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dc.contributor.authorWessells, Colin D.
dc.contributor.authorMcDowell, Matthew T.
dc.contributor.authorPeddada, Sandeep V.
dc.contributor.authorPasta, Mauro
dc.contributor.authorHuggins, Robert A.
dc.contributor.authorCui, Yi
dc.date.accessioned2016-02-28T06:35:51Z
dc.date.available2016-02-28T06:35:51Z
dc.date.issued2012-02-28
dc.identifier.citationWessells CD, McDowell MT, Peddada SV, Pasta M, Huggins RA, et al. (2012) Tunable Reaction Potentials in Open Framework Nanoparticle Battery Electrodes for Grid-Scale Energy Storage. ACS Nano 6: 1688–1694. Available: http://dx.doi.org/10.1021/nn204666v.
dc.identifier.issn1936-0851
dc.identifier.issn1936-086X
dc.identifier.pmid22283739
dc.identifier.doi10.1021/nn204666v
dc.identifier.urihttp://hdl.handle.net/10754/600091
dc.description.abstractThe electrical energy grid has a growing need for energy storage to address short-term transients, frequency regulation, and load leveling. Though electrochemical energy storage devices such as batteries offer an attractive solution, current commercial battery technology cannot provide adequate power, and cycle life, and energy efficiency at a sufficiently low cost. Copper hexacyanoferrate and nickel hexacyanoferrate, two open framework materials with the Prussian Blue structure, were recently shown to offer ultralong cycle life and high-rate performance when operated as battery electrodes in safe, inexpensive aqueous sodium ion and potassium ion electrolytes. In this report, we demonstrate that the reaction potential of copper-nickel alloy hexacyanoferrate nanoparticles may be tuned by controlling the ratio of copper to nickel in these materials. X-ray diffraction, TEM energy dispersive X-ray spectroscopy, and galvanostatic electrochemical cycling of copper-nickel hexacyanoferrate reveal that copper and nickel form a fully miscible solution at particular sites in the framework without perturbing the structure. This allows copper-nickel hexacyanoferrate to reversibly intercalate sodium and potassium ions for over 2000 cycles with capacity retentions of 100% and 91%, respectively. The ability to precisely tune the reaction potential of copper-nickel hexacyanoferrate without sacrificing cycle life will allow the development of full cells that utilize the entire electrochemical stability window of aqueous sodium and potassium ion electrolytes. © 2012 American Chemical Society.
dc.description.sponsorshipThe authors acknowledge support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-I1-001-12). They also acknowledge the Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under contract DE-AC02-76SF00515 through the SLAC National Accelerator Laboratory LDRD project.
dc.publisherAmerican Chemical Society (ACS)
dc.subjectbatteries
dc.subjectcopper hexacyanoferrate
dc.subjectelectric grid
dc.subjectenergy storage
dc.subjectnickel hexacyanoferrate
dc.subjectPrussian Blue
dc.titleTunable Reaction Potentials in Open Framework Nanoparticle Battery Electrodes for Grid-Scale Energy Storage
dc.typeArticle
dc.identifier.journalACS Nano
dc.contributor.institutionStanford University, Palo Alto, United States
dc.contributor.institutionStanford Linear Accelerator Center, Menlo Park, United States
kaust.grant.numberKUS-I1-001-12


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