Effect of chitosan on deposition of LiCoO2 thin film for Li-ion batteries

C. T. Ni; K. Z. Fung

doi:10.1016/j.ssi.2009.02.029

Effect of chitosan on deposition of LiCoO₂ thin film for Li-ion batteries

C. T. Ni, K. Z. Fung

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

8 Citations (Scopus)

Abstract

Deposition of LiCoO₂ thin film using chitosan-added precursor solution was found to be a cost-effective way to fabricate cathode for Li-ion thin film batteries. The structures and electrochemical performance of such LiCoO₂ cathode were characterized by using an X-ray diffracotmeter (XRD), FTIR and charge-discharge tests. After annealing at ca. 500 °C, the results of XRD showed that the LiCoO₂ gel started to crystallize and showed hexagonal phase with a space group of R3̄m. The enhanced stability of the precursor solution by the addition of chitosan is attributed to the complexation between metal ions and the -NH₂ groups of chitosan.The electrochemical behaviour for the deposited films calcined at 700 °C for 4 h was also characterized by charge-discharge test. The result revealed that the film deposited from chitosan-containing precursor solution possesses an initial discharge capacity of 129 mAh g^{- 1}.

Original language	English
Pages (from-to)	900-903
Number of pages	4
Journal	Solid State Ionics
Volume	180
Issue number	11-13
DOIs	https://doi.org/10.1016/j.ssi.2009.02.029
Publication status	Published - 2009 Jun 22

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1016/j.ssi.2009.02.029

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title = "Effect of chitosan on deposition of LiCoO2 thin film for Li-ion batteries",

abstract = "Deposition of LiCoO2 thin film using chitosan-added precursor solution was found to be a cost-effective way to fabricate cathode for Li-ion thin film batteries. The structures and electrochemical performance of such LiCoO2 cathode were characterized by using an X-ray diffracotmeter (XRD), FTIR and charge-discharge tests. After annealing at ca. 500 °C, the results of XRD showed that the LiCoO2 gel started to crystallize and showed hexagonal phase with a space group of R{\=3}m. The enhanced stability of the precursor solution by the addition of chitosan is attributed to the complexation between metal ions and the -NH2 groups of chitosan.The electrochemical behaviour for the deposited films calcined at 700 °C for 4 h was also characterized by charge-discharge test. The result revealed that the film deposited from chitosan-containing precursor solution possesses an initial discharge capacity of 129 mAh g- 1.",

author = "Ni, {C. T.} and Fung, {K. Z.}",

note = "Funding Information: This work is supported by National Health Research Institutes (NHRI), Taiwan, under the grant No.NHRI-EX91-8924EL.",

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T1 - Effect of chitosan on deposition of LiCoO2 thin film for Li-ion batteries

AU - Ni, C. T.

AU - Fung, K. Z.

N1 - Funding Information: This work is supported by National Health Research Institutes (NHRI), Taiwan, under the grant No.NHRI-EX91-8924EL.

PY - 2009/6/22

Y1 - 2009/6/22

N2 - Deposition of LiCoO2 thin film using chitosan-added precursor solution was found to be a cost-effective way to fabricate cathode for Li-ion thin film batteries. The structures and electrochemical performance of such LiCoO2 cathode were characterized by using an X-ray diffracotmeter (XRD), FTIR and charge-discharge tests. After annealing at ca. 500 °C, the results of XRD showed that the LiCoO2 gel started to crystallize and showed hexagonal phase with a space group of R3̄m. The enhanced stability of the precursor solution by the addition of chitosan is attributed to the complexation between metal ions and the -NH2 groups of chitosan.The electrochemical behaviour for the deposited films calcined at 700 °C for 4 h was also characterized by charge-discharge test. The result revealed that the film deposited from chitosan-containing precursor solution possesses an initial discharge capacity of 129 mAh g- 1.

AB - Deposition of LiCoO2 thin film using chitosan-added precursor solution was found to be a cost-effective way to fabricate cathode for Li-ion thin film batteries. The structures and electrochemical performance of such LiCoO2 cathode were characterized by using an X-ray diffracotmeter (XRD), FTIR and charge-discharge tests. After annealing at ca. 500 °C, the results of XRD showed that the LiCoO2 gel started to crystallize and showed hexagonal phase with a space group of R3̄m. The enhanced stability of the precursor solution by the addition of chitosan is attributed to the complexation between metal ions and the -NH2 groups of chitosan.The electrochemical behaviour for the deposited films calcined at 700 °C for 4 h was also characterized by charge-discharge test. The result revealed that the film deposited from chitosan-containing precursor solution possesses an initial discharge capacity of 129 mAh g- 1.

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Effect of chitosan on deposition of LiCoO₂ thin film for Li-ion batteries

Abstract

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