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Title: Advanced Hydrogen-Bromine Flow Batteries with Improved Efficiency, Durability and Cost

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0071601jes· OSTI ID:1532175
 [1];  [1];  [2];  [2];  [3];  [3];  [4];  [4];  [5]; ORCiD logo [5]
  1. TVN Systems, Inc., Lawrence, KS (United States)
  2. Univ. of Kansas, Lawrence, KS (United States)
  3. Vanderbilt Univ., Nashville, TN (United States)
  4. Northeastern Univ., Boston, MA (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

The hydrogen/bromine flow battery is a promising candidate for large-scale energy storage due to fast kinetics, highly reversible reactions and low chemical costs. However, today's conventional hydrogen/bromine flow batteries use membrane materials (such as Nafion), platinum catalysts, and carbon-paper electrode materials that are expensive. In addition, platinum catalysts can be poisoned and corroded when exposed to HBr and Br2, compromising system lifetime. To reduce the cost and increase the durability of H2/Br2 flow batteries, new materials are developed. The new Nafion/polyvinylidene fluoride electrospun composite membranes have high perm-selectivity at a fraction of the cost of Nafion membranes; the new nitrogen-functionalized platinum-iridium catalyst possesses excellent activity and durability in HBr/Br2 environment; and the new carbon-nanotube-based Br2 electrodes can achieve equal or better performance with less materials when compared to baseline electrode materials. Preliminary cost analysis shows that the new materials reduce H2/Br2 flow-battery energy-storage system stack and system costs significantly. The resulting advanced H2/Br2 flow batteries offer high power, high efficiency, substantially increased durability, and expected reduced cost.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1532175
Journal Information:
Journal of the Electrochemical Society, Vol. 163, Issue 1; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 62 works
Citation information provided by
Web of Science

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Cited By (8)

Electrospun Ionomeric Fibers with Anion Conducting Properties journal April 2019
A Review of Hydrogen/Halogen Flow Cells journal May 2016
Hydrogen/functionalized benzoquinone for a high-performance regenerative fuel cell as a potential large-scale energy storage platform journal January 2020
Critical Review—Experimental Diagnostics and Material Characterization Techniques Used on Redox Flow Batteries journal January 2018
Effect of Bromine Complexing Agents on Membrane Performance in Hydrogen Bromine Flow Batteries journal January 2019
Evaluation of Electrospun Fibrous Mats Targeted for Use as Flow Battery Electrodes journal January 2017
Synthesis and Evaluation of Rh x S y Catalyst with High Affinity for Nafion Ionomer for HOR/HER in a H 2 -Br 2 Regenerative Fuel Cell journal January 2019
Bromate anion reduction: novel autocatalytic (EC″) mechanism of electrochemical processes. Its implication for redox flow batteries of high energy and power densities journal September 2017

Figures / Tables (11)


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