Robust spindle-structured FeP@C for high-performance alkali-ion batteries anode

时间:2019-07-04作者:浏览量:431


Robust spindle-structured FeP@C for high-performance alkali-ion batteries anode

作者:Xu, XJ (Xu, Xijun)[ 1 ] ; Feng, JR (Feng, Jianrui)[ 3 ] ; Liu, J (Liu, Jun)[ 1 ] ; Lv, F (Lv, Fan)[ 4 ] ; Hu, RZ (Hu, Renzong)[ 1 ] ; Fang, F (Fang, Fang)[ 2 ] ; Yang, LC (Yang, Lichun)[ 1 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1 ] ; Zhu, M (Zhu, Min)[ 1 ]


ELECTROCHIMICA ACTA


卷: 312  页: 224-233

DOI: 10.1016/j.electacta.2019.04.149


出版年: JUL 20 2019


文献类型:Article


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摘要

To solve the agglomeration of Fe and low electronic conductivity of FeP anode, a simple route through metal organic framework (MOF)-derived phosphorization has been successfully explored for in situ encapsulation of FeP nanoparticles in porous carbon framework (FeP@C). The MOF-derived FeP@C anode can substantially inhibit the coarsening of small Fe, improve the electroconductivity and moderate the volume expansion of electrode, leading to superior rate capability and excellent cycling performance for Li-, Na- and K-ions storage. For example, the FeP@C anode delivers a high reversible capacity of 700 mAh g(-1) at 0.1 A g(-1) over 180 cycles for Li-ion batteries, displays a high reversible capacity of 387 mAh g(-1) at 0.1 A g(-1) over 100 cycles for Na-ion batteries and achieve a high reversible capacity of 163 mAh g(-1) at 0.2 A g(-1) over 100 cycles for K-ion batteries. The kinetic analysis, calculated diffusion coefficient and partial density of states (PDOS) results also confirmed this in-situ carbon encapsulated strategy improves the conductivity of FeP particles facilitating the alkali-ion/electron's transportation. (C) 2019 Elsevier Ltd. All rights reserved.


关键词

作者关键词:Metal organic frameworks; Iron phosphide; Superior rate capability; Alkali-ion batteries; Carbon-encapsulation


KeyWords Plus:REDUCED GRAPHENE OXIDE; LONG-LIFE ANODES; LITHIUM-ION; HIGH-CAPACITY; STABLE ANODE; STORAGE; NANOCOMPOSITE; PHOSPHIDES; MICROCUBES; COMPOSITE


作者信息

通讯作者地址: Liu, J (通讯作者)


显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.

通讯作者地址: Fang, F (通讯作者)

显示更多Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China.

地址:


[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China

[ 2 ] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

[ 3 ] Westlake Univ, Westlake Inst Adv Study, Hangzhou 310064, Zhejiang, Peoples R China

[ 4 ] Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China

电子邮件地址:msjliu@scut.edu.cn; f_fang@fudan.edu.cn


基金资助致谢

基金资助机构授权号

1000 plan from Chinese Government  

Guangzhou Science and Technology Plan Projects

201804010104 

Project of Public Interest Research and Capacity Building of Guangdong Province

2017A010104004 

National Natural Science Foundation of China

51771076 

Foundation for Innovative Research Groups of the National Natural Science Foundation of China

51621001 

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出版商

PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND


期刊信息

Impact Factor (影响因子): Journal Citation Reports

类别 / 分类

研究方向:Electrochemistry


Web of Science 类别:Electrochemistry


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