Facile approach to prepare FeP2/P/C nanofiber heterostructure via electrospinning as highly performance self-supporting anode for Li/Na ion batteries

Zhan，Li1; Song，Xinghao1; Deng，Wei1; Wei，Tongye1; Huang，Li4,5,6; Wei，Xiaolin2,3; Wang，Chengxin1

2022-01-20

10.1016/j.electacta.2021.139682

ELECTROCHIMICA ACTA   影响因子和分区

0013-4686

1873-3859

FeP and P are promising anode material for lithium and sodium ion storage, due to the high theoretical capacity. However, poor electric conductivity and severe volume expansion limit its actual performance. Herein, we prepared a flexible self-supporting anode material which is consist of FeP, P and C heterostructure nanofibers with diameter of 150.0–200.0 nm named FeP@CNs-700. Here, well-dispersed FeP nanoparticles and amorphous phosphorus are confined in carbon nanofiber skeleton, which enhance the material's electron/ion transport and structure stability. As a result, The FeP@CNs-700 exhibits a high capacity (1132.2 mAh g at 0.1 A g for lithium ion batteries, 680.8 mAh g at 0.1 A g for sodium ion batteries), excellent cycle stability (a capacity retention of 84.6% at 0.5 A g after 500 cycles for LIBs, 300.1 mAh g at 1.0 A g after 400 cycles for SIBs), outstanding rate performance (461.2/227.9 mAh g at high current density of 10.0 A g for Li/Na-ion battery, respectively) and high initial coulombic efficiency (87.3% for LIBs and 74.5% for SIBs), indicating a promising candidate for high capacity anodes.

Electrospinning FeP2 Initial coulombic efficiency Li/Na ion battery Self-supported anode

SCI ; EI

英语

其他

National Natural Science Foun-dation of China[11774298] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001]

Electrochemistry

Electrochemistry

WOS:000784292300001

PERGAMON-ELSEVIER SCIENCE LTD

20215011328032

Anodes ; Carbon nanofibers ; Efficiency ; Electrospinning ; Lithium compounds ; Lithium-ion batteries ; Metal ions ; Phosphorus compounds ; Sodium compounds ; Sodium-ion batteries

Metallurgy:531.1 ; Secondary Batteries:702.1.2 ; Electron Tubes:714.1 ; Nanotechnology:761 ; Fiber Chemistry and Processing:819.3 ; Production Engineering:913.1 ; Solid State Physics:933

CHEMISTRY

2-s2.0-85120969186

Scopus

1.Hunan Institute of Advanced Sensing and Information Technology,Xiangtan University,Xiang Tan,411105,China
2.School of Physics and Optoelectronics,Xiangtan University,Xiang Tan,411105,China
3.School of Physics and Electronic Engineering,Heng Yang Normal University,Heng Yang,421008,China
4.Shenzhen Key Laboratory of Solid State Batteries,Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
5.Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,518055,China
6.Department of Physics,Southen University of Science and Technology,Shenzhen,518055,China

Zhan，Li,Song，Xinghao,Deng，Wei,et al. Facile approach to prepare FeP2/P/C nanofiber heterostructure via electrospinning as highly performance self-supporting anode for Li/Na ion batteries[J]. ELECTROCHIMICA ACTA,2022,403.

Zhan，Li.,Song，Xinghao.,Deng，Wei.,Wei，Tongye.,Huang，Li.,...&Wang，Chengxin.(2022).Facile approach to prepare FeP2/P/C nanofiber heterostructure via electrospinning as highly performance self-supporting anode for Li/Na ion batteries.ELECTROCHIMICA ACTA,403.

Zhan，Li,et al."Facile approach to prepare FeP2/P/C nanofiber heterostructure via electrospinning as highly performance self-supporting anode for Li/Na ion batteries".ELECTROCHIMICA ACTA 403(2022).