Cited 8 time in webofscience Cited 8 time in scopus

Study on dead-Li suppression mechanism of Li-hosting vapor-grown-carbon-nanofiber-based protective layer for Li metal anodes

Title
Study on dead-Li suppression mechanism of Li-hosting vapor-grown-carbon-nanofiber-based protective layer for Li metal anodes
Authors
Jo, HearinSong, DanohJeong, Yong-CheolLee, Yong MinRyou, Myung-Hyun
DGIST Authors
Lee, Yong Min
Issue Date
2019-01
Citation
Journal of Power Sources, 409, 132-138
Type
Article
Article Type
Article
Author Keywords
Vapor grown carbon nanofiberDead Li suppressionDendrite suppressionLi metal electrode
Keywords
SOLID-ELECTROLYTE INTERPHASEFREE LITHIUM DEPOSITIONPERFORMANCEPOLYSULFIDEINTERLAYERLIQUIDMATRIX
ISSN
0378-7753
Abstract
Li metal exhibits considerable morphological changes during its plating/stripping, and in particular, the formation of needle-like Li or “dead Li” during plating/stripping has limited the widespread the use of Li metal as a secondary battery anode material. In recent attempts to suppress dead-Li formation during Li plating/stripping, the method of hosting Li metal in a stable structure in plating process has attracted considerable attention. Although many types of conductive Li host materials have been introduced to improve the electrochemical properties of Li metal anodes, the mechanism by which conductive Li hosting materials inhibit dead Li in each system has not been precisely investigated. In this study, we introduce a vapor-grown carbon-nanofiber-based protective layer on the Li metal surface and investigate the effects of the protective layer on the formation of dead Li. To this end, we investigate the adhesion properties of the plated Li and the morphological changes of the Li metal anodes with the protective layer during plating. Furthermore, the effects of the protective layer on the electrochemical properties of Li metal anodes are investigated. The protective layer firmly holds the plated Li over entire area, which results in reduced amounts of dead Li during repeated cycling. © 2018 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/9368
DOI
10.1016/j.jpowsour.2018.09.059
Publisher
Elsevier BV
Related Researcher
  • Author Lee, Yong Min Battery Materials & Systems LAB
  • Research Interests Battery; Electrode; Electrolyte; Separator; Simulation
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringBattery Materials & Systems LAB1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE