Influence of oxyfluorinated graphite on fluorinated ethylene–propylene composites as bipolar plates

Lee Moon Hee (이문희); Kim Ho Young (김호영); Kim Ji Wook (김지욱); Han Joong Tark (한중탁); Lee, Young-Seak (이영석); Woo Jong Seok (우종석)

doi:10.1007/s42823-019-00103-2

Influence of oxyfluorinated graphite on fluorinated ethylene–propylene composites as bipolar plates

Carbon Letters
Abbr : Carbon Lett.
2020, 30(3), pp.345-352
DOI : 10.1007/s42823-019-00103-2
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : July 11, 2019
Accepted : October 22, 2019
Published : June 1, 2020

Lee Moon Hee ¹, Kim Ho Young ², Kim Ji Wook ³, Han Joong Tark ⁴, Lee, Young-Seak ³, Woo Jong Seok ¹

¹모건 어드밴스드 매터리얼
²성균관대학교
³충남대학교
⁴한국전기연구원

Accredited

ABSTRACT

Numerous studies have reported that good adhesion and fuorination of carbon materials in a fuoropolymer matrix enhance their electrical and mechanical properties. However, a composite reinforced with oxyfuorinated graphite has not been reported for improving mechanical properties. This paper discusses the fabrication of conductive fuorinated ethylene–pro�pylene (FEP)/oxyfuorinated graphite (f-graphite) composite bipolar plates (BPs) via compression molding. To investigate the efects of fuorinating graphite, graphite with a large particle size of 500 μm was mixed with FEP powder with a small particle size of 8 μm through ball milling. The FEP/graphite composites exhibited high anisotropic electrical conductivity with the in-plane conductivity much higher than the through-plane conductivity because of the planar orientation of the graphite sheets. Therefore, the mechanical properties of the composites such as fexural strength tended to deteriorate with increasing graphite content. In particular, the FEP/f-graphite composites exhibited excellent fexural strength of 12 MPa, much higher than that of FEP/graphite composites at 9 MPa with a graphite content of 80 wt%. The interfacial interaction between FEP and f-graphite led to improved physical compatibilization, which contributed to enhance the mechanical properties of these composites. Our results are a step toward developing BPs for use in high-temperature fuel cells and heat-sink components. Graphic abstract

KEYWORDS

Fluorinated graphite · Fluorinated ethylene–propylene · Compression molding · Bipolar plates · Fuel cell

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (18) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (19) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Influence of oxyfluorinated graphite on fluorinated ethylene–propylene composites as bipolar plates

ABSTRACT

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Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (18) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (19) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Influence of oxyfluorinated graphite on fluorinated ethylene–propylene composites as bipolar plates

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KEYWORDS

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KCI Citation Counts (7)

WoS Citation Counts (11) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (18) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (19) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

REFERENCES (34) * References for papers published after 2023 are currently being built.

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

* References for papers published after 2023 are currently being built.