Particle size and performance of SnS2 anodes for rechargeable lithium batteries

Hitomi Mukaibo, Atsuhito Yoshizawa, Toshiyuki Momma, Tetsuya Osaka*

*この研究の対応する著者

研究成果: Conference article査読

114 被引用数 (Scopus)

抄録

We have proposed SnS2 as promising Li-ion battery anode materials in our previous study. Nanoparticles of this material were synthesized by a sonochemical method. In this work, smaller SnS2 particles were obtained by diluting the starting solution of the synthesis, and particles of 30nm were observed in the Field Emission SEM (FE-SEM) images. From such SnS2 particles, higher discharge capacity of 620 mAh/g and suppressed electrode degradation were observed in charge-discharge experiments. This indicates that the enlargement of the surface area was effective in facilitating the Li-ion diffusion through the active material, in simplifying the electrochemical reaction and in restraining the stress within the electrode, caused during charge and discharge. The discharge capacity in the 30th cycle was improved from 319 to 404 mAh/g by annealing the sample. It is suggested that this may be due to the change in its structure.

本文言語English
ページ(範囲)60-63
ページ数4
ジャーナルJournal of Power Sources
119-121
DOI
出版ステータスPublished - 2003 6 1
イベントSelected Papers Presented at the 11th IMLB - Monterey, CA, United States
継続期間: 2002 6 222002 6 28

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

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