Enhancement of First Cycle Coulombic Efficiency of Hard Carbon Derived from Eucalyptus in a Sodium Ion Battery

被引：13

作者：

Nakabayashi, Koji ^{[1
,2
]}

Yi, Hyeonseok ^{[1
]}

Ryu, Dong-Yeon ^{[1
]}

Chung, Dabin ^{[1
]}

Miyawaki, Jin ^{[1
,2
]}

Yoon, Seong-Ho ^{[1
,2
]}

机构：

[1] Kyushu Univ, Dept Appl Sci Elect & Mat, Kasuga, Fukuoka 8168580, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

CHEMISTRY LETTERS | 2019年 / 48卷 / 07期

关键词：

Sodium ion battery; Biomass; Eucalyptus wood; ELECTROCHEMICAL PERFORMANCE; ANODE MATERIALS; NANOFIBERS;

D O I：

10.1246/cl.190230

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 degrees C indicated the highest electrochemical properties such as discharge capacities and 1st cycle Coulombic efficiency. Especially, hard carbons heat treated above 1200 degrees C indicated above 80% of 1st cycle Coulombic efficiency which is relatively high.

引用

页码：753 / 755

页数：3

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