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Title: Synthesis and electrochemical performance of high-capacity 0.34Li{sub 2}MnO{sub 3}·0.66LiMn{sub 0.63}Ni{sub 0.24}Co{sub 0.13}O{sub 2} cathode materials using a Couette–Taylor reactor

Highlights: • The cathode material synthesized by co-precipitation using a Couette–Taylor reactor. • The first and second discharge capacities were measured to be 311 and 307 mA h g{sup −1}. • The material has an excellent rate capability. - Abstract: The 0.34Li{sub 2}MnO{sub 3}·0.66LiMn{sub 0.63}Ni{sub 0.24}Co{sub 0.13}O{sub 2} cathode material for the Li-ion battery is synthesized by co-precipitation using a Couette–Taylor reactor. Particle size analysis (PSA) and a field emission-scanning electron microscopy (FE-SEM) images show that the obtained precursor and cathode material exhibit a narrow particle size distribution and spherical shape. The structure and composition of the 0.34Li{sub 2}MnO{sub 3}·0.66LiMn{sub 0.63}Ni{sub 0.24}Co{sub 0.13}O{sub 2} are confirmed by X-ray diffraction (XRD) and inductively coupled plasma atomic emission spectroscopy (ICP-AES). The first and second discharge capacities of 0.34Li{sub 2}MnO{sub 3}·0.66LiMn{sub 0.63}Ni{sub 0.24}Co{sub 0.13}O{sub 2} are measured to be 311 and 307 mA h g{sup −1}, respectively. The material also has an excellent rate capability (250 and 180 mA h g{sup −1} at 1 C and 5 C, respectively). In the rate capability test at 60 °C, 0.34Li{sub 2}MnO{sub 3}·0.66LiMn{sub 0.63}Ni{sub 0.24}Co{sub 0.13}O{sub 2} has a higher capacity of over 210 mA h g{sup −1} in the range 0.1–10 C. In the cyclicmore » performance test, the capacity retention at high temperature is over 85% after 50 cycles, which is similar to that at room temperature. The 0.34Li{sub 2}MnO{sub 3}·0.66LiMn{sub 0.63}Ni{sub 0.24}Co{sub 0.13}O{sub 2} is therefore a high-capacity material with potential for use as an electrode in Li-ion batteries.« less
Authors:
 [1] ;  [2] ;  [1] ; ;  [3] ;  [4] ;  [1]
  1. Battery Research Center, Korea Electrotechnology Research Institute, Changwon 641-120 (Korea, Republic of)
  2. (Korea, Republic of)
  3. Ecopro Co., LTD., Ochang 363-883 (Korea, Republic of)
  4. Department of Energy Engineering, Hanyang University, Seoul 133-791 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22420597
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 58; Conference: IFFM2013: International forum on functional materials, Jeju City (Korea, Republic of), 27-29 Jun 2013; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AUGER ELECTRON SPECTROSCOPY; CATHODES; CHEMICAL REACTORS; COBALT OXIDES; COPRECIPITATION; ELECTROCHEMISTRY; EMISSION SPECTROSCOPY; FIELD EMISSION; LITHIUM COMPOUNDS; LITHIUM IONS; MANGANATES; NICKEL COMPOUNDS; RETENTION; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; X-RAY DIFFRACTION