Enhancing the Performance of Viscous Electrode-Based Flow Batteries Using Lubricant-Impregnated Surfaces
Name
Enhancing the Performance of Viscous Electrode-Based Flow Batteries Using Lubricant-Impregnated Surfaces.pdf
Description
Accepted version
Size
3.88 MB
Format
Adobe PDF
Checksum (MD5)
53559c160e34ec0e1636c6f693b49458
Author(s)
Solomon, Brian Richmond
Chen, Xinwei
Rapoport, Leonid
Helal, Ahmed H.
McKinley, Gareth H
Chiang, Yet-Ming
Varanasi, Kripa
Date Issued
June 2018
Journal
ACS Applied Energy Materials
Publisher
American Chemical Society (ACS)
Citation
Solomon, Brian R. et al. "Enhancing the Performance of Viscous Electrode-Based Flow Batteries Using Lubricant-Impregnated Surfaces." ACS Applied Energy Materials 1, 8 (June 2018): 3614–3621 © 2018 American Chemical Society
Version
Author's final manuscript
Abstract
Redox flow batteries are a promising technology that can potentially meet the large-scale grid storage needs of renewable power sources. Today, most redox flow batteries are based on aqueous solutions with low cell voltages and low energy densities that lead to significant costs from hardware and balance-of-plant. Nonaqueous electrochemical couples offer higher cell voltages and higher energy densities and can reduce system-level costs but tend toward higher viscosities and can exhibit non-Newtonian rheology that increases the power required to drive flow. This work uses lubricant-impregnated surfaces (LIS) to promote flow in electrochemical systems and outlines their design based on interfacial thermodynamics and electrochemical stability. We demonstrate up to 86% mechanical power savings at low flow rates for LIS compared to conventional surfaces for a lithium polysulfide flow electrode in a half-cell flow battery configuration. The measured specific charge capacity of ∼800 mAh/(g·S) is a 4-fold increase over previous work.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/acsaem.8b00241
