DataVXACS Applied Energy MaterialsPaper
journal article·2020-03-23Open access

Solubility-Dependent Protective Effects of Binary Alloys for Lithium Anode

Yan Xu, Shuyang Zhao, Guangmin Zhou, Wei Chen, Fei Zhou, Ze Rong, Yang Wu, Jia Li, Jinghua Guo, Yuegang Zhang

ACS Applied Energy Materials· Volume 3· Issue 3
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Source abstract

Abstract

Recently, alloys have been widely utilized as protection layers for homogenized Li growth. However, the protective mechanisms for different alloys are not clearly understood. Herein, guided by the binary phase diagrams, Mg, Au, Zn, Al, Fe, and Cu protective layers have been selected for study of their protective abilities and mechanisms. The selected metals can be classified into three categories according to the nature of their associated alloy protective layers: (1) metals with high solubility in Li while not forming any intermediate line compounds, e.g., Mg, which is good for fast Li stripping; (2) metals with limited solid solubility but forming stable line compounds with Li upon the lithiation, e.g., Au, Zn, and Al, where the formed stable line compounds LixAu, LixZn, and LixAl will hamper Li kinetics; (3) metals with negligible mutual solubility and no line compound formation with Li, e.g., Fe and Cu, which block the Li stripping path and therefore result in the highest polarization voltage.
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Research context

Energy storageMetals & alloys

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China

Laboratory for Computation Materials Engineering, Division of Energy and Environment, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China

Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States

Monta Vista Energy Technologies Corporation, Hefei 230601, China

Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Department of Physics, Tsinghua University, Beijing 100084, China

Funding

Ministry of Science and Technology of the People's Republic of China · Queensland Government · U.S. Department of Energy · National Natural Science Foundation of China · Chinese Academy of Sciences · Guangdong Province · Basic Research Project of Shenzhen

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