Improved electrochemical performance of lithium iron phosphate in situ coated with hierarchical porous nitrogen-doped graphene-like membrane

Yue Zhang; Yudai Huang; Xingchao Wang; Yong Guo; Dianzeng Jia; Xincun Tang

doi:10.1016/j.jpowsour.2015.11.092

Improved electrochemical performance of lithium iron phosphate in situ coated with hierarchical porous nitrogen-doped graphene-like membrane

Yue Zhang, Yudai Huang, Xingchao Wang, Yong Guo, Dianzeng Jia, Xincun Tang

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

LiFePO₄ in situ coated with hierarchical porous nitrogen-doped graphene-like membrane (HPNGM) composite derived from a electrospun polymer membrane (EPM) precursor has been achieved for the first time. The N-doped graphene-like membrane which is in situ coating on LiFePO₄ can provide a highly conductive layer, and the hierarchical porous structure facilitates Li⁺ transfer. The composite exhibits a high reversible capacity (171 mAh g^-1 at 0.1 C), excellent high-rate capability and cycling stability. In addition to construct the traditional structure of nanofiber or nanowire, the EPM can also form graphene-like structure after annealing, which is a new application in constructing sheet structure by electrospinning.

Original language	English
Pages (from-to)	122-127
Number of pages	6
Journal	Journal of Power Sources
Volume	305
DOIs	https://doi.org/10.1016/j.jpowsour.2015.11.092
State	Published - Feb 15 2016
Externally published	Yes

Scopus Subject Areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Keywords

Cathode material
Hierarchical porosity
High capacity
Lithium-ion batteries
Nitrogen-doped graphene-like membrane

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2015.11.092

Cite this

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title = "Improved electrochemical performance of lithium iron phosphate in situ coated with hierarchical porous nitrogen-doped graphene-like membrane",

abstract = "LiFePO4 in situ coated with hierarchical porous nitrogen-doped graphene-like membrane (HPNGM) composite derived from a electrospun polymer membrane (EPM) precursor has been achieved for the first time. The N-doped graphene-like membrane which is in situ coating on LiFePO4 can provide a highly conductive layer, and the hierarchical porous structure facilitates Li+ transfer. The composite exhibits a high reversible capacity (171 mAh g-1 at 0.1 C), excellent high-rate capability and cycling stability. In addition to construct the traditional structure of nanofiber or nanowire, the EPM can also form graphene-like structure after annealing, which is a new application in constructing sheet structure by electrospinning.",

keywords = "Cathode material, Hierarchical porosity, High capacity, Lithium-ion batteries, Nitrogen-doped graphene-like membrane",

author = "Yue Zhang and Yudai Huang and Xingchao Wang and Yong Guo and Dianzeng Jia and Xincun Tang",

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T1 - Improved electrochemical performance of lithium iron phosphate in situ coated with hierarchical porous nitrogen-doped graphene-like membrane

AU - Zhang, Yue

AU - Huang, Yudai

AU - Wang, Xingchao

AU - Guo, Yong

AU - Jia, Dianzeng

AU - Tang, Xincun

PY - 2016/2/15

Y1 - 2016/2/15

N2 - LiFePO4 in situ coated with hierarchical porous nitrogen-doped graphene-like membrane (HPNGM) composite derived from a electrospun polymer membrane (EPM) precursor has been achieved for the first time. The N-doped graphene-like membrane which is in situ coating on LiFePO4 can provide a highly conductive layer, and the hierarchical porous structure facilitates Li+ transfer. The composite exhibits a high reversible capacity (171 mAh g-1 at 0.1 C), excellent high-rate capability and cycling stability. In addition to construct the traditional structure of nanofiber or nanowire, the EPM can also form graphene-like structure after annealing, which is a new application in constructing sheet structure by electrospinning.

AB - LiFePO4 in situ coated with hierarchical porous nitrogen-doped graphene-like membrane (HPNGM) composite derived from a electrospun polymer membrane (EPM) precursor has been achieved for the first time. The N-doped graphene-like membrane which is in situ coating on LiFePO4 can provide a highly conductive layer, and the hierarchical porous structure facilitates Li+ transfer. The composite exhibits a high reversible capacity (171 mAh g-1 at 0.1 C), excellent high-rate capability and cycling stability. In addition to construct the traditional structure of nanofiber or nanowire, the EPM can also form graphene-like structure after annealing, which is a new application in constructing sheet structure by electrospinning.

KW - Cathode material

KW - Hierarchical porosity

KW - High capacity

KW - Lithium-ion batteries

KW - Nitrogen-doped graphene-like membrane

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U2 - 10.1016/j.jpowsour.2015.11.092

DO - 10.1016/j.jpowsour.2015.11.092

M3 - Article

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SN - 0378-7753

VL - 305

SP - 122

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JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Improved electrochemical performance of lithium iron phosphate in situ coated with hierarchical porous nitrogen-doped graphene-like membrane

Abstract

Scopus Subject Areas

Keywords

UN SDGs

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