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Title: Optimization of the cerium-hydrogen redox flow cell

Abstract

The Ce—H2 redox flow cell is optimized using commercially-available cell materials. Cell performance is found to be sensitive to the upper charge cutoff voltage, membrane boiling pretreatment, methanesulfonic-acid concentration, (+) electrode surface area and flow pattern, and operating temperature. Performance is relatively insensitive to membrane thickness, Cerium concentration, and all features of the (−) electrode including hydrogen flow. Cell performance appears to be limited by mass transport and kinetics in the cerium (+) electrode. Maximum discharge power of 895 mW cm−2 was observed at 60° C.; an energy efficiency of 90% was achieved at 50° C. The Ce—H2 cell is promising for energy storage assuming one can optimize Ce reaction kinetics and electrolyte.

Inventors:
;
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576292
Patent Number(s):
10,424,804
Application Number:
15/582,225
Assignee:
The Regents of the University of California (Oakland, CA)
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017 Apr 28
Country of Publication:
United States
Language:
English

Citation Formats

Tucker, Michael C., and Weber, Adam Z. Optimization of the cerium-hydrogen redox flow cell. United States: N. p., 2019. Web.
Tucker, Michael C., & Weber, Adam Z. Optimization of the cerium-hydrogen redox flow cell. United States.
Tucker, Michael C., and Weber, Adam Z. Tue . "Optimization of the cerium-hydrogen redox flow cell". United States. https://www.osti.gov/servlets/purl/1576292.
@article{osti_1576292,
title = {Optimization of the cerium-hydrogen redox flow cell},
author = {Tucker, Michael C. and Weber, Adam Z.},
abstractNote = {The Ce—H2 redox flow cell is optimized using commercially-available cell materials. Cell performance is found to be sensitive to the upper charge cutoff voltage, membrane boiling pretreatment, methanesulfonic-acid concentration, (+) electrode surface area and flow pattern, and operating temperature. Performance is relatively insensitive to membrane thickness, Cerium concentration, and all features of the (−) electrode including hydrogen flow. Cell performance appears to be limited by mass transport and kinetics in the cerium (+) electrode. Maximum discharge power of 895 mW cm−2 was observed at 60° C.; an energy efficiency of 90% was achieved at 50° C. The Ce—H2 cell is promising for energy storage assuming one can optimize Ce reaction kinetics and electrolyte.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

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