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Title: Redox active polymers and colloidal particles for flow batteries

Abstract

The invention provides a redox flow battery comprising a microporous or nanoporous size-exclusion membrane, wherein one cell of the battery contains a redox-active polymer dissolved in the non-aqueous solvent or a redox-active colloidal particle dispersed in the non-aqueous solvent. The redox flow battery provides enhanced ionic conductivity across the electrolyte separator and reduced redox-active species crossover, thereby improving the performance and enabling widespread utilization. Redox active poly(vinylbenzyl ethylviologen) (RAPs) and redox active colloidal particles (RACs) were prepared and were found to be highly effective redox species. Controlled potential bulk electrolysis indicates that 94-99% of the nominal charge on different RAPs is accessible and the electrolysis products are stable upon cycling. The high concentration attainable (>2.0 M) for RAPs in common non-aqueous battery solvents, their electrochemical and chemical reversibility, and their hindered transport across porous separators make them attractive materials for non-aqueous redox flow batteries based on size-selectivity.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1454246
Patent Number(s):
9982068
Application Number:
15/000,910
Assignee:
The Board of Trustees of the University of Illinois (Urbana, IL)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Jan 19
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Gavvalapalli, Nagarjuna, Moore, Jeffrey S., Rodriguez-Lopez, Joaquin, Cheng, Kevin, Shen, Mei, and Lichtenstein, Timothy. Redox active polymers and colloidal particles for flow batteries. United States: N. p., 2018. Web.
Gavvalapalli, Nagarjuna, Moore, Jeffrey S., Rodriguez-Lopez, Joaquin, Cheng, Kevin, Shen, Mei, & Lichtenstein, Timothy. Redox active polymers and colloidal particles for flow batteries. United States.
Gavvalapalli, Nagarjuna, Moore, Jeffrey S., Rodriguez-Lopez, Joaquin, Cheng, Kevin, Shen, Mei, and Lichtenstein, Timothy. Tue . "Redox active polymers and colloidal particles for flow batteries". United States. https://www.osti.gov/servlets/purl/1454246.
@article{osti_1454246,
title = {Redox active polymers and colloidal particles for flow batteries},
author = {Gavvalapalli, Nagarjuna and Moore, Jeffrey S. and Rodriguez-Lopez, Joaquin and Cheng, Kevin and Shen, Mei and Lichtenstein, Timothy},
abstractNote = {The invention provides a redox flow battery comprising a microporous or nanoporous size-exclusion membrane, wherein one cell of the battery contains a redox-active polymer dissolved in the non-aqueous solvent or a redox-active colloidal particle dispersed in the non-aqueous solvent. The redox flow battery provides enhanced ionic conductivity across the electrolyte separator and reduced redox-active species crossover, thereby improving the performance and enabling widespread utilization. Redox active poly(vinylbenzyl ethylviologen) (RAPs) and redox active colloidal particles (RACs) were prepared and were found to be highly effective redox species. Controlled potential bulk electrolysis indicates that 94-99% of the nominal charge on different RAPs is accessible and the electrolysis products are stable upon cycling. The high concentration attainable (>2.0 M) for RAPs in common non-aqueous battery solvents, their electrochemical and chemical reversibility, and their hindered transport across porous separators make them attractive materials for non-aqueous redox flow batteries based on size-selectivity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}

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Works referenced in this record:

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journal, November 2015


Nonaqueous redox-flow batteries: organic solvents, supporting electrolytes, and redox pairs
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An aqueous, polymer-based redox-flow battery using non-corrosive, safe and low-cost materials
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A metal-free and all-organic redox flow battery with polythiophene as the electroactive species
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Polymer/zinc hybrid-flow battery using block copolymer micelles featuring a TEMPO corona as catholyte
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An All-Organic Non-aqueous Lithium-Ion Redox Flow Battery
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Pathways to low-cost electrochemical energy storage: a comparison of aqueous and nonaqueous flow batteries
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Impact of Redox-Active Polymer Molecular Weight on the Electrochemical Properties and Transport Across Porous Separators in Nonaqueous Solvents
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  • Nagarjuna, Gavvalapalli; Hui, Jingshu; Cheng, Kevin J.
  • Journal of the American Chemical Society, Vol. 136, Issue 46, p. 16309-16316
  • https://doi.org/10.1021/ja508482e

A review of current developments in non-aqueous redox flow batteries: characterization of their membranes for design perspective
journal, January 2013


Nanoporous Polytetrafluoroethylene/Silica Composite Separator as a High-Performance All-Vanadium Redox Flow Battery Membrane
journal, May 2013


Polyvinyl Chloride/Silica Nanoporous Composite Separator for All-Vanadium Redox Flow Battery Applications
journal, January 2013


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Nanofiltration (NF) membranes: the next generation separators for all vanadium redox flow batteries (VRBs)?
journal, January 2011