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Title: Double-membrane triple-electrolyte redox flow battery design

Abstract

A redox flow battery is provided having a double-membrane (one cation exchange membrane and one anion exchange membrane), triple-electrolyte (one electrolyte in contact with the negative electrode, one electrolyte in contact with the positive electrode, and one electrolyte positioned between and in contact with the two membranes). The cation exchange membrane is used to separate the negative or positive electrolyte and the middle electrolyte, and the anion exchange membrane is used to separate the middle electrolyte and the positive or negative electrolyte. This design physically isolates, but ionically connects, the negative electrolyte and positive electrolyte. The physical isolation offers great freedom in choosing redox pairs in the negative electrolyte and positive electrolyte, making high voltage of redox flow batteries possible. The ionic conduction drastically reduces the overall ionic crossover between negative electrolyte and positive one, leading to high columbic efficiency.

Inventors:
; ;
Issue Date:
Research Org.:
Univ. of Delaware, Newark, DE (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1425946
Patent Number(s):
9917323
Application Number:
13/918,444
Assignee:
University of Delaware (Newark, DE)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
AR000009; AR0000346
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jun 14
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Yushan, Yan, Gu, Shuang, and Gong, Ke. Double-membrane triple-electrolyte redox flow battery design. United States: N. p., 2018. Web.
Yushan, Yan, Gu, Shuang, & Gong, Ke. Double-membrane triple-electrolyte redox flow battery design. United States.
Yushan, Yan, Gu, Shuang, and Gong, Ke. Tue . "Double-membrane triple-electrolyte redox flow battery design". United States. https://www.osti.gov/servlets/purl/1425946.
@article{osti_1425946,
title = {Double-membrane triple-electrolyte redox flow battery design},
author = {Yushan, Yan and Gu, Shuang and Gong, Ke},
abstractNote = {A redox flow battery is provided having a double-membrane (one cation exchange membrane and one anion exchange membrane), triple-electrolyte (one electrolyte in contact with the negative electrode, one electrolyte in contact with the positive electrode, and one electrolyte positioned between and in contact with the two membranes). The cation exchange membrane is used to separate the negative or positive electrolyte and the middle electrolyte, and the anion exchange membrane is used to separate the middle electrolyte and the positive or negative electrolyte. This design physically isolates, but ionically connects, the negative electrolyte and positive electrolyte. The physical isolation offers great freedom in choosing redox pairs in the negative electrolyte and positive electrolyte, making high voltage of redox flow batteries possible. The ionic conduction drastically reduces the overall ionic crossover between negative electrolyte and positive one, leading to high columbic efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {3}
}

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Works referenced in this record:

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