The Electrochemical Properties of Cu Coated LiCr_{0.2}V_{0.2}Mn_{0.6}O₂ Nanocomposites for High Rate Li-Ion Batteries

• Authors: H. Algul , A. Erdas , M. Tokur , M. Guler , H. Akbulut , A. Alp
• Languages of publication: EN

Abstracts

EN

Several reported problems of commercial LiCoO₂ electrode materials such as high cost, toxicity, limited rate capability and safety concerns are still remain to be problematic to develop the lithium ion consumer electronics such as mobile phones, tablets and notebook computers. In this study, an alternative nanocomposite electrode material based on LiCr_{0.2}V_{0.2}Mn_{0.6}O₂ and copper coated one were produced via a facile sol-gel method and electroless Cu deposition techniques. The resulting samples were characterized by X-ray diffraction (Rigaku DMax 2200 diffractometer) using a monochromatized Cu-Kα source (λ=1.5406 Å) and 2θ scan range from 10° to 80° with a speed of 1° min^{-1}. The scanning electron microscope (SEM) was used in order to characterize the morphology of the active materials. The as-synthesized Cu/LiCr_{0.2}V_{0.2}Mn_{0.6}O₂ composite cathode exhibits a stable capacity on cycling and good rate capability after 50 cycles and total capacity retention of 93% is obtained. The unique 2D structure of the composite cathode material, its good electrochemical performances and its relatively low cost comparing to LiCoO₂, make this material very promising for applications.

Keywords

EN

82.47.Aa; 81.15.-z; 88.80.ff

Discipline

• 88.80.ff: Batteries(for lithium-ion batteries, see 82.47.Aa; for lead-acid, nickel-metal hydride batteries, see 82.47.Cb; see also 88.85.jk, and 88.85.jm in advanced vehicles)
• 82.47.Aa: Lithium-ion batteries
• 81.15.-z: Methods of deposition of films and coatings; film growth and epitaxy(for structure of thin films, see 68.55.-a; see also 85.40.Sz Deposition technology in microelectronics; for epitaxial dielectric films, see 77.55.Px)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 1038-1041

Dates

published

2015-04

Contributors

author

H. Algul

• Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya/Turkey

author

A. Erdas

• Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya/Turkey

author

M. Tokur

• Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya/Turkey

author

M. Guler

• Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya/Turkey

author

H. Akbulut

• Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya/Turkey

author

A. Alp

• Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya/Turkey

References

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Identifiers

DOI

10.12693/APhysPolA.127.1038