Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Crosslinked Polyethyleneimine Gel Polymer Interface to Improve Cycling Stability of RFBs

Journal Article · · Energy Material Advances
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. BATTELLE (PACIFIC NW LAB)
+ Show Author Affiliations

Herein, we found that a new gel polymer interface (GPI) with a large amount of amino and carboxylic acid groups introduced between positive electrode and membrane acts as a key role to prevent the diffusion of vanadium ions across the membrane leading to a severe capacity loss in vanadium redox-flow batteries (VRFBs) over long-term cycling and improving the surface wettability of carbon felt for better reduction and oxidation reactions. XPS and 1H NMR spectra demonstrated that the cross-linked GPI is chemically stable without dissolution of polymers and swellable in the strong acidic electrolytes for 100 cycles. ICP-MS, FT-IR and EDX results proved that the GPI in the electrolytes keeps the concentration of VO2+ as a reversible redox-active species in catholyte, resulting in improved cycling stability due to its functionality to prevent the diffusion of active species across the membrane and stabilize the oxidation states of active species

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1894494
Report Number(s):
PNNL-SA-160359
Journal Information:
Energy Material Advances, Vol. 2022
Country of Publication:
United States
Language:
English

References (25)

Recent Progress in Redox Flow Battery Research and Development September 2012
Progress in redox flow batteries, remaining challenges and their applications in energy storage January 2012
Progress in Flow Battery Research and Development June 2011
Cycling performance and efficiency of sulfonated poly(sulfone) membranes in vanadium redox flow batteries November 2010
A significantly improved membrane for vanadium redox flow battery July 2010
Membrane stability studies for vanadium redox cell applications February 2004
Electrolyte Lifetime in Aqueous Organic Redox Flow Batteries: A Critical Review February 2020
Ion exchange membranes for vanadium redox flow battery (VRB) applications March 2011
On the Benefits of a Symmetric Redox Flow Battery December 2015
Capacity Decay and Remediation of Nafion-based All-Vanadium Redox Flow Batteries December 2012
Polydopamine coated SPEEK membrane for a vanadium redox flow battery January 2015
Open Data, Models, and Codes for Vanadium Redox Batch Cell Systems: A Systems Approach Using Zero-Dimensional Models September 2019
Effect of amination agent on the properties of quaternized poly(phthalazinone ether sulfone) anion exchange membrane for vanadium redox flow battery application May 2010
Advanced Charged Sponge-Like Membrane with Ultrahigh Stability and Selectivity for Vanadium Flow Batteries November 2015
Modification of Nafion membrane using interfacial polymerization for vanadium redox flow battery applications March 2008
Recent development of membrane for vanadium redox flow battery applications: A review March 2019
Recent development of polymer membranes as separators for all-vanadium redox flow batteries January 2015
A review of all‐vanadium redox flow battery durability: Degradation mechanisms and mitigation strategies June 2019
Capacity Decay Mechanism of Microporous Separator-Based All-Vanadium Redox Flow Batteries and its Recovery October 2013
Coordination chemistry of vanadium in metallopharmaceutical candidate compounds October 2001
EDTA-functionalized KCC-1 and KIT-6 mesoporous silicas for Nd3+ ion recovery from aqueous solutions November 2018
Analysis of the Oxidation of the V(II) by Dissolved Oxygen Using UV-Visible Spectrophotometry in a Vanadium Redox Flow Battery January 2013
Tunable Oxygen Functional Groups as Electrocatalysts on Graphite Felt Surfaces for All-Vanadium Flow Batteries May 2016
Tuning the Perfluorosulfonic Acid Membrane Morphology for Vanadium Redox-Flow Batteries December 2016
A Stable Vanadium Redox-Flow Battery with High Energy Density for Large-Scale Energy Storage March 2011

Similar Records

Related Subjects

polymer interface
cross over
gel polymer
long-term cycling
redox flow batteries
Vanadium redox flow battery
capacity fading
pH-responsive polymer
postiviely-charged polymer
polyethyleneimine
cross-linking
electrode modification
electrostatic repulsion
multifuntional