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Title: High-Throughput Exploration of Lithium-Alloy Protection Layers for High-Performance Lithium-Metal Batteries

Journal Article · · ACS Applied Energy Materials
ORCiD logo [1];  [1];  [1];  [1];  [1];  [2]; ORCiD logo [2];  [3];  [3];  [4];  [5];  [5];  [6]; ORCiD logo [7]; ORCiD logo [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. NICE America Research Inc., Mountain View, CA (United States)
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  5. Univ. of Utah, Salt Lake City, UT (United States). Dept. of Physics and Astronomy
  6. Hitachi-Technologies America Inc., Clarksburg, MD (United States)
  7. NICE, Beijing (China)

To realize high specific capacity Li-metal batteries, a protection layer for the Li-metal anode is needed. We are carrying out combinatorial screening of Li-alloy thin films as the protection layer which can undergo significant lithiation with minimum change in volume and crystal structure. In this paper, we have fabricated lithium-free binary alloy thin film composition spreads of Co1–xSnx on Cu layers on Si substrates. The crystallinity of the thin films was tuned by varying the deposition temperature followed by electrochemical lithiation to form Li-alloy ternary thin films. Synchrotron diffraction is used as the main tool to investigate the crystallinity of the films before and after lithiation. Co3Sn2 alloy thin films are found to exhibit significant lithium uptake capacity while maintaining its structural integrity, and are thus a good candidate of the Li-metal protection layer.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE; National Institute for Standards and Technology (NIST); NICE America Research Inc.
Grant/Contract Number:
AC02-76SF00515; 70NANB18H153; ONR-N00014-13-1-0635; 70NANB17H301
OSTI ID:
1633863
Journal Information:
ACS Applied Energy Materials, Vol. 3, Issue 3; ISSN 2574-0962
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

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