 A high-performance carbon nanoparticle-decorated graphite felt electrode for vanadium redox flow batteriesL. Wei, T.S. Zhao, G. Zhao, L. An and L. Zeng Applied Energy, 2016, vol. 176, issue C, 74-79 Abstract: Increasing the performance of vanadium redox flow batteries (VRFBs), especially the energy efficiency and power density, is critically important to reduce the system cost to a level for widespread commercialization. Unlike conventional VRFBs with flow-through structure, in this work we create a VRFB featuring a flow-field structure with a carbon nanoparticle-decorated graphite felt electrode for the battery. This novel structure, exhibiting a significantly reduced ohmic loss through reducing electrode thickness, an increased surface area and improved electrocatalytic activity by coating carbon nanoparticles, allows the energy efficiency up to 84.8% at a current density of as high as 100mAcm−2 and the peak power density to reach a value of 508mWcm−2. In addition, it is demonstrated that the battery with this proposed structure exhibits a substantially improved rate capability and capacity retention as opposed to conventional flow-through structured battery with thick graphite felt electrodes. Keywords: Vanadium redox flow battery; Thin electrode; Carbon nanoparticles; Energy efficiency (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:176:y:2016:i:c:p:74-79 Ordering information: This journal article can be ordered from DOI: 10.1016/j.apenergy.2016.05.048 Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
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