Preparation and characterization of high-rate and long-cycle LiFePO 4/C nanocomposite as cathode material for lithium-ion battery

Xingchao Wang; Yudai Huang; Dianzeng Jia; Zaiping Guo; Duo Ni; Ming Miao

doi:10.1007/s10008-010-1269-4

Preparation and characterization of high-rate and long-cycle LiFePO ₄/C nanocomposite as cathode material for lithium-ion battery

Xingchao Wang, Yudai Huang, Dianzeng Jia, Zaiping Guo, Duo Ni, Ming Miao

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

24 Citations (Scopus)

Abstract

Olivine LiFePO ₄/C nanocomposite cathode materials with small-sized particles and a unique electrochemical performance were successfully prepared by a simple solidstate reaction using oxalic acid and citric acid as the chelating reagent and carbon source. The structure and electrochemical properties of the samples were investigated. The results show that LiFePO ₄/C nanocomposite with oxalic acid (oxalic acid: Fe ₂₊=0.75:1) and a small quantity of citric acid are single phase and deliver initial discharge capacity of 122.1 mAh/g at 1 C with little capacity loss up to 500 cycles at room temperature. The rate capability and cyclability are also outstanding at elevated temperature. When charged/discharged at 60 °, this materials present excellent initial discharge capacity of 148.8 mAh/g at 1 C, 128.6 mAh/g at 5 C, and 115.0 mAh/g at 10 C, respectively. The extraordinarily high performance of LiFePO ₄/C cathode materials can be exploited suitably for practical lithium-ion batteries. © Springer-Verlag 2010.

Original language	English
Pages (from-to)	17-24
Journal	Journal of Solid State Electrochemistry
Volume	16
Issue number	1
DOIs	https://doi.org/10.1007/s10008-010-1269-4
Publication status	Published - Jan 2012
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

This work was supported by the Nature Science Foundation of Xinjiang Province (Grant Nos. 200821121 and 200821122), the National Natural Science Foundation of China (Grant Nos. 20866009 and 20861008), Technological People Service Corporation (2009GJG40028), and the Science and technology Foundation of Urumqi (y08231006).

Research Keywords

Cathode materials
High-rate
LiFePO 4/C nanocomposites
Lithium-ion battery
Long-cycle

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Cite this

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title = "Preparation and characterization of high-rate and long-cycle LiFePO 4/C nanocomposite as cathode material for lithium-ion battery",

abstract = "Olivine LiFePO 4/C nanocomposite cathode materials with small-sized particles and a unique electrochemical performance were successfully prepared by a simple solidstate reaction using oxalic acid and citric acid as the chelating reagent and carbon source. The structure and electrochemical properties of the samples were investigated. The results show that LiFePO 4/C nanocomposite with oxalic acid (oxalic acid: Fe 2+=0.75:1) and a small quantity of citric acid are single phase and deliver initial discharge capacity of 122.1 mAh/g at 1 C with little capacity loss up to 500 cycles at room temperature. The rate capability and cyclability are also outstanding at elevated temperature. When charged/discharged at 60 °, this materials present excellent initial discharge capacity of 148.8 mAh/g at 1 C, 128.6 mAh/g at 5 C, and 115.0 mAh/g at 10 C, respectively. The extraordinarily high performance of LiFePO 4/C cathode materials can be exploited suitably for practical lithium-ion batteries. {\textcopyright} Springer-Verlag 2010.",

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Preparation and characterization of high-rate and long-cycle LiFePO ₄/C nanocomposite as cathode material for lithium-ion battery. / Wang, Xingchao; Huang, Yudai; Jia, Dianzeng et al.
In: Journal of Solid State Electrochemistry, Vol. 16, No. 1, 01.2012, p. 17-24.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Preparation and characterization of high-rate and long-cycle LiFePO 4/C nanocomposite as cathode material for lithium-ion battery

AU - Wang, Xingchao

AU - Huang, Yudai

AU - Jia, Dianzeng

AU - Guo, Zaiping

AU - Ni, Duo

AU - Miao, Ming

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

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N2 - Olivine LiFePO 4/C nanocomposite cathode materials with small-sized particles and a unique electrochemical performance were successfully prepared by a simple solidstate reaction using oxalic acid and citric acid as the chelating reagent and carbon source. The structure and electrochemical properties of the samples were investigated. The results show that LiFePO 4/C nanocomposite with oxalic acid (oxalic acid: Fe 2+=0.75:1) and a small quantity of citric acid are single phase and deliver initial discharge capacity of 122.1 mAh/g at 1 C with little capacity loss up to 500 cycles at room temperature. The rate capability and cyclability are also outstanding at elevated temperature. When charged/discharged at 60 °, this materials present excellent initial discharge capacity of 148.8 mAh/g at 1 C, 128.6 mAh/g at 5 C, and 115.0 mAh/g at 10 C, respectively. The extraordinarily high performance of LiFePO 4/C cathode materials can be exploited suitably for practical lithium-ion batteries. © Springer-Verlag 2010.

AB - Olivine LiFePO 4/C nanocomposite cathode materials with small-sized particles and a unique electrochemical performance were successfully prepared by a simple solidstate reaction using oxalic acid and citric acid as the chelating reagent and carbon source. The structure and electrochemical properties of the samples were investigated. The results show that LiFePO 4/C nanocomposite with oxalic acid (oxalic acid: Fe 2+=0.75:1) and a small quantity of citric acid are single phase and deliver initial discharge capacity of 122.1 mAh/g at 1 C with little capacity loss up to 500 cycles at room temperature. The rate capability and cyclability are also outstanding at elevated temperature. When charged/discharged at 60 °, this materials present excellent initial discharge capacity of 148.8 mAh/g at 1 C, 128.6 mAh/g at 5 C, and 115.0 mAh/g at 10 C, respectively. The extraordinarily high performance of LiFePO 4/C cathode materials can be exploited suitably for practical lithium-ion batteries. © Springer-Verlag 2010.

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KW - LiFePO 4/C nanocomposites

KW - Lithium-ion battery

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