شماره ركورد كنفرانس :
4719
عنوان مقاله :
High power Vanadium redox flow battery based on Bismuth-tungsten oxide modified carbon felt negative electrode
پديدآورندگان :
Mousavihashemi Seyedabolfazl mosavi.sam@gmail.com Electrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Fax: +98 41 3334 0191; Tel: +98 41 3339 3138; E-mail: b , Hosseini Mir Ghasem mg-hosseini@tabrizu.ac.ir Electrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Fax: +98 41 3334 0191; Tel: +98 41 3339 3138; E-mail:
كليدواژه :
Vanadium Redox Flow Batteries , Tungsten Oxide , N , Doping , Electrolyte Optimization , Bi2WO6.
عنوان كنفرانس :
بيست و يكمين كنفرانس ملي شيمي فيزيك انجمن شيمي ايران
چكيده فارسي :
Vanadium redox flow batteries (VRFB) are considered a prominent alternative to largescale energy storage because of their outstanding features compared to other energy storage technologies (i.e. Lithium ion batteries) such as longer lifetime (10,000 cycles) [1], flexible design, and minimum self-discharge. However, despite of their maturity, cost reduction is the major challenge to overcome in order to achieve VRFB widespread applications, including renewable integration, smart grid uses and off-grid electrification areas [2]. In this work Bi2WO6 modified felt was prepared using a 2-step simple hydrothermal method. Many characterization technics such as FE-SEM, EDS, XRD, XPS, Raman, and FT-IR were used to investigate electrocatalyst materials. EIS, CV, Charge/discharge and cycling tests were used to evaluate cell performance. The Vanadium/acid electrolyte concentration was optimized and then optimized parameters were used to run single cell experiments in presence of treated and electrocatalyst modified carbon felt electrodes. Bi2WO6 modified felt was used as negative electrode. Figures below represent SEM of Bi2WO6-CF and a charge/discharge of single cell using Bi2WO6 modified carbon felt electrode.
