Continuous electrochemical heat engines
Abstract
Given the large magnitude of energy in waste heat, its efficient conversion to electrical power offers a significant opportunity to lower greenhouse gas emissions. Furthermore, it has been difficult to optimize the performance of new direct energy conversion approaches because of the coupling between entropy change and thermal and electrical transport in continuously operating devices. With electrochemical cells driving flowing electrolytes in symmetric redox reactions at different temperatures, we demonstrate two continuous electrochemical heat engines that operate at 10–50 °C and at 500–900 °C, respectively. Simulations of kilowatt-scale systems using electrochemical cells stacked in series suggest efficiencies over 30% of the Carnot limit and areal power densities competitive with solid-state thermoelectrics at maximum power. Although entropy change, thermal transport and electrical transport are inherently coupled in solid-state thermoelectrics, they can be somewhat circumvented in electrochemical systems, thus offering new opportunities to engineer efficient energy conversion systems.
- Authors:
-
[3];
[4]
- Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Stanford Univ., Stanford, CA (United States)
- Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Precourt Institute for Energy, Stanford, CA (United States)
- Stanford Precourt Institute for Energy, Stanford, CA (United States); Stanford Univ., Stanford, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1490884
- Alternate Identifier(s):
- OSTI ID: 1461903
- Grant/Contract Number:
- AC02-76SF00515; DGE-1147470
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Energy & Environmental Science
- Additional Journal Information:
- Journal Volume: 11; Journal Issue: 10; Journal ID: ISSN 1754-5692
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 30 DIRECT ENERGY CONVERSION
Citation Formats
Poletayev, Andrey D., McKay, Ian S., Chueh, William C., and Majumdar, Arun. Continuous electrochemical heat engines. United States: N. p., 2018.
Web. doi:10.1039/c8ee01137k.
Poletayev, Andrey D., McKay, Ian S., Chueh, William C., & Majumdar, Arun. Continuous electrochemical heat engines. United States. https://doi.org/10.1039/c8ee01137k
Poletayev, Andrey D., McKay, Ian S., Chueh, William C., and Majumdar, Arun. Mon .
"Continuous electrochemical heat engines". United States. https://doi.org/10.1039/c8ee01137k. https://www.osti.gov/servlets/purl/1490884.
@article{osti_1490884,
title = {Continuous electrochemical heat engines},
author = {Poletayev, Andrey D. and McKay, Ian S. and Chueh, William C. and Majumdar, Arun},
abstractNote = {Given the large magnitude of energy in waste heat, its efficient conversion to electrical power offers a significant opportunity to lower greenhouse gas emissions. Furthermore, it has been difficult to optimize the performance of new direct energy conversion approaches because of the coupling between entropy change and thermal and electrical transport in continuously operating devices. With electrochemical cells driving flowing electrolytes in symmetric redox reactions at different temperatures, we demonstrate two continuous electrochemical heat engines that operate at 10–50 °C and at 500–900 °C, respectively. Simulations of kilowatt-scale systems using electrochemical cells stacked in series suggest efficiencies over 30% of the Carnot limit and areal power densities competitive with solid-state thermoelectrics at maximum power. Although entropy change, thermal transport and electrical transport are inherently coupled in solid-state thermoelectrics, they can be somewhat circumvented in electrochemical systems, thus offering new opportunities to engineer efficient energy conversion systems.},
doi = {10.1039/c8ee01137k},
journal = {Energy & Environmental Science},
number = 10,
volume = 11,
place = {United States},
year = {2018},
month = {7}
}
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Works referenced in this record:
Thermal pulse energy harvesting
journal, August 2013
- McKay, Ian Salmon; Wang, Evelyn N.
- Energy, Vol. 57
High-Temperature Materials
journal, January 1960
- Hehemann, R. F.; Mervin Ault, G.; Weir, J. R.
- Journal of The Electrochemical Society, Vol. 107, Issue 1
Solution Characterization of the Iron(II) Bis(1,4,7-Triazacyclononane) Spin-Equilibrium Reaction
journal, September 2001
- Turner, Jeffrey W.; Schultz, Franklin A.
- Inorganic Chemistry, Vol. 40, Issue 20
Nanostructured Thermoelectrics: Big Efficiency Gains from Small Features
journal, July 2010
- Vineis, Christopher J.; Shakouri, Ali; Majumdar, Arun
- Advanced Materials, Vol. 22, Issue 36, p. 3970-3980
Ionic thermoelectric supercapacitors
journal, January 2016
- Zhao, D.; Wang, H.; Khan, Z. U.
- Energy & Environmental Science, Vol. 9, Issue 4
Thermogalvanic conversion of heat to electricity
journal, January 1986
- Quickenden, T. I.; Vernon, C. F.
- Solar Energy, Vol. 36, Issue 1
Membrane-Free Battery for Harvesting Low-Grade Thermal Energy
journal, October 2014
- Yang, Yuan; Loomis, James; Ghasemi, Hadi
- Nano Letters, Vol. 14, Issue 11
Complex thermoelectric materials
journal, February 2008
- Snyder, G. Jeffrey; Toberer, Eric S.
- Nature Materials, Vol. 7, Issue 2, p. 105-114
Energy harvesting, reuse and upgrade to reduce primary energy usage in the USA
journal, October 2011
- Rattner, Alexander S.; Garimella, Srinivas
- Energy, Vol. 36, Issue 10
An electrochemical system for efficiently harvesting low-grade heat energy
journal, May 2014
- Lee, Seok Woo; Yang, Yuan; Lee, Hyun-Wook
- Nature Communications, Vol. 5, Article No. 3942
Li-Ion Cell Operation at Low Temperatures
journal, January 2013
- Ji, Yan; Zhang, Yancheng; Wang, Chao-Yang
- Journal of The Electrochemical Society, Vol. 160, Issue 4
New Directions for Low-Dimensional Thermoelectric Materials
journal, April 2007
- Dresselhaus, M. S.; Chen, G.; Tang, M. Y.
- Advanced Materials, Vol. 19, Issue 8, p. 1043-1053
Modeling of flowable slurry electrodes with combined faradaic and nonfaradaic currents
journal, April 2016
- Hoyt, Nathaniel C.; Savinell, Robert F.; Wainright, Jesse S.
- Chemical Engineering Science, Vol. 144
Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems
journal, September 2008
- Bell, L. E.
- Science, Vol. 321, Issue 5895, p. 1457-1461
A Review of Power Generation in Aqueous Thermogalvanic Cells
journal, January 1995
- Quickenden, T. I.; Mua, Y.
- Journal of The Electrochemical Society, Vol. 142, Issue 11, p. 3985-3994
Entropic driving-force effects upon preexponential factors for intramolecular electron transfer: implications for the assessment of nonadiabaticity
journal, January 1984
- Hupp, Joseph T.; Weaver, Michael J.
- Inorganic Chemistry, Vol. 23, Issue 2
A thermoelectric device based on beta-alumina solid electrolyte
journal, August 1974
- Weber, Neill
- Energy Conversion, Vol. 14, Issue 1
Theoretical assessment of an oxygen heat engine: The effect of mass transport limitation
journal, January 1991
- Virkar, Anil V.; Weber, Neill; Joshi, Ashok V.
- Energy Conversion and Management, Vol. 32, Issue 4
Semi-Solid Lithium Rechargeable Flow Battery
journal, May 2011
- Duduta, Mihai; Ho, Bryan; Wood, Vanessa C.
- Advanced Energy Materials, Vol. 1, Issue 4, p. 511-516
Relationship between thermoelectric figure of merit and energy conversion efficiency
journal, June 2015
- Kim, Hee Seok; Liu, Weishu; Chen, Gang
- Proceedings of the National Academy of Sciences, Vol. 112, Issue 27
Effects of operating temperature on the performance of vanadium redox flow batteries
journal, October 2015
- Zhang, C.; Zhao, T. S.; Xu, Q.
- Applied Energy, Vol. 155
Searching for a Better Thermal Battery
journal, March 2012
- Gur, I.; Sawyer, K.; Prasher, R.
- Science, Vol. 335, Issue 6075, p. 1454-1455
Harvesting Waste Thermal Energy Using a Carbon-Nanotube-Based Thermo-Electrochemical Cell
journal, March 2010
- Hu, Renchong; Cola, Baratunde A.; Haram, Nanda
- Nano Letters, Vol. 10, Issue 3
The Electrochemical Flow Capacitor: A New Concept for Rapid Energy Storage and Recovery
journal, May 2012
- Presser, Volker; Dennison, Christopher R.; Campos, Jonathan
- Advanced Energy Materials, Vol. 2, Issue 7
Thermoelectric Energy Conversion with Solid Electrolytes
journal, September 1983
- Cole, T.
- Science, Vol. 221, Issue 4614
Membrane-less hydrogen bromine flow battery
journal, August 2013
- Braff, William A.; Bazant, Martin Z.; Buie, Cullen R.
- Nature Communications, Vol. 4, Issue 1
Towards ionic liquid-based thermoelectrochemical cells for the harvesting of thermal energy
journal, December 2013
- Abraham, Theodore J.; MacFarlane, Douglas R.; Baughman, Ray H.
- Electrochimica Acta, Vol. 113
Solvent, ligand, and ionic charge effects on reaction entropies for simple transition-metal redox couples
journal, October 1984
- Hupp, Joseph T.; Weaver, Michael J.
- Inorganic Chemistry, Vol. 23, Issue 22
Porous-electrode theory with battery applications
journal, January 1975
- Newman, John; Tiedemann, William
- AIChE Journal, Vol. 21, Issue 1
An electrochemical heat engine for direct solar energy conversion
journal, January 1979
- Hammond, Robert H.; Risen, William M.
- Solar Energy, Vol. 23, Issue 5
Intramolecular and Environmental Contributions to Electrode Half-Reaction Entropies of M(tacn) 2 3+/2+ (M = Fe, Co, Ni, Ru; tacn = 1,4,7-Triazacyclononane) Redox Couples
journal, January 1999
- Turner, Jeffrey W.; Schultz, Franklin A.
- Inorganic Chemistry, Vol. 38, Issue 2
Boundary Layer Analysis of Membraneless Electrochemical Cells
journal, January 2013
- Braff, William A.; Buie, Cullen R.; Bazant, Martin Z.
- Journal of The Electrochemical Society, Vol. 160, Issue 11
Thermodynamics of Thermoelectric Phenomena and Applications
journal, August 2011
- Goupil, Christophe; Seifert, Wolfgang; Zabrocki, Knud
- Entropy, Vol. 13, Issue 8
MATERIALS SCIENCE: Enhanced: Thermoelectricity in Semiconductor Nanostructures
journal, February 2004
- Majumdar, A.
- Science, Vol. 303, Issue 5659
A metal-free organic–inorganic aqueous flow battery
journal, January 2014
- Huskinson, Brian; Marshak, Michael P.; Suh, Changwon
- Nature, Vol. 505, Issue 7482, p. 195-198
New Directions for Low-Dimensional Thermoelectric Materials
journal, June 2007
- Dresselhaus, Mildred S.; Chen, Gang; Tang, Ming Y.
- ChemInform, Vol. 38, Issue 26
Thermochemical data of pure substances
journal, March 1997
- Rumpf, Dr. -Ing. B.
- Veterinary Immunology and Immunopathology, Vol. 55, Issue 4
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- Wang, Xun; Huang, Yu-Ting; Liu, Chang
- Nature Communications, Vol. 10, Issue 1
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journal, September 2019
- McKay, Ian S.; Kunz, Larissa Y.; Majumdar, Arun
- Scientific Reports, Vol. 9, Issue 1