title: Static and Dynamic Studies on LiNi1/3 Co1/3 Mn1/3 O2 -Based Suspensions for Semi-Solid Flow Batteries.
abstract: LiNi1/3 Co1/3 Mn1/3 O2 (LNCM)-based suspensions for semi-solid flow batteries (SSFB) have been investigated by galvanostatic charge/discharge an electrochemical impedance spectroscopy (EIS). The resistance and electrochemical performance of half cells (vs. Li/Li(+) ) as well as the rheological properties are affected by the content of a commercially available electroconductive carbon black [KetjenBlack (KB), AkzoNobel] in the suspensions. In static conditions, a cell with 11.87 and 13.97 % by volume of KB and LNCM delivers high capacity 130 mA h g(-1) at 5 mA cm(-2) , respectively, and a coulombic efficiency of 90 % over 10 injections. The impedance of half cells is dominated by a contact resistance fitted with a resistor and a constant phase element (CPE) in parallel. In flow conditions, cell potential depends on applied current density and measured over potentials are ∼0.3 and 0.7 V for 0.33 and 1 mA cm(-2) , respectively, for a cell containing a suspension with 9.53 % in volume of KB and 13.90 % in volume of LNCM. The effect of the cell contact resistance on the electrochemical performance is discussed.
authors.affiliation: Catalonia Institute for Energy Research, Jardins de les Dones de Negre 1, 08930, Sant Adrià del Besos, Spain. jjacas@irec.cat.
authors.forename: Jordi Jacas
authors.identifier: 0000-0001-5981-6168
authors.initials: JJ
authors.lastname: Biendicho
authors.affiliation: Catalonia Institute for Energy Research, Jardins de les Dones de Negre 1, 08930, Sant Adrià del Besos, Spain.
authors.forename: Cristina
authors.initials: C
authors.lastname: Flox
authors.affiliation: Catalonia Institute for Energy Research, Jardins de les Dones de Negre 1, 08930, Sant Adrià del Besos, Spain.
authors.forename: Laura
authors.initials: L
authors.lastname: Sanz
authors.affiliation: Catalonia Institute for Energy Research, Jardins de les Dones de Negre 1, 08930, Sant Adrià del Besos, Spain.|Departament d'Electronica, Universitat de Barcelona, C. de Martí I Franquès 1, 08028, Barcelona, Spain.
authors.forename: Joan Ramon
authors.initials: JR
authors.lastname: Morante
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D004553:Electric Conductivity; D011211:Electric Power Supplies; D004563:Electrochemistry; D004566:Electrodes; D008094:Lithium / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D053260:Soot / Q000737:chemistry; D013535:Suspensions; D014783:Viscosity
chemical_list: D010087:Oxides; D053260:Soot; D013535:Suspensions; D003035:Cobalt; D008345:Manganese; D009532:Nickel; D008094:Lithium
keywords: carbon black; flow battery; semi solid; suspensions; viscosity