Non-aqueous redox flow batteries with nickel and iron tris(2,2 ′-bipyridine) complex electrolyte

Junyoung Mun; Myung Jin Lee; Joung Won Park; Duk Jin Oh; Doo Yeon Lee; Seok Gwang Doo

doi:10.1149/2.033206esl

Non-aqueous redox flow batteries with nickel and iron tris(2,2 ^′-bipyridine) complex electrolyte

Junyoung Mun
, Myung Jin Lee
, Joung Won Park
, Duk Jin Oh
, Doo Yeon Lee
, Seok Gwang Doo

Samsung

Research output: Contribution to journal › Article › peer-review

120 Scopus citations

Abstract

An organic redox flow battery adopting tris(2,2 ^′- bipyridine)nickel(II)tetrafluoroborate (Ni(Bpy) ₃(BF ₄) ₂) and tris(2,2 ^′-bipyridine)iron(II) tetrafluoroborate (Fe(BPy) ₃(BF ₄) ₂)) in propylenecarbonate electrolyte is investigated. With cyclic voltammetry, the redox current of one-electron related Fe(II)Fe(III) and two-electron related Ni(II)Ni(0) appears at 0.65 V and -1.66 V (vs. AgAg), respectively and their cycleabilities are highly stable during 100 cycles. Their charge-discharge characteristics on the carbon-felt electrodes are evaluated with 0.4 M Fe(Bpy) ₃(BF ₄) ₂ and 0.2 M Ni(Bpy) ₃(BF ₄) ₂ which are adopted as catholyte and anolyte. Comparing with the aqueous system, the higher cell voltage of 2.2 V was achieved and initial coulombic and energy efficiencies were reached with 90.4 and 81.8.

Original language	English
Pages (from-to)	A80-A82
Journal	Electrochemical and Solid-State Letters
Volume	15
Issue number	6
DOIs	https://doi.org/10.1149/2.033206esl
State	Published - 2012
Externally published	Yes

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@article{086be907043e468e8798f52a4ccb8dc9,

title = "Non-aqueous redox flow batteries with nickel and iron tris(2,2 ′-bipyridine) complex electrolyte",

abstract = "An organic redox flow battery adopting tris(2,2 ′- bipyridine)nickel(II)tetrafluoroborate (Ni(Bpy) 3(BF 4) 2) and tris(2,2 ′-bipyridine)iron(II) tetrafluoroborate (Fe(BPy) 3(BF 4) 2)) in propylenecarbonate electrolyte is investigated. With cyclic voltammetry, the redox current of one-electron related Fe(II)Fe(III) and two-electron related Ni(II)Ni(0) appears at 0.65 V and -1.66 V (vs. AgAg), respectively and their cycleabilities are highly stable during 100 cycles. Their charge-discharge characteristics on the carbon-felt electrodes are evaluated with 0.4 M Fe(Bpy) 3(BF 4) 2 and 0.2 M Ni(Bpy) 3(BF 4) 2 which are adopted as catholyte and anolyte. Comparing with the aqueous system, the higher cell voltage of 2.2 V was achieved and initial coulombic and energy efficiencies were reached with 90.4 and 81.8.",

author = "Junyoung Mun and Lee, \{Myung Jin\} and Park, \{Joung Won\} and Oh, \{Duk Jin\} and Lee, \{Doo Yeon\} and Doo, \{Seok Gwang\}",

year = "2012",

doi = "10.1149/2.033206esl",

language = "English",

volume = "15",

pages = "A80--A82",

journal = "Electrochemical and Solid-State Letters",

issn = "1099-0062",

publisher = "Electrochemical Society Inc.",

number = "6",

}

TY - JOUR

T1 - Non-aqueous redox flow batteries with nickel and iron tris(2,2 ′-bipyridine) complex electrolyte

AU - Mun, Junyoung

AU - Lee, Myung Jin

AU - Park, Joung Won

AU - Oh, Duk Jin

AU - Lee, Doo Yeon

AU - Doo, Seok Gwang

PY - 2012

Y1 - 2012

N2 - An organic redox flow battery adopting tris(2,2 ′- bipyridine)nickel(II)tetrafluoroborate (Ni(Bpy) 3(BF 4) 2) and tris(2,2 ′-bipyridine)iron(II) tetrafluoroborate (Fe(BPy) 3(BF 4) 2)) in propylenecarbonate electrolyte is investigated. With cyclic voltammetry, the redox current of one-electron related Fe(II)Fe(III) and two-electron related Ni(II)Ni(0) appears at 0.65 V and -1.66 V (vs. AgAg), respectively and their cycleabilities are highly stable during 100 cycles. Their charge-discharge characteristics on the carbon-felt electrodes are evaluated with 0.4 M Fe(Bpy) 3(BF 4) 2 and 0.2 M Ni(Bpy) 3(BF 4) 2 which are adopted as catholyte and anolyte. Comparing with the aqueous system, the higher cell voltage of 2.2 V was achieved and initial coulombic and energy efficiencies were reached with 90.4 and 81.8.

AB - An organic redox flow battery adopting tris(2,2 ′- bipyridine)nickel(II)tetrafluoroborate (Ni(Bpy) 3(BF 4) 2) and tris(2,2 ′-bipyridine)iron(II) tetrafluoroborate (Fe(BPy) 3(BF 4) 2)) in propylenecarbonate electrolyte is investigated. With cyclic voltammetry, the redox current of one-electron related Fe(II)Fe(III) and two-electron related Ni(II)Ni(0) appears at 0.65 V and -1.66 V (vs. AgAg), respectively and their cycleabilities are highly stable during 100 cycles. Their charge-discharge characteristics on the carbon-felt electrodes are evaluated with 0.4 M Fe(Bpy) 3(BF 4) 2 and 0.2 M Ni(Bpy) 3(BF 4) 2 which are adopted as catholyte and anolyte. Comparing with the aqueous system, the higher cell voltage of 2.2 V was achieved and initial coulombic and energy efficiencies were reached with 90.4 and 81.8.

UR - https://www.scopus.com/pages/publications/84860428485

U2 - 10.1149/2.033206esl

DO - 10.1149/2.033206esl

M3 - Article

AN - SCOPUS:84860428485

SN - 1099-0062

VL - 15

SP - A80-A82

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 6

ER -

Non-aqueous redox flow batteries with nickel and iron tris(2,2 ^′-bipyridine) complex electrolyte

Abstract

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