Batteries for Efficient Energy Extraction from a Water Salinity Difference

Fabio La Mantia; Mauro Pasta; Heather D. Deshazer; Bruce E. Logan; Yi Cui

doi:10.1021/nl200500s

Batteries for Efficient Energy Extraction from a Water Salinity Difference

Fabio La Mantia, Mauro Pasta, Heather D. Deshazer, Bruce E. Logan, Yi Cui

Research output: Contribution to journal › Article › peer-review

316 Scopus citations

Abstract

The salinity difference between seawater and river water is a renewable source of enormous entropic energy, but extracting it efficiently as a form of useful energy remains a challenge. Here we demonstrate a device called "mixing entropy battery", which can extract and store it as useful electrochemical energy. The battery, containing a Na2-xMn 5O10 nanorod electrode, was shown to extract energy from real seawater and river water and can be applied to a variety of salt waters. We demonstrated energy extraction efficiencies of up to 74%. Considering the flow rate of river water into oceans as the limiting factor, the renewable energy production could potentially reach 2 TW, or ∼13% of the current world energy consumption. The mixing entropy battery is simple to fabricate and could contribute significantly to renewable energy in the future. © 2011 American Chemical Society.

Original language	English (US)
Pages (from-to)	1810-1813
Number of pages	4
Journal	Nano Letters
Volume	11
Issue number	4
DOIs	https://doi.org/10.1021/nl200500s
State	Published - Apr 13 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-001-12, KUS-I1-003-13
Acknowledgements: The work is partially supported by King Abdullah University of Science and Technology (KAUST) under awards KUS-11-001-12 and KUS-I1-003-13 and by the Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under contract DE-AC02-76SF0051, through the SLAC National Accelerator Laboratory LDRD project.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "Batteries for Efficient Energy Extraction from a Water Salinity Difference",

abstract = "The salinity difference between seawater and river water is a renewable source of enormous entropic energy, but extracting it efficiently as a form of useful energy remains a challenge. Here we demonstrate a device called {"}mixing entropy battery{"}, which can extract and store it as useful electrochemical energy. The battery, containing a Na2-xMn 5O10 nanorod electrode, was shown to extract energy from real seawater and river water and can be applied to a variety of salt waters. We demonstrated energy extraction efficiencies of up to 74%. Considering the flow rate of river water into oceans as the limiting factor, the renewable energy production could potentially reach 2 TW, or ∼13% of the current world energy consumption. The mixing entropy battery is simple to fabricate and could contribute significantly to renewable energy in the future. {\textcopyright} 2011 American Chemical Society.",

author = "{La Mantia}, Fabio and Mauro Pasta and Deshazer, {Heather D.} and Logan, {Bruce E.} and Yi Cui",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-11-001-12, KUS-I1-003-13 Acknowledgements: The work is partially supported by King Abdullah University of Science and Technology (KAUST) under awards KUS-11-001-12 and KUS-I1-003-13 and by the Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under contract DE-AC02-76SF0051, through the SLAC National Accelerator Laboratory LDRD project. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2011",

month = apr,

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doi = "10.1021/nl200500s",

language = "English (US)",

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journal = "Nano Letters",

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AU - La Mantia, Fabio

AU - Pasta, Mauro

AU - Deshazer, Heather D.

AU - Logan, Bruce E.

AU - Cui, Yi

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-11-001-12, KUS-I1-003-13 Acknowledgements: The work is partially supported by King Abdullah University of Science and Technology (KAUST) under awards KUS-11-001-12 and KUS-I1-003-13 and by the Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under contract DE-AC02-76SF0051, through the SLAC National Accelerator Laboratory LDRD project. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2011/4/13

Y1 - 2011/4/13

N2 - The salinity difference between seawater and river water is a renewable source of enormous entropic energy, but extracting it efficiently as a form of useful energy remains a challenge. Here we demonstrate a device called "mixing entropy battery", which can extract and store it as useful electrochemical energy. The battery, containing a Na2-xMn 5O10 nanorod electrode, was shown to extract energy from real seawater and river water and can be applied to a variety of salt waters. We demonstrated energy extraction efficiencies of up to 74%. Considering the flow rate of river water into oceans as the limiting factor, the renewable energy production could potentially reach 2 TW, or ∼13% of the current world energy consumption. The mixing entropy battery is simple to fabricate and could contribute significantly to renewable energy in the future. © 2011 American Chemical Society.

AB - The salinity difference between seawater and river water is a renewable source of enormous entropic energy, but extracting it efficiently as a form of useful energy remains a challenge. Here we demonstrate a device called "mixing entropy battery", which can extract and store it as useful electrochemical energy. The battery, containing a Na2-xMn 5O10 nanorod electrode, was shown to extract energy from real seawater and river water and can be applied to a variety of salt waters. We demonstrated energy extraction efficiencies of up to 74%. Considering the flow rate of river water into oceans as the limiting factor, the renewable energy production could potentially reach 2 TW, or ∼13% of the current world energy consumption. The mixing entropy battery is simple to fabricate and could contribute significantly to renewable energy in the future. © 2011 American Chemical Society.

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JO - Nano Letters

JF - Nano Letters

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Batteries for Efficient Energy Extraction from a Water Salinity Difference

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