Enhancement of first cycle coulombic efficiency of hard carbon derived from Eucalyptus in a sodium ion battery

Koji Nakabayashi; Hyeonseok Yi; Dong Yeon Ryu; Dabin Chung; Jin Miyawaki; Seong Ho Yoon

doi:10.1246/cl.190230

Enhancement of first cycle coulombic efficiency of hard carbon derived from Eucalyptus in a sodium ion battery

Koji Nakabayashi, Hyeonseok Yi, Dong Yeon Ryu, Dabin Chung, Jin Miyawaki, Seong Ho Yoon

Department of Advanced Device Materials

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

6 Citations (Scopus)

Abstract

Hard carbon derived from green Eucalyptus trees from Ethiopia was developed to enhance 1st cycle Coulombic efficiency as the anode for SIBs. Different heat treatment temperatures were applied for preparing hard carbon from Eucalyptus wood to form suitable disordered carbon structure, interlayer space, and effective pores. Hard carbon heat-treated at 1400 °C indicated the highest electrochemical properties such as discharge capacities and 1st cycle Coulombic efficiency. Especially, hard carbons heat treated above 1200 °C indicated above 80% of 1st cycle Coulombic efficiency which is relatively high.

Original language	English
Pages (from-to)	753-755
Number of pages	3
Journal	Chemistry Letters
Volume	48
Issue number	7
DOIs	https://doi.org/10.1246/cl.190230
Publication status	Published - 2019

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/cl.190230

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abstract = "Hard carbon derived from green Eucalyptus trees from Ethiopia was developed to enhance 1st cycle Coulombic efficiency as the anode for SIBs. Different heat treatment temperatures were applied for preparing hard carbon from Eucalyptus wood to form suitable disordered carbon structure, interlayer space, and effective pores. Hard carbon heat-treated at 1400 °C indicated the highest electrochemical properties such as discharge capacities and 1st cycle Coulombic efficiency. Especially, hard carbons heat treated above 1200 °C indicated above 80% of 1st cycle Coulombic efficiency which is relatively high.",

author = "Koji Nakabayashi and Hyeonseok Yi and Ryu, {Dong Yeon} and Dabin Chung and Jin Miyawaki and Yoon, {Seong Ho}",

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AU - Nakabayashi, Koji

AU - Yi, Hyeonseok

AU - Ryu, Dong Yeon

AU - Chung, Dabin

AU - Miyawaki, Jin

AU - Yoon, Seong Ho

PY - 2019

Y1 - 2019

N2 - Hard carbon derived from green Eucalyptus trees from Ethiopia was developed to enhance 1st cycle Coulombic efficiency as the anode for SIBs. Different heat treatment temperatures were applied for preparing hard carbon from Eucalyptus wood to form suitable disordered carbon structure, interlayer space, and effective pores. Hard carbon heat-treated at 1400 °C indicated the highest electrochemical properties such as discharge capacities and 1st cycle Coulombic efficiency. Especially, hard carbons heat treated above 1200 °C indicated above 80% of 1st cycle Coulombic efficiency which is relatively high.

AB - Hard carbon derived from green Eucalyptus trees from Ethiopia was developed to enhance 1st cycle Coulombic efficiency as the anode for SIBs. Different heat treatment temperatures were applied for preparing hard carbon from Eucalyptus wood to form suitable disordered carbon structure, interlayer space, and effective pores. Hard carbon heat-treated at 1400 °C indicated the highest electrochemical properties such as discharge capacities and 1st cycle Coulombic efficiency. Especially, hard carbons heat treated above 1200 °C indicated above 80% of 1st cycle Coulombic efficiency which is relatively high.

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Enhancement of first cycle coulombic efficiency of hard carbon derived from Eucalyptus in a sodium ion battery

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