Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process

Takeshi Wada, Tetsu Ichitsubo, Kunio Yubuta, Haruhiko Segawa, Hirokazu Yoshida, Hidemi Kato

研究成果: Contribution to journalArticle査読

156 被引用数 (Scopus)

抄録

We synthesized freestanding bulk three-dimensional nanoporous Si using dealloying in a metallic melt, a top-down process. Using this nanoporous Si, we fabricated negative electrodes with high lithium capacity, nearing their theoretical limits, and greatly extended cycle lifetimes, considerably improving the battery performance compared with those using electrodes made from silicon nanoparticles. By operating the electrodes below the accommodation volume limit of their pores, we prolonged their cycle lifetime.

本文言語英語
ページ(範囲)4505-4510
ページ数6
ジャーナルNano Letters
14
8
DOI
出版ステータス出版済み - 8 13 2014
外部発表はい

All Science Journal Classification (ASJC) codes

  • バイオエンジニアリング
  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学
  • 機械工学

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