Alkaline all iron redox flow battery with a polyethylene/poly(styrene-co-divinylbenzene) interpolymer cation-exchange membrane.

ABSTRACT: This work describes the suitability of a polyethylene styrene-DVB based interpolymer cation exchange membrane for use in a highly alkaline redox flow battery (RFB) with a [Fe(TEA)OH]^2-/[Fe(TEA)OH]^- and Fe(CN)₆ ^3-/Fe(CN)₆ ^4- redox couple. The alkaline stability of the membrane for 1440 h was evaluated in 5 N NaOH containing a 200 mM Fe(CN)₆ ^3-/Fe(CN)₆ ^4- redox couple. It was assessed according to the changes in the electrochemical and physicochemical properties. The performance of the membrane was evaluated over 40 charge-discharge cycles at a current density of 5 mA cm^-2 current in a designed RFB cell. The obtained average coulombic efficiency (CE) was 92%, energy effici

SUBMITTER: Sreenath S 

PROVIDER: S-EPMC9635064 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature