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

Polybenzimidazole (PBI) membranes for redox flow batteries

Patent ·
OSTI ID:1892831

Disclosed are redox flow battery membranes, redox flow batteries incorporating the membranes, and methods of forming the membranes. The membranes include a polybenzimidazole gel membrane that is capable of incorporating a high liquid content without loss of structure that is formed according to a process that includes in situ hydrolysis of a polyphosphoric acid solvent. The membranes are imbibed with a redox flow battery supporting electrolyte such as sulfuric acid and can operate at very high ionic conductivities of about 100 mS/cm or greater. Redox flow batteries incorporating the PBI-based membranes can operate at high current densities of about 100 mA/cm2 or greater.

Research Organization:
Univ. of South Carolina, Columbia, SC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000767
Assignee:
University of South Carolina (Columbia, SC)
Patent Number(s):
11,302,948
Application Number:
16/570,290
OSTI ID:
1892831
Country of Publication:
United States
Language:
English

References (51)

High-temperature polybenzimidazol-based membranes reference-book December 2010
Vanadium Electrolyte Studies for the Vanadium Redox Battery-A Review journal June 2016
One-Step Cationic Grafting of 4-Hydroxy-TEMPO and its Application in a Hybrid Redox Flow Battery with a Crosslinked PBI Membrane journal August 2017
Synthesis and Characterization of Pyridine-Based Polybenzimidazoles for High Temperature Polymer Electrolyte Membrane Fuel Cell Applications journal April 2005
Synthesis of Poly (2,2′-(1,4-phenylene) 5,5′-bibenzimidazole) ( para -PBI) and Phosphoric Acid Doped Membrane for Fuel Cells journal August 2009
Synthesis and Properties of Random Copolymers of Functionalised Polybenzimidazoles for High Temperature Fuel Cells journal March 2011
Synthesis and Properties of Segmented Block Copolymers of Functionalised Polybenzimidazoles for High-Temperature PEM Fuel Cells journal March 2011
Synthesis and Characterization of a New Fluorine-Containing Polybenzimidazole (PBI) for Proton-Conducting Membranes in Fuel Cells journal August 2013
High Polymer Content 3,5-Pyridine-Polybenzimidazole Copolymer Membranes with Improved Compressive Properties journal January 2014
High Polymer Content 2,5-Pyridine-Polybenzimidazole Copolymer Membranes with Improved Compressive Properties journal November 2014
Synthesis and characterization of high molecular weight hexafluoroisopropylidene-containing polybenzimidazole for high-temperature polymer electrolyte membrane fuel cells: Synthesis and Characterization of 6F-PBI journal July 2009
A new sequence isomer of AB-polybenzimidazole for high-temperature PEM fuel cells journal October 2011
Investigation of sequence isomer effects in AB-polybenzimidazole polymers journal November 2013
Solution polymerization of polybenzimidazole
  • Fishel, Kayley J.; Gulledge, Alexander L.; Pingitore, Andrew T.
  • Journal of Polymer Science Part A: Polymer Chemistry, Vol. 54, Issue 12 https://doi.org/10.1002/pola.28041
journal January 2016
Polybenzimidazole-based block copolymers: From monomers to membrane electrode assemblies for high temperature polymer electrolyte membrane fuel cells journal March 2017
A comparative study of phosphoric acid-doped m -PBI membranes journal October 2013
High temperature creep behavior of phosphoric acid-polybenzimidazole gel membranes journal August 2015
Polybenzimidazole/Acid Complexes as High-Temperature Membranes book
Polybenzimidazole Fuel Cell Technology book December 2012
PBI Membranes Via the PPA Process book January 2016
Electrochemical Hydrogen Pumping book January 2016
Implementing PGM-free electrocatalysts in high-temperature polymer electrolyte membrane fuel cells journal August 2018
Review of material research and development for vanadium redox flow battery applications journal July 2013
The use of polybenzimidazole membranes in vanadium redox flow batteries leading to increased coulombic efficiency and cycling performance journal January 2015
Progress and prospects of next-generation redox flow batteries journal November 2018
Fabrication of crosslinked polybenzimidazole membranes by trifunctional crosslinkers for high temperature proton exchange membrane fuel cells journal February 2018
Performance of vapor-fed direct dimethyl ether fuel cell utilizing high temperature polybenzimidazole polymer electrolyte membrane journal October 2012
Phosphoric acid-imbibed three-dimensional polyacrylamide/poly(vinyl alcohol) hydrogel as a new class of high-temperature proton exchange membrane journal May 2013
Synthesis and properties of phenylindane-containing polybenzimidazole (PBI) for high-temperature polymer electrolyte membrane fuel cells (PEMFCs) journal December 2013
Porous poly(benzimidazole) membrane for all vanadium redox flow battery journal April 2016
Polyphenylquinoxaline-based proton exchange membranes synthesized via the PPA Process for high temperature fuel cell systems journal July 2012
Crosslinked polybenzimidazole membranes for organic solvent nanofiltration (OSN): Analysis of crosslinking reaction mechanism and effects of reaction parameters journal November 2015
Polybenzimidazole based random copolymers containing hexafluoroisopropylidene functional groups for gas separations at elevated temperatures journal June 2017
High temperature proton exchange membranes based on polybenzimidazoles for fuel cells journal May 2009
Exploring and Exploiting the Effect of Solvent Treatment in Membrane Separations journal March 2017
Vanadium Redox Flow Batteries Using meta -Polybenzimidazole-Based Membranes of Different Thicknesses journal October 2017
Multinuclear NMR Study of the Effect of Acid Concentration on Ion Transport in Phosphoric Acid Doped Poly(benzimidazole) Membranes journal October 2012
Determination of the Molecular Parameters and Studies of the Chain Conformation of Polybenzimidazole in DMAc/LiCl journal December 2006
Sulfonated Polybenzimidazoles for High Temperature PEM Fuel Cells journal August 2010
Synthesis and Properties of Functionalized Polybenzimidazoles for High-Temperature PEMFCs journal October 2009
Advanced porous membranes with ultra-high selectivity and stability for vanadium flow batteries journal January 2016
A H 3 PO 4 preswelling strategy to enhance the proton conductivity of a H 2 SO 4 -doped polybenzimidazole membrane for vanadium flow batteries journal January 2016
Thin skinned asymmetric polybenzimidazole membranes with readily tunable morphologies for high-performance vanadium flow batteries journal January 2017
Highly proton conductive, dense polybenzimidazole membranes with low permeability to vanadium and enhanced H 2 SO 4 absorption capability for use in vanadium redox flow batteries journal January 2016
Polybenzimidazole Membranes for Hydrogen Production in the Hybrid Sulfur Electrolyzer journal April 2015
NMR Studies of Mass Transport in High-Acid-Content Fuel Cell Membranes Based on Phosphoric Acid and Polybenzimidazole journal January 2007
Advanced Redox-Flow Batteries: A Perspective journal September 2015
Processing and Pretreatment Effects on Vanadium Transport in Nafion Membranes journal October 2015
Sulfonated PBI Gel Membranes for Redox Flow Batteries journal January 2019
Characterizing Voltage Losses in an SO 2 Depolarized Electrolyzer Using Sulfonated Polybenzimidazole Membranes journal January 2017
Membranes for Redox Flow Battery Applications journal June 2012

Similar Records

Polybenzimidazole (PBI) membranes for redox flow batteries
Patent · Tue Oct 24 00:00:00 EDT 2023 · OSTI ID:2293775

Low permeability polybenzimidazole (PBI) gel membranes for redox flow batteries
Patent · Tue Oct 25 00:00:00 EDT 2022 · OSTI ID:1986752

Related Subjects