A tetradentate Ni(II) complex cation as a single redox couple for non-aqueous flow batteries

Hyun Seung Kim; Taeho Yoon; Jihyun Jang; Junyoung Mun; Hosang Park; Ji Heon Ryu; Seung M. Oh

doi:10.1016/j.jpowsour.2015.02.083

A tetradentate Ni(II) complex cation as a single redox couple for non-aqueous flow batteries

Hyun Seung Kim
, Taeho Yoon
, Jihyun Jang
, Junyoung Mun
, Hosang Park
, Ji Heon Ryu
, Seung M. Oh

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

40 Scopus citations

Abstract

Nickel(II)-1,4,8,11-tetraazacyclotetradecane is examined as a possible single redox couple for non-aqueous flow batteries. The nickel complex cation is reduced at -1.81 V (vs. Fc/Fc⁺) and oxidized at 0.74 V, showing that this tetradentate Ni(II) complex cation can be used as a single redox couple that offers a cell voltage of 2.55 V. The maximum solubility is 0.4 M in 1.0 M tetraethylammonium tetrafluoroborate dissolved in a mixed solvent of ethylene carbonate and propylene carbonate. When tested in a non-flowing cell, this single redox couple exhibits a very stable cycle performance.

Original language	English
Pages (from-to)	300-304
Number of pages	5
Journal	Journal of Power Sources
Volume	283
DOIs	https://doi.org/10.1016/j.jpowsour.2015.02.083
State	Published - 1 Jun 2015
Externally published	Yes

Keywords

Energy storage system
Metal complexes
Non-aqueous electrolytes
Redox-flow battery
Single redox couple

Access to Document

10.1016/j.jpowsour.2015.02.083

Cite this

@article{337f75fdb57b4e7ca33e793b3cd231f5,

title = "A tetradentate Ni(II) complex cation as a single redox couple for non-aqueous flow batteries",

abstract = "Nickel(II)-1,4,8,11-tetraazacyclotetradecane is examined as a possible single redox couple for non-aqueous flow batteries. The nickel complex cation is reduced at -1.81 V (vs. Fc/Fc+) and oxidized at 0.74 V, showing that this tetradentate Ni(II) complex cation can be used as a single redox couple that offers a cell voltage of 2.55 V. The maximum solubility is 0.4 M in 1.0 M tetraethylammonium tetrafluoroborate dissolved in a mixed solvent of ethylene carbonate and propylene carbonate. When tested in a non-flowing cell, this single redox couple exhibits a very stable cycle performance.",

keywords = "Energy storage system, Metal complexes, Non-aqueous electrolytes, Redox-flow battery, Single redox couple",

author = "Kim, \{Hyun Seung\} and Taeho Yoon and Jihyun Jang and Junyoung Mun and Hosang Park and Ryu, \{Ji Heon\} and Oh, \{Seung M.\}",

year = "2015",

month = jun,

day = "1",

doi = "10.1016/j.jpowsour.2015.02.083",

language = "English",

volume = "283",

pages = "300--304",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A tetradentate Ni(II) complex cation as a single redox couple for non-aqueous flow batteries

AU - Kim, Hyun Seung

AU - Yoon, Taeho

AU - Jang, Jihyun

AU - Mun, Junyoung

AU - Park, Hosang

AU - Ryu, Ji Heon

AU - Oh, Seung M.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Nickel(II)-1,4,8,11-tetraazacyclotetradecane is examined as a possible single redox couple for non-aqueous flow batteries. The nickel complex cation is reduced at -1.81 V (vs. Fc/Fc+) and oxidized at 0.74 V, showing that this tetradentate Ni(II) complex cation can be used as a single redox couple that offers a cell voltage of 2.55 V. The maximum solubility is 0.4 M in 1.0 M tetraethylammonium tetrafluoroborate dissolved in a mixed solvent of ethylene carbonate and propylene carbonate. When tested in a non-flowing cell, this single redox couple exhibits a very stable cycle performance.

AB - Nickel(II)-1,4,8,11-tetraazacyclotetradecane is examined as a possible single redox couple for non-aqueous flow batteries. The nickel complex cation is reduced at -1.81 V (vs. Fc/Fc+) and oxidized at 0.74 V, showing that this tetradentate Ni(II) complex cation can be used as a single redox couple that offers a cell voltage of 2.55 V. The maximum solubility is 0.4 M in 1.0 M tetraethylammonium tetrafluoroborate dissolved in a mixed solvent of ethylene carbonate and propylene carbonate. When tested in a non-flowing cell, this single redox couple exhibits a very stable cycle performance.

KW - Energy storage system

KW - Metal complexes

KW - Non-aqueous electrolytes

KW - Redox-flow battery

KW - Single redox couple

UR - https://www.scopus.com/pages/publications/84924077528

U2 - 10.1016/j.jpowsour.2015.02.083

DO - 10.1016/j.jpowsour.2015.02.083

M3 - Article

AN - SCOPUS:84924077528

SN - 0378-7753

VL - 283

SP - 300

EP - 304

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

A tetradentate Ni(II) complex cation as a single redox couple for non-aqueous flow batteries

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this