Design and performance of rechargeable sodium ion batteries, and symmetrical li-ion batteries with supercapacitor-like power density based upon polyoxovanadates

Chen, J.-J., Ye, J.-C., Zhang, X.-G., Symes, M. D. , Fan, S.-C., Long, D.-L. , Zheng, M.-S., Wu, D.-Y., Cronin, L. and Dong, Q.-F. (2018) Design and performance of rechargeable sodium ion batteries, and symmetrical li-ion batteries with supercapacitor-like power density based upon polyoxovanadates. Advanced Energy Materials, 8(6), 1701021. (doi:10.1002/aenm.201701021)

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Abstract

The polyanion Li7V15O36(CO3) is a nanosized molecular cluster (≈1 nm in size), that has the potential to form an open host framework with a higher surface-to-bulk ratio than conventional transition metal oxide electrode materials. Herein, practical rechargeable Na-ion batteries and symmetric Li-ion batteries are demonstrated based on the polyoxovanadate Li7V15O36(CO3). The vanadium centers in {V15O36(CO3)} do not all have the same VIV/V redox potentials, which permits symmetric devices to be created from this material that exhibit battery-like energy density and supercapacitor-like power density. An ultrahigh specific power of 51.5 kW kg−1 at 100 A g−1 and a specific energy of 125 W h kg−1 can be achieved, along with a long cycling life (>500 cycles). Moreover, electrochemical and theoretical studies reveal that {V15O36(CO3)} also allows the transport of large cations, like Na+, and that it can serve as the cathode material for rechargeable Na-ion batteries with a high specific capacity of 240 mA h g−1 and a specific energy of 390 W h kg−1 for the full Na-ion battery. Finally, the polyoxometalate material from these electrochemical energy storage devices can be easily extracted from spent electrodes by simple treatment with water, providing a potential route to recycling of the redox active material.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Symes, Dr Mark and Long, Dr De Liang and Cronin, Professor Leroy and Chen, Dr Jiajia
Authors: Chen, J.-J., Ye, J.-C., Zhang, X.-G., Symes, M. D., Fan, S.-C., Long, D.-L., Zheng, M.-S., Wu, D.-Y., Cronin, L., and Dong, Q.-F.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Advanced Energy Materials
Publisher:Wiley
ISSN:1614-6832
ISSN (Online):1614-6840
Published Online:22 November 2017
Copyright Holders:Copyright © 2017 Wiley-VCH Verlag GmbH & Co.
First Published:First published in Advanced Energy Materials 8(6):1701021
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
562821Innovative Manufacturing Research Centre for Continuous Manufacturing and Crystallisation (CMAC)Leroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/I033459/1CHEM - CHEMISTRY
571901International Collaboration in Chemistry - Modular microtubular architectures for photo-driven water splittingLeroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/J00135X/1CHEM - CHEMISTRY
577391Programmable Molecular Metal Oxides (PMMOs) - From Fundamentals to ApplicationLeroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/J015156/1CHEM - CHEMISTRY
605821The Multi-Corder: Poly-Sensor TechnologyDavid CummingEngineering and Physical Sciences Research Council (EPSRC)EP/K021966/1ENG - ENGINEERING ELECTRONICS & NANO ENG
616021Energy and the Physical Sciences: Hydrogen Production using a Proton Electron BufferLeroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/K023004/1CHEM - CHEMISTRY
621351Synthetic Biology applications to Water Supply and RemediationSteven BeaumontEngineering and Physical Sciences Research Council (EPSRC)EP/K038885/1VPO VICE PRINCIPAL RESEARCH & ENTERPRISE
633821A Digital DNA Nano Writer (DNA NanoFab)Leroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/L015668/1CHEM - CHEMISTRY
646611Programmable 'Digital' Synthesis for Discovery and Scale-up of Molecules, Clusters and NanomaterialsLeroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/L023652/1CHEM - CHEMISTRY
685741SMARTPOM: Artificial-Intelligence Driven Discovery and Synthesis of Polyoxometalate ClustersLeroy CroninEuropean Research Council (ERC)670467CHEM - CHEMISTRY