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Title: Physical and electrochemical properties of spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite as a cathode for rechargeable lithium-ion battery

Abstract

Graphical abstract: MnO{sub 2} was blended into pristine Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2} and Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite was obtained. We can observe that the adding MnO{sub 2} in the composite participates in the electrochemical reaction and provide more active sites for lithiation/delithiation. - Highlights: • Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite was synthesized by incorporation of MnO{sub 2} into spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}. • Properties of spherical Li-rich layered oxide can be greatly improved by adding MnO{sub 2}. • The reason for the improvement of Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} by adding MnO{sub 2} was explained. - Abstract: Spherical Li-rich layered Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2} with high tap density and low specific surface area was synthesized. Furthermore, low cost and environmental benign MnO{sub 2} was blended into it and Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite was obtained. The properties of the materials were investigated by XRD, SEM and electrochemical method. The results showed that the existence of MnO{sub 2} in the composites can't change the structure of the pristine Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}. The electrochemical characteristics of Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{submore » 0.18}]O{sub 2}/MnO{sub 2} such as the initial coulombic efficiency, discharge capacity, rate characteristics and cyclability are much better than those of the pristine Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}. The contribution of MnO{sub 2} to the excellent characteristics of the cathode is as follows: the existence of MnO{sub 2} (i) provides more active site for lithiation/delitiation and (ii) suppresses side interaction between cathode particle surface and electrolyte.« less

Authors:
 [1];  [2];  [1];  [3]; ;  [1];  [3];  [1]
  1. School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000 (China)
  2. (China)
  3. Henan Kelong New Energy Co. Ltd., Xinxiang 453000 (China)
Publication Date:
OSTI Identifier:
22420565
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 57; Other Information: Copyright (c) 2014 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; CATHODES; COBALT OXIDES; EFFICIENCY; ELECTROCHEMISTRY; ELECTROLYTES; LITHIUM COMPOUNDS; LITHIUM ION BATTERIES; LITHIUM IONS; MANGANESE OXIDES; MICROSTRUCTURE; NICKEL COMPOUNDS; SCANNING ELECTRON MICROSCOPY; SPECIFIC SURFACE AREA; SURFACES; X-RAY DIFFRACTION

Citation Formats

Fan, Guangxin, E-mail: fangx@hpu.edu.cn, Henan Kelong New Energy Co. Ltd., Xinxiang 453000, Li, Huilian, Dai, Shupu, Zhang, Chuanxiang, Guan, Xuemao, Chang, Zhaorong, and Liu, Baozhong. Physical and electrochemical properties of spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite as a cathode for rechargeable lithium-ion battery. United States: N. p., 2014. Web. doi:10.1016/J.MATERRESBULL.2014.05.025.
Fan, Guangxin, E-mail: fangx@hpu.edu.cn, Henan Kelong New Energy Co. Ltd., Xinxiang 453000, Li, Huilian, Dai, Shupu, Zhang, Chuanxiang, Guan, Xuemao, Chang, Zhaorong, & Liu, Baozhong. Physical and electrochemical properties of spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite as a cathode for rechargeable lithium-ion battery. United States. doi:10.1016/J.MATERRESBULL.2014.05.025.
Fan, Guangxin, E-mail: fangx@hpu.edu.cn, Henan Kelong New Energy Co. Ltd., Xinxiang 453000, Li, Huilian, Dai, Shupu, Zhang, Chuanxiang, Guan, Xuemao, Chang, Zhaorong, and Liu, Baozhong. Mon . "Physical and electrochemical properties of spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite as a cathode for rechargeable lithium-ion battery". United States. doi:10.1016/J.MATERRESBULL.2014.05.025.
@article{osti_22420565,
title = {Physical and electrochemical properties of spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite as a cathode for rechargeable lithium-ion battery},
author = {Fan, Guangxin, E-mail: fangx@hpu.edu.cn and Henan Kelong New Energy Co. Ltd., Xinxiang 453000 and Li, Huilian and Dai, Shupu and Zhang, Chuanxiang and Guan, Xuemao and Chang, Zhaorong and Liu, Baozhong},
abstractNote = {Graphical abstract: MnO{sub 2} was blended into pristine Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2} and Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite was obtained. We can observe that the adding MnO{sub 2} in the composite participates in the electrochemical reaction and provide more active sites for lithiation/delithiation. - Highlights: • Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite was synthesized by incorporation of MnO{sub 2} into spherical Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}. • Properties of spherical Li-rich layered oxide can be greatly improved by adding MnO{sub 2}. • The reason for the improvement of Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} by adding MnO{sub 2} was explained. - Abstract: Spherical Li-rich layered Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2} with high tap density and low specific surface area was synthesized. Furthermore, low cost and environmental benign MnO{sub 2} was blended into it and Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} composite was obtained. The properties of the materials were investigated by XRD, SEM and electrochemical method. The results showed that the existence of MnO{sub 2} in the composites can't change the structure of the pristine Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}. The electrochemical characteristics of Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}/MnO{sub 2} such as the initial coulombic efficiency, discharge capacity, rate characteristics and cyclability are much better than those of the pristine Li[Li{sub 0.2}Mn{sub 0.44}Ni{sub 0.18}Co{sub 0.18}]O{sub 2}. The contribution of MnO{sub 2} to the excellent characteristics of the cathode is as follows: the existence of MnO{sub 2} (i) provides more active site for lithiation/delitiation and (ii) suppresses side interaction between cathode particle surface and electrolyte.},
doi = {10.1016/J.MATERRESBULL.2014.05.025},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 57,
place = {United States},
year = {2014},
month = {9}
}