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The effect of electrolyte on the electrochemical properties of Na/@a-NaMnO"2 batteries

Jo, I. H. et al.

Materials research bulletin. VOL 58, ; 2014, 74-77 -- Elsevier Science B.V., Amsterdam. Part; (pages 74-77) -- 2014

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  • Title:
    The effect of electrolyte on the electrochemical properties of Na/@a-NaMnO"2 batteries
  • Author: Jo, I. H.;
    Ryu, H. S.;
    Gu, D. G.;
    Park, J. S.;
    Ahn, I. S.;
    Ahn, H. J.;
    Nam, T. H.;
    Kim, K. W.;
    Boo, J.-H.;
    Greenblatt, M.;
    Nam, T.-h.;
    Song, C. S.;
    Xue, D.;
    Yin, S.;
    Ahn, H.;
    Kim, J. M.
  • Found In: Materials research bulletin. VOL 58, ; 2014, 74-77
  • Journal Title: Materials research bulletin.
  • Subjects: Electrical and Electronic Engineering; Mechanical Engineering; Civil Engineering; LCC: TA404; Dewey: 620.11 620
  • Publication Details: Elsevier Science B.V., Amsterdam.
  • Language: English
  • Abstract: Pure @a-NaMnO"2 cathode materials were prepared by solid-state reaction with Mn"2O"3 and Na"2CO"3 at 750^oC. Electrochemical properties of Na/@a-NaMnO"2 battery was investigated with electrolytes as 1M NaClO"4 EC/DEC and 1M NaBF"4 TEGDME. First discharge capacity of Na/@a-NaMnO"2 cell using 1M NaClO"4 EC/DEC electrolyte and 1M NaBF"4 TEGDME electrolyte was 146mAhg^-^1 and 136mAhg^-^1 discharge capacity for the first cycle at 0.2C rate and 104mAhg^-^1 97mAhg^-^1 after 20 cycles, respectively. Na/@a-NaMnO"2 battery with 1M NaClO"4 EC/DEC electrolyte shows higher initial charge/discharge capacity than that using 1M NaBF"4 TEGDME because of high ionic conductivity of electrolyte and low interfacial resistance between the electrolyte and electrode. However, Na/@a-NaMnO"2 battery with 1M NaBF"4 TEGDME electrolyte has better stability for the 20th cycle from coulombic efficiency result because of stability of interfacial resistance.
  • Identifier: Journal ISSN: 0025-5408
  • Publication Date: 2014
  • Physical Description: Physical
  • Accrual Information: Monthly
  • Shelfmark(s): 5396.410000
  • UIN: ETOCRN357321886

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