Development of carbon composite bipolar plates for vanadium redox flow batteries

Nam Jin Lee, Seung Wook Lee, Ki Jae Kim, Jae Hun Kim, Min Sik Park, Goojin Jeong, Young Jun Kim, Dong Jin Byun

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Carbon composite bipolar plates with various carbon black contents were prepared by a compression molding method. The electrical conductivity and electrochemical stability of the bipolar plates have been evaluated. It is found that the electrical conductivity increases with increasing carbon black contents up to 15 wt %. When the carbon black contents are greater than 15 wt %, the electrical conductivity decreases because of a poor compatibility between epoxy resin and carbon black, and a weakening of compaction in the carbon composite bipolar plate. Based on the results, it could be concluded that there are optimum carbon black contents when preparing the carbon composite bipolar plate. Corrosion tests show that the carbon composite bipolar plate with 15 wt % carbon black exhibits better electrochemical stability than a graphite bipolar plate under a highly acidic condition. When the optimized carbon composite bipolar plate is applied to vanadium redox flow cells, the performance of flow cells with the carbon composite bipolar plate is comparable to that of flow cells with the graphite bipolar plate.

Original languageEnglish
Pages (from-to)3589-3592
Number of pages4
JournalBulletin of the Korean Chemical Society
Volume33
Issue number11
DOIs
Publication statusPublished - 2012 Nov 20

Fingerprint

Soot
Vanadium
Carbon
Composite materials
Graphite
Epoxy Resins
Compression molding
Flow batteries
Compaction
Corrosion
Electric Conductivity

Keywords

  • Bipolar plate
  • Carbon composite
  • Electrical conductivity
  • Electrochemical stability
  • Redox flow battery

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Development of carbon composite bipolar plates for vanadium redox flow batteries. / Lee, Nam Jin; Lee, Seung Wook; Kim, Ki Jae; Kim, Jae Hun; Park, Min Sik; Jeong, Goojin; Kim, Young Jun; Byun, Dong Jin.

In: Bulletin of the Korean Chemical Society, Vol. 33, No. 11, 20.11.2012, p. 3589-3592.

Research output: Contribution to journalArticle

Lee, Nam Jin ; Lee, Seung Wook ; Kim, Ki Jae ; Kim, Jae Hun ; Park, Min Sik ; Jeong, Goojin ; Kim, Young Jun ; Byun, Dong Jin. / Development of carbon composite bipolar plates for vanadium redox flow batteries. In: Bulletin of the Korean Chemical Society. 2012 ; Vol. 33, No. 11. pp. 3589-3592.
@article{ae4e8d49b107400b8f47642358f4e25e,
title = "Development of carbon composite bipolar plates for vanadium redox flow batteries",
abstract = "Carbon composite bipolar plates with various carbon black contents were prepared by a compression molding method. The electrical conductivity and electrochemical stability of the bipolar plates have been evaluated. It is found that the electrical conductivity increases with increasing carbon black contents up to 15 wt {\%}. When the carbon black contents are greater than 15 wt {\%}, the electrical conductivity decreases because of a poor compatibility between epoxy resin and carbon black, and a weakening of compaction in the carbon composite bipolar plate. Based on the results, it could be concluded that there are optimum carbon black contents when preparing the carbon composite bipolar plate. Corrosion tests show that the carbon composite bipolar plate with 15 wt {\%} carbon black exhibits better electrochemical stability than a graphite bipolar plate under a highly acidic condition. When the optimized carbon composite bipolar plate is applied to vanadium redox flow cells, the performance of flow cells with the carbon composite bipolar plate is comparable to that of flow cells with the graphite bipolar plate.",
keywords = "Bipolar plate, Carbon composite, Electrical conductivity, Electrochemical stability, Redox flow battery",
author = "Lee, {Nam Jin} and Lee, {Seung Wook} and Kim, {Ki Jae} and Kim, {Jae Hun} and Park, {Min Sik} and Goojin Jeong and Kim, {Young Jun} and Byun, {Dong Jin}",
year = "2012",
month = "11",
day = "20",
doi = "10.5012/bkcs.2012.33.11.3589",
language = "English",
volume = "33",
pages = "3589--3592",
journal = "Bulletin of the Korean Chemical Society",
issn = "0253-2964",
publisher = "Wiley-Blackwell",
number = "11",

}

TY - JOUR

T1 - Development of carbon composite bipolar plates for vanadium redox flow batteries

AU - Lee, Nam Jin

AU - Lee, Seung Wook

AU - Kim, Ki Jae

AU - Kim, Jae Hun

AU - Park, Min Sik

AU - Jeong, Goojin

AU - Kim, Young Jun

AU - Byun, Dong Jin

PY - 2012/11/20

Y1 - 2012/11/20

N2 - Carbon composite bipolar plates with various carbon black contents were prepared by a compression molding method. The electrical conductivity and electrochemical stability of the bipolar plates have been evaluated. It is found that the electrical conductivity increases with increasing carbon black contents up to 15 wt %. When the carbon black contents are greater than 15 wt %, the electrical conductivity decreases because of a poor compatibility between epoxy resin and carbon black, and a weakening of compaction in the carbon composite bipolar plate. Based on the results, it could be concluded that there are optimum carbon black contents when preparing the carbon composite bipolar plate. Corrosion tests show that the carbon composite bipolar plate with 15 wt % carbon black exhibits better electrochemical stability than a graphite bipolar plate under a highly acidic condition. When the optimized carbon composite bipolar plate is applied to vanadium redox flow cells, the performance of flow cells with the carbon composite bipolar plate is comparable to that of flow cells with the graphite bipolar plate.

AB - Carbon composite bipolar plates with various carbon black contents were prepared by a compression molding method. The electrical conductivity and electrochemical stability of the bipolar plates have been evaluated. It is found that the electrical conductivity increases with increasing carbon black contents up to 15 wt %. When the carbon black contents are greater than 15 wt %, the electrical conductivity decreases because of a poor compatibility between epoxy resin and carbon black, and a weakening of compaction in the carbon composite bipolar plate. Based on the results, it could be concluded that there are optimum carbon black contents when preparing the carbon composite bipolar plate. Corrosion tests show that the carbon composite bipolar plate with 15 wt % carbon black exhibits better electrochemical stability than a graphite bipolar plate under a highly acidic condition. When the optimized carbon composite bipolar plate is applied to vanadium redox flow cells, the performance of flow cells with the carbon composite bipolar plate is comparable to that of flow cells with the graphite bipolar plate.

KW - Bipolar plate

KW - Carbon composite

KW - Electrical conductivity

KW - Electrochemical stability

KW - Redox flow battery

UR - http://www.scopus.com/inward/record.url?scp=84870048041&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870048041&partnerID=8YFLogxK

U2 - 10.5012/bkcs.2012.33.11.3589

DO - 10.5012/bkcs.2012.33.11.3589

M3 - Article

AN - SCOPUS:84870048041

VL - 33

SP - 3589

EP - 3592

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

SN - 0253-2964

IS - 11

ER -