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Title: Layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} cathode material prepared by microwave assisted solvothermal method for lithium ion batteries

Abstract

Highlights: • Microwave assisted solvothermal method. • Effect of (0.05–0.2) mol% of excess lithium in layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2}. • Different calcination temperature. • Voltage-cut off optimization. • Conductivity and electrochemical performance correlation. - Abstract: Layered hexagonal structure Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} (LNCM) (x = 0, 0.05, 0.1, 0.15 and 0.2 mol%) compounds were prepared by microwave assisted solvothermal method at two different calcination temperature of 850 and 950 °C. The phase purity of the LNCM compounds was confirmed by Rietveld refined XRD pattern, Raman, and HRTEM studies. The average particle sizes were in the submicron range as confirmed by SEM and TEM analysis. Galvanostatic cycling studies were made in various voltage range, 2.5 to 4.4/4.6/4.8 V at a current rate of 0.2 C. Among all the compounds, LNCM prepared at 950 °C (HS3) exhibited an initial discharge capacity of 197 mAh/g and maintained a capacity of 180 mAh/g at the end of 40{sup th} cycle in 2.5–4.6 V window, indicating an excellent capacity retention. HS3 shows the electrical conductivity of 9.31 × 10{sup −6} S/cm, which was higher than all the other compounds and discussed the reason for the improved electrochemical performance.

Authors:
 [1];  [1]; ;  [2];  [3];  [2];  [4]
  1. Department of Physics, Karunya University, Coimbatore 641 114, Tamilnadu (India)
  2. Department of Materials Science and Engineering, National University of Singapore, Singapore 117 546 (Singapore)
  3. Department of Physics, National University of Singapore, Singapore 117 542 (Singapore)
  4. (Singapore)
Publication Date:
OSTI Identifier:
22730398
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 93; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CAPACITY; ELECTRIC CONDUCTIVITY; ELECTROCHEMISTRY; HYDROTHERMAL SYNTHESIS; LITHIUM ION BATTERIES; LITHIUM IONS; MATERIALS; MICROWAVE RADIATION; PARTICLE SIZE; SCANNING ELECTRON MICROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Kumar, P. Senthil, Sakunthala, A., E-mail: sakunthala@karunya.edu, Rao, R. Prasada, Adams, S., Chowdari, B. V.R., Reddy, M.V., E-mail: msemvvr@nus.edu.sg, and Department of Physics, National University of Singapore, Singapore 117 542. Layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} cathode material prepared by microwave assisted solvothermal method for lithium ion batteries. United States: N. p., 2017. Web. doi:10.1016/J.MATERRESBULL.2017.05.035.
Kumar, P. Senthil, Sakunthala, A., E-mail: sakunthala@karunya.edu, Rao, R. Prasada, Adams, S., Chowdari, B. V.R., Reddy, M.V., E-mail: msemvvr@nus.edu.sg, & Department of Physics, National University of Singapore, Singapore 117 542. Layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} cathode material prepared by microwave assisted solvothermal method for lithium ion batteries. United States. doi:10.1016/J.MATERRESBULL.2017.05.035.
Kumar, P. Senthil, Sakunthala, A., E-mail: sakunthala@karunya.edu, Rao, R. Prasada, Adams, S., Chowdari, B. V.R., Reddy, M.V., E-mail: msemvvr@nus.edu.sg, and Department of Physics, National University of Singapore, Singapore 117 542. Fri . "Layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} cathode material prepared by microwave assisted solvothermal method for lithium ion batteries". United States. doi:10.1016/J.MATERRESBULL.2017.05.035.
@article{osti_22730398,
title = {Layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} cathode material prepared by microwave assisted solvothermal method for lithium ion batteries},
author = {Kumar, P. Senthil and Sakunthala, A., E-mail: sakunthala@karunya.edu and Rao, R. Prasada and Adams, S. and Chowdari, B. V.R. and Reddy, M.V., E-mail: msemvvr@nus.edu.sg and Department of Physics, National University of Singapore, Singapore 117 542},
abstractNote = {Highlights: • Microwave assisted solvothermal method. • Effect of (0.05–0.2) mol% of excess lithium in layered Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2}. • Different calcination temperature. • Voltage-cut off optimization. • Conductivity and electrochemical performance correlation. - Abstract: Layered hexagonal structure Li{sub 1+x}(Ni{sub 0.33}Co{sub 0.33}Mn{sub 0.33})O{sub 2} (LNCM) (x = 0, 0.05, 0.1, 0.15 and 0.2 mol%) compounds were prepared by microwave assisted solvothermal method at two different calcination temperature of 850 and 950 °C. The phase purity of the LNCM compounds was confirmed by Rietveld refined XRD pattern, Raman, and HRTEM studies. The average particle sizes were in the submicron range as confirmed by SEM and TEM analysis. Galvanostatic cycling studies were made in various voltage range, 2.5 to 4.4/4.6/4.8 V at a current rate of 0.2 C. Among all the compounds, LNCM prepared at 950 °C (HS3) exhibited an initial discharge capacity of 197 mAh/g and maintained a capacity of 180 mAh/g at the end of 40{sup th} cycle in 2.5–4.6 V window, indicating an excellent capacity retention. HS3 shows the electrical conductivity of 9.31 × 10{sup −6} S/cm, which was higher than all the other compounds and discussed the reason for the improved electrochemical performance.},
doi = {10.1016/J.MATERRESBULL.2017.05.035},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 93,
place = {United States},
year = {2017},
month = {9}
}