Electrospun pitch/polyacrylonitrile composite carbon nanofibers as high performance anodes for lithium-ion batteries

被引：43

作者：

Shi, Zhiqiang ^{[1
]}

Chong, Chuanbin ^{[1
]}

Wang, Jing ^{[1
]}

Wang, Chengyang ^{[2
]}

Yu, Xuewen ^{[1
]}

机构：

[1] Tianjin Polytech Univ, Coll Mat Sci & Engn, Lab Fiber Modificat & Funct Fiber, Tianjin 300387, Peoples R China

[2] Tianjin Univ, Key Lab Green Chem Technol, Minist Educ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 159卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Electrospinning; Carbon materials; Composite nanofibers; Energy storage and conversion; SODIUM; CAPACITY; MECHANISMS; NANOPORES; INSERTION;

D O I：

10.1016/j.matlet.2015.07.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new kind of soft carbon and hard carbon composite nanofibers were fabricated from isotropic pitch and polyacrylonitrile via simple electrospinning followed by stabilization and carbonization. The obtained fibrous mat was directly used as anodes of lithium-ion batteries without binder added and current collector. The composite nanofibers electrodes display a large reversible capacity of 452 mA h g(-1) at a current density of 20 mA g(-1) and a capacity of 255 mA h g(-1) at 200 mA g(-1) after 200 cycles. The improved electrochemical performance can be attributed to the unique fibrous structure which will facilitate electrons and ions transfer and the porous structure which will accommodate quantities of lithium ions. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：341 / 344

页数：4

共 15 条

[1] Characterisation of mesocarbon microbeads (MCMB) as active electrode material in lithium and sodium cells [J].