Egg white derived carbon materials as an efficient sulfur host for high-performance lithium-sulfur batteries and its electrochemical properties

被引：12

作者：

Reddy, B. S. ^{[1
,2
]}

Premasudha, M. ^{[1
,2
]}

Oh, Kwang-Moon ^{[1
,2
]}

Reddy, N. S. ^{[3
]}

Ahn, Jou-Hyeon ^{[1
,2
,4
]}

Cho, Kwon-Koo ^{[1
,2
]}

机构：

[1] Gyeongsang Natl Univ, Dept Mat Engn & Convergence Technol, 501 Jinju Daero, Jinju 52828, South Korea

[2] Gyeongsang Natl Univ, Res Inst Green Energy Convergence Technol, 501 Jinju Daero, Jinju 52828, South Korea

[3] Gyeongsang Natl Univ, Engn Res Inst, Sch Mat Sci & Engn, 501 Jinju Daero, Jinju 52828, South Korea

[4] Gyeongsang Natl Univ, Dept Chem Engn, 501 Jinju Daero, Jinju 52828, South Korea

来源：

MATERIALS RESEARCH BULLETIN | 2021年 / 140卷

基金：

新加坡国家研究基金会;

关键词：

Cheese-like carbon; Egg white; Sulfur; Lithium-sulfur batteries; HIERARCHICAL POROUS CARBON; SEPARATOR; CATHODES; MATRIX; SHELL;

D O I：

10.1016/j.materresbull.2021.111310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lithium-sulfur (Li-S) batteries are attractive and prominent power sources due to high theoretical capacity and the availability of sulfur at a low price. However, sulfur has limitations such as the formation of polysulfides and low conductivity. To overcome these problems, we prepared a cheese-like carbon (CLC) using a simple annealing process from an egg white. The as-prepared carbon material contains NaCl and KCl compounds. The CLC with nanoholes were formed after cleaning with distilled water and ethanol several times. The prepared CLC had a strong polysulfide capturing ability, high conductivity, a large surface area, and high catalytic activity. To prepare the CLC/S composite, sulfur was added by the melt diffusion method. CLC/S cathode material exhibited a high initial capacity of nearly 1420 mA h g(-1) at 0.1 C and excellent rate capability with a low capacity-fading rate. The present work revealed that CLC/S cathodes are potential candidate cathodes for Li-S batteries.

引用

页数：6

共 30 条

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