Enhancing the rate performance of graphite anodes through addition of natural graphite/carbon nanofibers in lithium-ion batteries

Tae Hwan Park; Jae Seong Yeo; Min Hyun Seo; Jin Miyawaki; Isao Mochida; Seong Ho Yoon

doi:10.1016/j.electacta.2012.12.124

Enhancing the rate performance of graphite anodes through addition of natural graphite/carbon nanofibers in lithium-ion batteries

Tae Hwan Park, Jae Seong Yeo, Min Hyun Seo, Jin Miyawaki, Isao Mochida, Seong Ho Yoon

Department of Advanced Device Materials

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

44 Citations (Scopus)

Abstract

Mesophase pitch-derived synthetic graphite was hybridized with natural graphite/carbon nanofiber (NG/CNF) composites prepared by mechanical mixing, carbonization, and graphitization processes. Addition of the NG/CNF composites introduced effective internal pores inside the synthetic graphite matrix, thereby improving the rate performance, 1st cycle coulombic efficiency, and cyclability. Hybridized graphite with 10 wt% of added NG/CNF composite exhibited the best rate performance, with a discharge capacity retention rate of over 90% after a 5 C discharge test.

Original language	English
Pages (from-to)	236-240
Number of pages	5
Journal	Electrochimica Acta
Volume	93
DOIs	https://doi.org/10.1016/j.electacta.2012.12.124
Publication status	Published - Mar 30 2013

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Electrochemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.electacta.2012.12.124

Cite this

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title = "Enhancing the rate performance of graphite anodes through addition of natural graphite/carbon nanofibers in lithium-ion batteries",

abstract = "Mesophase pitch-derived synthetic graphite was hybridized with natural graphite/carbon nanofiber (NG/CNF) composites prepared by mechanical mixing, carbonization, and graphitization processes. Addition of the NG/CNF composites introduced effective internal pores inside the synthetic graphite matrix, thereby improving the rate performance, 1st cycle coulombic efficiency, and cyclability. Hybridized graphite with 10 wt% of added NG/CNF composite exhibited the best rate performance, with a discharge capacity retention rate of over 90% after a 5 C discharge test.",

author = "Park, {Tae Hwan} and Yeo, {Jae Seong} and Seo, {Min Hyun} and Jin Miyawaki and Isao Mochida and Yoon, {Seong Ho}",

note = "Funding Information: This research was carried out using financial support from the Global-Center of Excellence (G-COE) in Novel Carbon Resource Sciences of Kyushu University and the ALCA program of JST. The authors sincerely appreciate the financial support.",

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AU - Park, Tae Hwan

AU - Yeo, Jae Seong

AU - Seo, Min Hyun

AU - Miyawaki, Jin

AU - Mochida, Isao

AU - Yoon, Seong Ho

N1 - Funding Information: This research was carried out using financial support from the Global-Center of Excellence (G-COE) in Novel Carbon Resource Sciences of Kyushu University and the ALCA program of JST. The authors sincerely appreciate the financial support.

PY - 2013/3/30

Y1 - 2013/3/30

N2 - Mesophase pitch-derived synthetic graphite was hybridized with natural graphite/carbon nanofiber (NG/CNF) composites prepared by mechanical mixing, carbonization, and graphitization processes. Addition of the NG/CNF composites introduced effective internal pores inside the synthetic graphite matrix, thereby improving the rate performance, 1st cycle coulombic efficiency, and cyclability. Hybridized graphite with 10 wt% of added NG/CNF composite exhibited the best rate performance, with a discharge capacity retention rate of over 90% after a 5 C discharge test.

AB - Mesophase pitch-derived synthetic graphite was hybridized with natural graphite/carbon nanofiber (NG/CNF) composites prepared by mechanical mixing, carbonization, and graphitization processes. Addition of the NG/CNF composites introduced effective internal pores inside the synthetic graphite matrix, thereby improving the rate performance, 1st cycle coulombic efficiency, and cyclability. Hybridized graphite with 10 wt% of added NG/CNF composite exhibited the best rate performance, with a discharge capacity retention rate of over 90% after a 5 C discharge test.

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Enhancing the rate performance of graphite anodes through addition of natural graphite/carbon nanofibers in lithium-ion batteries

Abstract

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