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Effect of nanopatterning on mechanical properties of Lithium anode

Title
Effect of nanopatterning on mechanical properties of Lithium anode
Authors
Campbell, ColinLee, Yong MinCho, Kuk YoungLee, Young-GiLee, ByeongduPhatak, CharudattaHong, Seungbum
DGIST Authors
Lee, Yong Min
Issue Date
2018-02
Citation
Scientific Reports, 8(1)
Type
Article
Article Type
Article
Keywords
Nanopatterningmechanical propertiesLi anodeLithium ion batteries
ISSN
2045-2322
Abstract
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 electro-mechanical 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. 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. Keywords: Nanopatterning, mechanical properties, Li anode, Lithium ion batteries © 2018 The Author(s).
URI
http://hdl.handle.net/20.500.11750/5919
DOI
10.1038/s41598-018-20773-8
Publisher
Nature Publishing Group
Related Researcher
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringBattery Materials & Systems LAB1. Journal Articles


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