Synthesis and electrochemical characterization of xLi(Ni 0.8Co0.15Mg0.05)O2-(1-x)Li[Li 1/3Mn2/3]O2 (0.0 ≤ x ≤ 1.0) cathodes for Li rechargeable batteries

A. Pramanik; C. Ghanty; S. B. Majumder

doi:10.1016/j.solidstatesciences.2010.07.033

Synthesis and electrochemical characterization of xLi(Ni _0.8Co_0.15Mg_0.05)O₂-(1-x)Li[Li _1/3Mn_2/3]O₂ (0.0 ≤ x ≤ 1.0) cathodes for Li rechargeable batteries

A. Pramanik, C. Ghanty, S. B. Majumder

Indian Institute of Technology Kharagpur

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

11 Scopus citations

Abstract

Using solution based processing route, we have successfully synthesized xLi(Ni_0.8Co_0.15Mg_0.05)O₂-(1-x) Li[Li_1/3Mn_2/3]O₂ (0.0 ≤ x ≤ 1.0) cathode materials for lithium rechargeable batteries. The phase formation behavior of these cathode materials is characterized by X-ray diffraction measurements. The Galvanostatic charge-discharge characteristic of these cathodes is reported in various cut-off voltage limits. When these composite cathodes are charged to 4.8 V, electrochemical extraction of lithium takes place from active (Li[Ni _0.8Co_0.15Mg_0.05]O₂) as well as inactive (Li[Li_1/3Mn_2/3]O₂) components. Good cycleability of these cathodes is obtained when cycled in the cut-off voltage limits of 4.6-3.0 V. The cycleability of these cathodes are deteriorated when charged above 4.8 V and deep discharged up to 1.2 V followed by repeated cycling in these voltage limits. Based on the analyses of impedance spectra at various charge and discharge states, the probable reasons for such findings are discussed.

Original language	English
Pages (from-to)	1797-1802
Number of pages	6
Journal	Solid State Sciences
Volume	12
Issue number	10
DOIs	https://doi.org/10.1016/j.solidstatesciences.2010.07.033
State	Published - Oct 2010
Externally published	Yes

Bibliographical note

Funding Information:
The research work was partially supported by the research grants from the Council of Scientific and Industrial Research (CSIR), Govt. of India vide their grant 80(0066)/06/EMR-II . One of the authors (Mr. C. Ghanty) would also like to acknowledge CSIR for providing him a Junior Research Fellowship. The authors would like to thank SPECLAB, University of Puerto Rico, San Juan, USA for the coin cell fabrication and some electrochemical measurements. We would also like to thank Dr. S. Sivaprakash for many fruitful discussions.

Funding

The research work was partially supported by the research grants from the Council of Scientific and Industrial Research (CSIR), Govt. of India vide their grant 80(0066)/06/EMR-II . One of the authors (Mr. C. Ghanty) would also like to acknowledge CSIR for providing him a Junior Research Fellowship. The authors would like to thank SPECLAB, University of Puerto Rico, San Juan, USA for the coin cell fabrication and some electrochemical measurements. We would also like to thank Dr. S. Sivaprakash for many fruitful discussions.

Funders	Funder number
Bangladesh Council of Scientific and Industrial Research

Keywords

Cathode material
Chemical synthesis
Electrochemical properties
Impedance spectroscopy
Lithium ion battery

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

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10.1016/j.solidstatesciences.2010.07.033

Cite this

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title = "Synthesis and electrochemical characterization of xLi(Ni 0.8Co0.15Mg0.05)O2-(1-x)Li[Li 1/3Mn2/3]O2 (0.0 ≤ x ≤ 1.0) cathodes for Li rechargeable batteries",

abstract = "Using solution based processing route, we have successfully synthesized xLi(Ni0.8Co0.15Mg0.05)O2-(1-x) Li[Li1/3Mn2/3]O2 (0.0 ≤ x ≤ 1.0) cathode materials for lithium rechargeable batteries. The phase formation behavior of these cathode materials is characterized by X-ray diffraction measurements. The Galvanostatic charge-discharge characteristic of these cathodes is reported in various cut-off voltage limits. When these composite cathodes are charged to 4.8 V, electrochemical extraction of lithium takes place from active (Li[Ni 0.8Co0.15Mg0.05]O2) as well as inactive (Li[Li1/3Mn2/3]O2) components. Good cycleability of these cathodes is obtained when cycled in the cut-off voltage limits of 4.6-3.0 V. The cycleability of these cathodes are deteriorated when charged above 4.8 V and deep discharged up to 1.2 V followed by repeated cycling in these voltage limits. Based on the analyses of impedance spectra at various charge and discharge states, the probable reasons for such findings are discussed.",

keywords = "Cathode material, Chemical synthesis, Electrochemical properties, Impedance spectroscopy, Lithium ion battery",

author = "A. Pramanik and C. Ghanty and Majumder, {S. B.}",

note = "Funding Information: The research work was partially supported by the research grants from the Council of Scientific and Industrial Research (CSIR), Govt. of India vide their grant 80(0066)/06/EMR-II . One of the authors (Mr. C. Ghanty) would also like to acknowledge CSIR for providing him a Junior Research Fellowship. The authors would like to thank SPECLAB, University of Puerto Rico, San Juan, USA for the coin cell fabrication and some electrochemical measurements. We would also like to thank Dr. S. Sivaprakash for many fruitful discussions.",

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AU - Pramanik, A.

AU - Ghanty, C.

AU - Majumder, S. B.

N1 - Funding Information: The research work was partially supported by the research grants from the Council of Scientific and Industrial Research (CSIR), Govt. of India vide their grant 80(0066)/06/EMR-II . One of the authors (Mr. C. Ghanty) would also like to acknowledge CSIR for providing him a Junior Research Fellowship. The authors would like to thank SPECLAB, University of Puerto Rico, San Juan, USA for the coin cell fabrication and some electrochemical measurements. We would also like to thank Dr. S. Sivaprakash for many fruitful discussions.

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N2 - Using solution based processing route, we have successfully synthesized xLi(Ni0.8Co0.15Mg0.05)O2-(1-x) Li[Li1/3Mn2/3]O2 (0.0 ≤ x ≤ 1.0) cathode materials for lithium rechargeable batteries. The phase formation behavior of these cathode materials is characterized by X-ray diffraction measurements. The Galvanostatic charge-discharge characteristic of these cathodes is reported in various cut-off voltage limits. When these composite cathodes are charged to 4.8 V, electrochemical extraction of lithium takes place from active (Li[Ni 0.8Co0.15Mg0.05]O2) as well as inactive (Li[Li1/3Mn2/3]O2) components. Good cycleability of these cathodes is obtained when cycled in the cut-off voltage limits of 4.6-3.0 V. The cycleability of these cathodes are deteriorated when charged above 4.8 V and deep discharged up to 1.2 V followed by repeated cycling in these voltage limits. Based on the analyses of impedance spectra at various charge and discharge states, the probable reasons for such findings are discussed.

AB - Using solution based processing route, we have successfully synthesized xLi(Ni0.8Co0.15Mg0.05)O2-(1-x) Li[Li1/3Mn2/3]O2 (0.0 ≤ x ≤ 1.0) cathode materials for lithium rechargeable batteries. The phase formation behavior of these cathode materials is characterized by X-ray diffraction measurements. The Galvanostatic charge-discharge characteristic of these cathodes is reported in various cut-off voltage limits. When these composite cathodes are charged to 4.8 V, electrochemical extraction of lithium takes place from active (Li[Ni 0.8Co0.15Mg0.05]O2) as well as inactive (Li[Li1/3Mn2/3]O2) components. Good cycleability of these cathodes is obtained when cycled in the cut-off voltage limits of 4.6-3.0 V. The cycleability of these cathodes are deteriorated when charged above 4.8 V and deep discharged up to 1.2 V followed by repeated cycling in these voltage limits. Based on the analyses of impedance spectra at various charge and discharge states, the probable reasons for such findings are discussed.

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