Electrochemical devices utilizing flow-through porous media

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INREP presentation
Energy & Environ. Sci., 5, 2012 (ME Suss et al.)
Assistant Professor Matthew Suss
Technion, Faculty of Mechanical Engineering
Outline
Electrochemical Systems
Supercapcitors
Capacitive
deionization
Flow batteries
Electroosmotic
pumps
Hierarchical supercapacitor electrodes
How to interpret impedance spectra of a
hierarchical electrode?
1. ME Suss et al. J Power Sources, 2013
2. ME Suss et al., Env. Sci. Tech, 2014
In situ measurements of ion concentration
in a supercapacitor cell
Supercapacitors for water desalination (CDI)
Hierarchical carbon aerogel electrodes
Stopped-flow experiments demonstrate
up to 70 mM concentration reduction
ME Suss et al., Energy. Environ. Sci., 2012
Built a prototype device
High salt removal rate
Membraneless flow batteries
M.E. Suss et al. Battery with Heterogeneous Flow-Through
Porous Electrodes, U.S. Application No.: 14/504539
Novel battery cell architecture to enable a
cyclable & high power membraneless cell
ME Suss et al. Submitted, 2014
Transport modeling shows that low
crossover can be attained!
Membraneless flow batteries
Set 4 performance records for the field of
membraneless electrochemical energy systems
-
Highest power density (0.925 W/cm2)
Highest current density (3 A/cm2)
Highest attained cycles (>30)
Highest round-trip energy efficiency (87%)
ME Suss et al. Submitted, 2014
Technion Electrochemical Energy and
Water Laboratory
Fundamental studies
Novel, world-class devices
(electrochemistry in porous media)
Energy/Water
Transport
Models
Rapid
prototyping
Porous materials
development
M.E. Suss et al. submitted, 2014
M.E. Suss, et al. Enr. Env. Sci 2012.
Energy
Novel
experimental
techniques
M.E. Suss et al. submitted, 2014
M.E. Suss, et al. Env. Sci. Tech 2014.
M.E. Suss, et al. J Power Sources 2013.
M.E. Suss, et al. Sens. & Act. B, 2011.
Technion Electrochemical Energy and
Water Laboratory
Currently hiring Postdocs and a lab manager
Experience in theory/experiments of electrochemical systems,
or porous electrode fabrication a big plus!
Email: mesuss@technion.ac.il
Office: New Mechanical Engineering building
(Dan & Betty Kahn), room 415
Acknowledgements
• Prof. Juan Santiago (Stanford)
• Dr. Michael Stadermann (LLNL)
• Prof. Martin Bazant, Prof. Cullen Buie (MIT)
• The Lawrence Scholars Program
• National Science & Engineering Research Council of Canada (NSERC)
• Fonds de recherche du Québec – Nature et technologies (FQRNT)
• State of California Department of Water Resources
• National Science Foundation (NSF)
Future acknowledgments
• Israel National Research Center (INREP)
• Grand Technion Energy Program
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