Three-dimensional Tremella-like FeS/C structure under pseudocapacitance as anode for high-performance sodium-ion batteries

被引：4

作者：

Xu, Huimin ^{[1
]}

Cui, Yongli ^{[1
,2
]}

Wang, Jian ^{[1
]}

Shi, Yueli ^{[1
]}

Ju, Zhicheng ^{[1
]}

Cui, Yanhua ^{[2
]}

Zhuang, Quanchao ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Mat Sci & Engn, Liion Batteries Lab, Xuzhou 221116, Jiangsu, Peoples R China

[2] China Acad Engn Phys, Inst Elect Engn, Mianyang 621000, Sichuan, Peoples R China

来源：

MATERIALS LETTERS | 2021年 / 293卷

关键词：

Sodium-ion battery; FeS/C; Energy storage and conversion; Microstructure; Pseudocapacitive; HIGH-CAPACITY; LITHIUM; CARBON;

D O I：

10.1016/j.matlet.2021.129727

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, a simple experimental method one-step hydrothermal method is made to prepare tremellalike FeS anchored into three-dimensional carbon (FeS/C) and get substantial progress in electrochemical properties and microstructure. The unique tremella-like structure is formed by the self-assembly of layered FeS/C, which would make the contact between the active material and the electrolyte sufficient, and maintain pronounced electrochemical performance. The studies show that the FeS/C synthesized is mainly dominated by the pseudocapacitive behavior in the electrochemical reaction processes, leading to fast the electrode reaction kinetics. The FeS/C anode also exhibits a large initial capacity of 619 mAh g(-1) and remains 410.5 mAh g(-1) with excellent rate performances. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：4

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