Cited 12 time in webofscience Cited 13 time in scopus

Lithium Dendrite Suppression with a Silica Nanoparticle-Dispersed Colloidal Electrolyte

Title
Lithium Dendrite Suppression with a Silica Nanoparticle-Dispersed Colloidal Electrolyte
Authors
Lee, JinhongLim, Hyung-SeokCao, XiaRen, XiaodiKwak, Won-JinRodriguez-Perez, Ismael A.Zhang, Ji-GuangLee, HongkyungKim, Hee-Tak
DGIST Authors
Lee, Jinhong; Lim, Hyung-Seok; Cao, Xia; Ren, Xiaodi; Kwak, Won-Jin; Rodriguez-Perez, Ismael A.; Zhang, Ji-Guang; Lee, Hongkyung; Kim, Hee-Tak
Issue Date
2020-08
Citation
ACS Applied Materials and Interfaces, 12(33), 37188-37196
Type
Article
Article Type
Article
Author Keywords
electrodepositionLi dendriteLi metal batteriesnanoparticle-dispersed colloidal electrolytesilica nanoparticle
Keywords
HIGH-ENERGYHYBRID ELECTROLYTESSALT-SOLUTIONSMETALGROWTHPERFORMANCEANODESCONDUCTIVITYMECHANISMSCHALLENGES
ISSN
1944-8244
Abstract
Developing a safe and long-lasting lithium (Li) metal battery is crucial for high-energy applications. However, its poor cycling stability due to Li dendrite formation and excessive Li pulverization is the major hurdle for its practical applications. Here, we present a silica (SiO2) nanoparticle-dispersed colloidal electrolyte (NDCE) and its design principle for suppressing Li dendrite formation. SiO2 nanoclusters in the NDCE play roles in enhancing the Li+ transference number and increasing the Li+ diffusivity in the vicinity of the Li-plating substrate. The NDCE enables less-dendritic Li plating by manipulating the nucleation-growth mode and extending Sand's time. Moreover, SiO2 can interplay with the electrolyte components at the Li-metal surface, enriching fluorinated compounds in the solid electrolyte interface layer. The initial control of the Li plating morphology and SEI structure by the NDCE leads to a more uniform and denser Li deposition upon subsequent cycling, resulting in threefold enhancement of the cycle life. The efficacy of the NDCEs has been further demonstrated by the practical battery design, featuring a commercial-level cathode and thin Li-metal (40 μm) anode. Copyright © 2020 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/12589
DOI
10.1021/acsami.0c09871
Publisher
American Chemical Society
Related Researcher
  • Author Lee, Hongkyung Electrochemical Materials & Devices Laboratory
  • Research Interests Batteries; Electrochemistry; Interfaces
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringElectrochemical Materials & Devices Laboratory1. Journal Articles


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