Mechanochemical Synthesis and Anode Properties of SnO‐Based Amorphous Materials

  • Morimoto H
  • Nakai M
  • Tatsumisago M
  • et al.
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Abstract

Amorphous materials in the system SnO-B2O3-P2O5, with or without the addition of Li2O, were synthesized by mechanical milling treatment of starting oxides in a dry N2 atmosphere at room temperature. These materials, obtained as fine powders, worked as an anode for a lithium-ion secondary battery using a conventional liquid electrolyte. The first discharge capacities of the anode of SnO-B2O3-P2O5 materials obtained by mechanical milling were more than 500 mAh g-1at a constant current of 1.5 mA cm-2. The capacity for Li2O added materials was comparable or slightly larger than that for the materials without the addition of Li2O. Charge-discharge curves obtained using these materials were similar to those for the glassy powders in the system SnO-B2O3-P2O5 prepared by a melt quenching procedure. SnO-based amorphous materials obtained by mechanochemical synthesis are promising candidates as high-capacity anode materials for lithium-ion secondary batteries.

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Morimoto, H., Nakai, M., Tatsumisago, M., & Minami, T. (1999). Mechanochemical Synthesis and Anode Properties of SnO‐Based Amorphous Materials. Journal of The Electrochemical Society, 146(11), 3970–3973. https://doi.org/10.1149/1.1392578

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