Transmission Electron Microscope Specimen Preparation of Si-Based Anode Materials for Li-Ion Battery by Using Focused Ion Beam and Ultramicrotome
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A successful transmission electron microscope (TEM) analysis is closely related to the preparation of the TEM specimen and should be followed by the suitable TEM specimen preparation depending on the purpose of analysis and the subject materials. In the case of the Si-based anode material, lithium atoms of formed Li silicide were removed due to ion beam and electron beam during TEM specimen preparation and TEM observation. To overcome the problem, we proposed a new technique to make a TEM specimen without the ion beam damage. In this study, two types of test specimens from the Si-based anode material of Li-ion battery were prepared by respectively adopting the only focused ion beam (FIB) method and the new FIB-ultramicrotome method. TEM analyses of two samples were conducted to compare the Ga ion damage of the test specimen.
Abstract
A successful transmission electron microscope (TEM) analysis is closely related to the preparation of the TEM specimen and should be followed by the suitable TEM specimen preparation depending on the purpose of analysis and the subject materials. In the case of the Si-based anode material, lithium atoms of formed Li silicide were removed due to ion beam and electron beam during TEM specimen preparation and TEM observation. To overcome the problem, we proposed a new technique to make a TEM specimen without the ion beam damage. In this study, two types of test specimens from the Si-based anode material of Li-ion battery were prepared by respectively adopting the only focused ion beam (FIB) method and the new FIB-ultramicrotome method. TEM analyses of two samples were conducted to compare the Ga ion damage of the test specimen.
참고문헌 (13)
- 채정은, "리튬이차전지용 Si-Ti-Fe 합금 음극소재의 미세구조 분석", 대한금속·재료학회지, 51(6), pp.429~436 (2013), 대한금속·재료학회[DOI]
- Chan C K, "High-performance lithium battery anodes using silicon nanowires", Nat. Nanotechnol., 3, pp.31~35 (2008)[DOI]
- Danet J, "Valence electron energy-loss spectroscopy of silicon negative electrodes for lithium batteries", Phys. Chem. Chem. Phys., 12, pp.220~226 (2010)[DOI]
- Jung H, "Si anode embedded in super-elastic nitinol (Ni-Ti) shape memory alloy matrix for Li rechargeable batteries", J. Mater. Chem., 21, pp.11213~11216 (2011)[DOI]
- Lee H Y, "Graphite-FeSi alloy composites as anode materials for rechargeable lithium batteries", J. Power Sources, 112, pp.649~654 (2002)[DOI]
- Mao O, "Active", inactive nanocomposites as anodes for Li-ion batteries, 1999, pp.2, 3~5
- Muto S, "Capacity-fading mechanisms of <TEX>$LiNiO_2-based$<", TEX> lithium-ion batteries(II), 2009, pp.156, 371~377
- Obrovac M N, "Structural changes in silicon anodes during lithium insertion", extraction. Electrochem, 2004, pp.7, A93~A96
- Park C M, "Li-alloy based anode materials for Li secondary batteries", Chem. Soc. Rev., 39, pp.3115~3141 (2010)[DOI]
- Raghavan V, "Fe-Si-Ti (iron-silicon-titanium)", J. Phase Equilibria Diffus., 30, pp.393~396 (2009)[DOI]
- Sasaki T, "Capacity-fading mechanisms of <TEX>$LiNiO_2-based$<", TEX> lithium-ion batteries(I), 2009, pp.156, 289~293
- Weitzer F, "On the reaction scheme and liquidus surface in the ternary system Fe-Si-Ti", Intermetallics, 16, pp.273~282 (2008)[DOI]
- Winter M, "Insertion electrode materials for rechargeable lithium batteries", Adv. Mater., 10, pp.725~763 (1998)[DOI]