Reversible crystalline-amorphous phase transformation in Si nanosheets with lithi-/delithiation

Jeong Min Park, Jae Hyun Cho, Jung Hoon Ha, Hae Sik Kim, Sung Wook Kim, Jaejun Lee, Kyung Yoon Chung, Byung Won Cho, Heon-Jin Choi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Silicon (Si) has a large theoretical capacity of 4200 mAhg -1 and has great potential as a high-performance anode material for Li ion batteries (LIBs). Meanwhile, nanostructures can exploit the potential of Si and, accordingly, many zero-dimensional (0D) and one-dimensional (1D) Si nanostructures have been studied. Herein, we report on two-dimensional (2D) Si nanostructures, Si nanosheets (SiNSs), as anodes for LIBs. These 2D Si nanostructures, with a thickness as low 5 nm and widths of several micrometers, show reversible crystalline-amorphous phase transformations with the lithi-/delithiation by the dimensionality of morphology and large surface area. The reversible crystalline-amorphous phase transformation provides a structural stability of Li + insertions and makes SiNSs promising candidates for reliable high-performance LIBs anode materials.

Original languageEnglish
Article number255401
JournalNanotechnology
Volume28
Issue number25
DOIs
Publication statusPublished - 2017 May 26

Fingerprint

Nanosheets
Silicon
Phase transitions
Crystalline materials
Nanostructures
Anodes
Lithium-ion batteries

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Park, Jeong Min ; Cho, Jae Hyun ; Ha, Jung Hoon ; Kim, Hae Sik ; Kim, Sung Wook ; Lee, Jaejun ; Chung, Kyung Yoon ; Cho, Byung Won ; Choi, Heon-Jin. / Reversible crystalline-amorphous phase transformation in Si nanosheets with lithi-/delithiation. In: Nanotechnology. 2017 ; Vol. 28, No. 25.
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abstract = "Silicon (Si) has a large theoretical capacity of 4200 mAhg -1 and has great potential as a high-performance anode material for Li ion batteries (LIBs). Meanwhile, nanostructures can exploit the potential of Si and, accordingly, many zero-dimensional (0D) and one-dimensional (1D) Si nanostructures have been studied. Herein, we report on two-dimensional (2D) Si nanostructures, Si nanosheets (SiNSs), as anodes for LIBs. These 2D Si nanostructures, with a thickness as low 5 nm and widths of several micrometers, show reversible crystalline-amorphous phase transformations with the lithi-/delithiation by the dimensionality of morphology and large surface area. The reversible crystalline-amorphous phase transformation provides a structural stability of Li + insertions and makes SiNSs promising candidates for reliable high-performance LIBs anode materials.",
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Park, JM, Cho, JH, Ha, JH, Kim, HS, Kim, SW, Lee, J, Chung, KY, Cho, BW & Choi, H-J 2017, 'Reversible crystalline-amorphous phase transformation in Si nanosheets with lithi-/delithiation', Nanotechnology, vol. 28, no. 25, 255401. https://doi.org/10.1088/1361-6528/aa6dad

Reversible crystalline-amorphous phase transformation in Si nanosheets with lithi-/delithiation. / Park, Jeong Min; Cho, Jae Hyun; Ha, Jung Hoon; Kim, Hae Sik; Kim, Sung Wook; Lee, Jaejun; Chung, Kyung Yoon; Cho, Byung Won; Choi, Heon-Jin.

In: Nanotechnology, Vol. 28, No. 25, 255401, 26.05.2017.

Research output: Contribution to journalArticle

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AU - Cho, Jae Hyun

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AU - Lee, Jaejun

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AU - Cho, Byung Won

AU - Choi, Heon-Jin

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