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Highly dispersed materials for rechargeable lithium batteries: Mechanochemical approach

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Abstract

Mechanical activation was shown to be a successful method for preparation of highly dispersed cathode materials (LiMn2O4, LiCoO2, LiV3O8, Li3Fe2(PO4)3, LiTi2(PO4)3) and solid inorganic lithium ion electrolytes (Li1.3Al0.3Ti1.7(PO4)3) for lithium rechargeable batteries. The materials are characterized by sub-micron particle size and a structural disorder (cation vacancies, cation mixing, etc.). This is favorable for electrochemical properties (cycling) of cathode materials, i.e., an increase in both practical capacity and enhanced stability during lithium ion intercalation-deintercalation. However, these advantages are gained only when the cycling begins with intercalation of lithium ions, in other words, with discharge. Li-ion conductivity of Li1.3Al0.3Ti1.7(PO4)3 samples obtained by mechanical activation is two times as large as that of sintered samples due to the absence of insulating impurities.

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Authors and Affiliations

  1. Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk

    N. V. Kosova & E. T. Devyatkina

  2. Novosibirsk State University, Russia

    D. I. Osintzev

Authors
  1. N. V. Kosova
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  2. E. T. Devyatkina
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  3. D. I. Osintzev
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Original Russian Text Copyright © 2004 by N. V. Kosova, E. T. Devyatkina, and D. I. Osintzev

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Translated from Zhurnal Strukturnoi Khimii, Vol. 45, Supplement, pp. 144–148, 2004.

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Kosova, N.V., Devyatkina, E.T. & Osintzev, D.I. Highly dispersed materials for rechargeable lithium batteries: Mechanochemical approach. J Struct Chem 45 (Suppl 1), S142–S146 (2004). https://doi.org/10.1007/s10947-006-0109-y

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  • DOI: https://doi.org/10.1007/s10947-006-0109-y

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