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Title: Mechanochemical synthesis and anode properties of SnO-based amorphous materials

Abstract

Many investigations of anode materials for lithium-ion secondary batteries have been carried out in order to obtain batteries of higher capacity and energy density. Recently, SnO-based glasses, which were prepared by the usual melt quenching technique, have been proposed as a new anode for lithium-ion secondary batteries by Idota et al. It has been reported that the capacity per unit weight was higher than 600 mAh g{sup {minus}1} and the capacity per unit volume was higher than 2,200 mAh cm{sup {minus}3}, values which are almost double those for carbon materials used as anodes of commercial lithium-ion batteries at present. Thus SnO-based glasses have attracted much interest as high-capacity anode materials for lithium-ion secondary batteries. Amorphous materials in the system SnO-B{sub 2}O{sub 3}-P{sub 2}O{sub 5}, with or without the addition of Li{sub 2}O, were synthesized by mechanical milling treatment of starting oxides in a dry N{sub 2} 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-B{sub 2}O{sub 3}-P{sub 2}O{sub 5} materials obtained by mechanical milling were more than 500 mAh g{sup {minus}1} at a constant current ofmore » 1.5 mA cm{sup {minus}2}. The capacity for Li{sub 2}O added materials was comparable or slightly larger than that for the materials without the addition of Li{sub 2}O. Charge-discharge curves obtained using these materials were similar to those for the glassy powders in the system SnO-B{sub 2}O{sub 3}-P{sub 2}O{sub 5} prepared by a melt quenching procedure. SnO-based amorphous materials obtained by mechanochemical systems are promising candidates as high-capacity anode materials for lithium-ion secondary batteries.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Osaka Prefecture Univ., Sakai (JP)
OSTI Identifier:
20003927
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 146; Journal Issue: 11; Other Information: PBD: Nov 1999; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; SYNTHESIS; ANODES; CHEMICAL PROPERTIES; TIN OXIDES; GLASS; GRINDING; POWDERS

Citation Formats

Morimoto, H, Nakai, M, Tatsumisago, M, and Minami, T. Mechanochemical synthesis and anode properties of SnO-based amorphous materials. United States: N. p., 1999. Web. doi:10.1149/1.1392578.
Morimoto, H, Nakai, M, Tatsumisago, M, & Minami, T. Mechanochemical synthesis and anode properties of SnO-based amorphous materials. United States. https://doi.org/10.1149/1.1392578
Morimoto, H, Nakai, M, Tatsumisago, M, and Minami, T. 1999. "Mechanochemical synthesis and anode properties of SnO-based amorphous materials". United States. https://doi.org/10.1149/1.1392578.
@article{osti_20003927,
title = {Mechanochemical synthesis and anode properties of SnO-based amorphous materials},
author = {Morimoto, H and Nakai, M and Tatsumisago, M and Minami, T},
abstractNote = {Many investigations of anode materials for lithium-ion secondary batteries have been carried out in order to obtain batteries of higher capacity and energy density. Recently, SnO-based glasses, which were prepared by the usual melt quenching technique, have been proposed as a new anode for lithium-ion secondary batteries by Idota et al. It has been reported that the capacity per unit weight was higher than 600 mAh g{sup {minus}1} and the capacity per unit volume was higher than 2,200 mAh cm{sup {minus}3}, values which are almost double those for carbon materials used as anodes of commercial lithium-ion batteries at present. Thus SnO-based glasses have attracted much interest as high-capacity anode materials for lithium-ion secondary batteries. Amorphous materials in the system SnO-B{sub 2}O{sub 3}-P{sub 2}O{sub 5}, with or without the addition of Li{sub 2}O, were synthesized by mechanical milling treatment of starting oxides in a dry N{sub 2} 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-B{sub 2}O{sub 3}-P{sub 2}O{sub 5} materials obtained by mechanical milling were more than 500 mAh g{sup {minus}1} at a constant current of 1.5 mA cm{sup {minus}2}. The capacity for Li{sub 2}O added materials was comparable or slightly larger than that for the materials without the addition of Li{sub 2}O. Charge-discharge curves obtained using these materials were similar to those for the glassy powders in the system SnO-B{sub 2}O{sub 3}-P{sub 2}O{sub 5} prepared by a melt quenching procedure. SnO-based amorphous materials obtained by mechanochemical systems are promising candidates as high-capacity anode materials for lithium-ion secondary batteries.},
doi = {10.1149/1.1392578},
url = {https://www.osti.gov/biblio/20003927}, journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 11,
volume = 146,
place = {United States},
year = {1999},
month = {11}
}