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Lithium batteries: Improving solid-electrolyte interphases via underpotential solvent electropolymerization

Kasmaee, Laleh Majari and Aryanfar, Asghar and Chikneyan, Zarui and Hoffmann, Michael R. and Colussi, Agustín J. (2016) Lithium batteries: Improving solid-electrolyte interphases via underpotential solvent electropolymerization. Chemical Physics Letters, 661 . pp. 65-69. ISSN 0009-2614. PMCID PMC5063536.

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Understanding the mechanism of formation of solid-electrolyte interphases (SEI) is key to the prospects of lithium metal batteries (LMB). Here, we investigate via cyclic voltammetry, impedance spectroscopy and chronoamperometry the role of kinetics in controlling the properties of the SEI generated from the reduction of propylene carbonate (PC, a typical solvent in LMB). Our observations are consistent with the operation of a radical chain PC electropolymerization into polymer units whose complexity increases at lower initiation rates. As proof-of-concept, we show that slow initiation rates via one-electron PC reduction at underpotentials consistently yields compact, electronically insulating, Li^+-conducting, PC-impermeable SEI films.

Item Type:Article
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URLURL TypeDescription CentralArticle
Aryanfar, Asghar0000-0002-8890-077X
Hoffmann, Michael R.0000-0001-6495-1946
Colussi, Agustín J.0000-0002-3400-4101
Additional Information:© 2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( Received 23 June 2016; In final form 19 August 2016; Available online 22 August 2016. We acknowledge financial support from the Bill and Melinda Gates Foundation, United States (BMGF Grant OPP1111246 and OPP109500C). The authors declare no competing financial interests.
Funding AgencyGrant Number
Bill and Melinda Gates FoundationOPP1111246
Bill and Melinda Gates FoundationOPP109500C
Subject Keywords:Solid electrolyte interphase; Electropolymerization; Lithium metal batteries; Dendrite inhibition; Organic carbonates
PubMed Central ID:PMC5063536
Record Number:CaltechAUTHORS:20160907-091247056
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Official Citation:Laleh Majari Kasmaee, Asghar Aryanfar, Zarui Chikneyan, Michael R. Hoffmann, Agustín J. Colussi, Lithium batteries: Improving solid-electrolyte interphases via underpotential solvent electropolymerization, Chemical Physics Letters, Volume 661, 16 September 2016, Pages 65-69, ISSN 0009-2614, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70188
Deposited By: Tony Diaz
Deposited On:07 Sep 2016 16:43
Last Modified:03 Mar 2020 13:01

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