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Title: Effect of nanopatterning on mechanical properties of Lithium anode

One of the challenges in developing Lithium anodes for Lithium ion batteries (LIB) is controlling the formation of Li dendrites during cycling of the battery. Nanostructuring and nanopatterning of electrodes shows a promising way to suppress the growth of Li dendrites. However, in order to control this behavior, a fundamental understanding of the effect of nanopatterning on the electromechanical properties of Li metal is necessary. In this paper, we have investigated the mechanical and wear properties of Li metal using Atomic Force Microscopy (AFM) in an airtight cell. By using different load regimes, we determined the mechanical properties of Li metal. Here, we show that as a result of nanopatterning, Li metal surface underwent work hardening due to residual compressive stress. The presence of such stresses can help to improve cycle lifetime of LIBs with Li anodes and obtain very high energy densities.
 [1] ;  [2] ; ORCiD logo [3] ;  [4] ; ORCiD logo [5] ; ORCiD logo [6] ; ORCiD logo [7]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering
  2. Daegu Gyeongbuk Inst. of Science and Technology (DGIST), Daegu (Korea). Dept. of Energy Science and Engineering
  3. Hanyang Univ., Ansan (Korea, Republic of). Dept. of Materials Science and Chemical Engineering
  4. ICT Materials and Components Research Lab., ETRI (Korea)
  5. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  7. Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of). Dept. of Materials Science and Engineering
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
Korea Institute of Energy Technology Evaluation and Planning (KETEP); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
25 ENERGY STORAGE; Li anode; Lithium ion batteries; Nanopatterning; mechanical properties
OSTI Identifier: