Copper hexacyanoferrate battery electrodes with long cycle life and high power

Handle URI:
http://hdl.handle.net/10754/596990
Title:
Copper hexacyanoferrate battery electrodes with long cycle life and high power
Authors:
Wessells, Colin D.; Huggins, Robert A.; Cui, Yi
Abstract:
Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. Stationary energy storage systems that can operate for many cycles, at high power, with high round-trip energy efficiency, and at low cost are required. Existing energy storage technologies cannot satisfy these requirements. Here we show that crystalline nanoparticles of copper hexacyanoferrate, which has an ultra-low strain open framework structure, can be operated as a battery electrode in inexpensive aqueous electrolytes. After 40,000 deep discharge cycles at a 17g-C rate, 83% of the original capacity of copper hexacyanoferrate is retained. Even at a very high cycling rate of 83g-C, two thirds of its maximum discharge capacity is observed. At modest current densities, round-trip energy efficiencies of 99% can be achieved. The low-cost, scalable, room-temperature co-precipitation synthesis and excellent electrode performance of copper hexacyanoferrate make it attractive for large-scale energy storage systems. © 2011 Macmillan Publishers Limited. All rights reserved.
Citation:
Wessells CD, Huggins RA, Cui Y (2011) Copper hexacyanoferrate battery electrodes with long cycle life and high power. Nat Comms 2: 550. Available: http://dx.doi.org/10.1038/ncomms1563.
Publisher:
Springer Nature
Journal:
Nature Communications
KAUST Grant Number:
KUS-l1-001-12
Issue Date:
22-Nov-2011
DOI:
10.1038/ncomms1563
PubMed ID:
22109524
Type:
Article
ISSN:
2041-1723
Sponsors:
We acknowledge support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-l1-001-12). A portion of this work was supported by 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. We thank Dr. Judy Cha for TEM imaging.
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Full metadata record

DC FieldValue Language
dc.contributor.authorWessells, Colin D.en
dc.contributor.authorHuggins, Robert A.en
dc.contributor.authorCui, Yien
dc.date.accessioned2016-02-23T13:51:58Zen
dc.date.available2016-02-23T13:51:58Zen
dc.date.issued2011-11-22en
dc.identifier.citationWessells CD, Huggins RA, Cui Y (2011) Copper hexacyanoferrate battery electrodes with long cycle life and high power. Nat Comms 2: 550. Available: http://dx.doi.org/10.1038/ncomms1563.en
dc.identifier.issn2041-1723en
dc.identifier.pmid22109524en
dc.identifier.doi10.1038/ncomms1563en
dc.identifier.urihttp://hdl.handle.net/10754/596990en
dc.description.abstractShort-term transients, including those related to wind and solar sources, present challenges to the electrical grid. Stationary energy storage systems that can operate for many cycles, at high power, with high round-trip energy efficiency, and at low cost are required. Existing energy storage technologies cannot satisfy these requirements. Here we show that crystalline nanoparticles of copper hexacyanoferrate, which has an ultra-low strain open framework structure, can be operated as a battery electrode in inexpensive aqueous electrolytes. After 40,000 deep discharge cycles at a 17g-C rate, 83% of the original capacity of copper hexacyanoferrate is retained. Even at a very high cycling rate of 83g-C, two thirds of its maximum discharge capacity is observed. At modest current densities, round-trip energy efficiencies of 99% can be achieved. The low-cost, scalable, room-temperature co-precipitation synthesis and excellent electrode performance of copper hexacyanoferrate make it attractive for large-scale energy storage systems. © 2011 Macmillan Publishers Limited. All rights reserved.en
dc.description.sponsorshipWe acknowledge support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-l1-001-12). A portion of this work was supported by 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. We thank Dr. Judy Cha for TEM imaging.en
dc.publisherSpringer Natureen
dc.rightsOpen access articles are published under a CC BY license (Creative Commons Attribution 4.0 International License).en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleCopper hexacyanoferrate battery electrodes with long cycle life and high poweren
dc.typeArticleen
dc.identifier.journalNature Communicationsen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
dc.contributor.institutionStanford Linear Accelerator Center, Menlo Park, United Statesen
kaust.grant.numberKUS-l1-001-12en

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