3D porous LiFePO 4/graphene hybrid cathodes with enhanced performance for Li-ion batteries

Jinli Yang; Jiajun Wang; Dongniu Wang; Xifei Li; Dongsheng Geng; Guoxian Liang; Michel Gauthier; Ruying Li; Xueliang Sun

doi:10.1016/j.jpowsour.2012.02.032

3D porous LiFePO ₄/graphene hybrid cathodes with enhanced performance for Li-ion batteries

Jinli Yang
, Jiajun Wang
, Dongniu Wang
, Xifei Li
, Dongsheng Geng
, Guoxian Liang
, Michel Gauthier
, Ruying Li
, Xueliang Sun^*

^*Corresponding author for this work

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

215 Scopus citations

Abstract

Three-dimensional porous self-assembled LiFePO ₄/graphene (LFP/G) composite was successfully fabricated using a facile template-free sol-gel approach. Graphene nanosheets were incorporated into the porous hierarchical network homogenously, which greatly enhances the electrical conductivity and efficient use of the LiFePO ₄ (LFP), leading to an outstanding electrochemical performance of the hybrid cathodes. The obtained LFP/G composite has a reversible capacity of 146 mAh g ^-1 at 17 mA g ^-1 after 100 cycles, which is more than 1.4 times higher than that of porous LFP (104 mAh g ^-1). Moreover, the porous LFP/G composite also exhibits a desirable tolerance to varied charge/discharge current densities.

Original language	English
Pages (from-to)	340-344
Number of pages	5
Journal	Journal of Power Sources
Volume	208
DOIs	https://doi.org/10.1016/j.jpowsour.2012.02.032
State	Published - 15 Jun 2012
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Graphene nanosheet
Hierarchical network
LiFePO
Lithium ion batteries

Access to Document

10.1016/j.jpowsour.2012.02.032

Cite this

@article{dd8b3553125148af8e3ee4e16cb2bcec,

title = "3D porous LiFePO 4/graphene hybrid cathodes with enhanced performance for Li-ion batteries",

abstract = "Three-dimensional porous self-assembled LiFePO 4/graphene (LFP/G) composite was successfully fabricated using a facile template-free sol-gel approach. Graphene nanosheets were incorporated into the porous hierarchical network homogenously, which greatly enhances the electrical conductivity and efficient use of the LiFePO 4 (LFP), leading to an outstanding electrochemical performance of the hybrid cathodes. The obtained LFP/G composite has a reversible capacity of 146 mAh g -1 at 17 mA g -1 after 100 cycles, which is more than 1.4 times higher than that of porous LFP (104 mAh g -1). Moreover, the porous LFP/G composite also exhibits a desirable tolerance to varied charge/discharge current densities.",

keywords = "Graphene nanosheet, Hierarchical network, LiFePO, Lithium ion batteries",

author = "Jinli Yang and Jiajun Wang and Dongniu Wang and Xifei Li and Dongsheng Geng and Guoxian Liang and Michel Gauthier and Ruying Li and Xueliang Sun",

year = "2012",

month = jun,

day = "15",

doi = "10.1016/j.jpowsour.2012.02.032",

language = "英语",

volume = "208",

pages = "340--344",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - 3D porous LiFePO 4/graphene hybrid cathodes with enhanced performance for Li-ion batteries

AU - Yang, Jinli

AU - Wang, Jiajun

AU - Wang, Dongniu

AU - Li, Xifei

AU - Geng, Dongsheng

AU - Liang, Guoxian

AU - Gauthier, Michel

AU - Li, Ruying

AU - Sun, Xueliang

PY - 2012/6/15

Y1 - 2012/6/15

N2 - Three-dimensional porous self-assembled LiFePO 4/graphene (LFP/G) composite was successfully fabricated using a facile template-free sol-gel approach. Graphene nanosheets were incorporated into the porous hierarchical network homogenously, which greatly enhances the electrical conductivity and efficient use of the LiFePO 4 (LFP), leading to an outstanding electrochemical performance of the hybrid cathodes. The obtained LFP/G composite has a reversible capacity of 146 mAh g -1 at 17 mA g -1 after 100 cycles, which is more than 1.4 times higher than that of porous LFP (104 mAh g -1). Moreover, the porous LFP/G composite also exhibits a desirable tolerance to varied charge/discharge current densities.

AB - Three-dimensional porous self-assembled LiFePO 4/graphene (LFP/G) composite was successfully fabricated using a facile template-free sol-gel approach. Graphene nanosheets were incorporated into the porous hierarchical network homogenously, which greatly enhances the electrical conductivity and efficient use of the LiFePO 4 (LFP), leading to an outstanding electrochemical performance of the hybrid cathodes. The obtained LFP/G composite has a reversible capacity of 146 mAh g -1 at 17 mA g -1 after 100 cycles, which is more than 1.4 times higher than that of porous LFP (104 mAh g -1). Moreover, the porous LFP/G composite also exhibits a desirable tolerance to varied charge/discharge current densities.

KW - Graphene nanosheet

KW - Hierarchical network

KW - LiFePO

KW - Lithium ion batteries

UR - https://www.scopus.com/pages/publications/84858727887

U2 - 10.1016/j.jpowsour.2012.02.032

DO - 10.1016/j.jpowsour.2012.02.032

M3 - 文章

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SN - 0378-7753

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SP - 340

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JO - Journal of Power Sources

JF - Journal of Power Sources

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