode.