Lithiation and Delithiation Reactions of Binary Silicide Electrodes in an Ionic Liquid Electrolyte as Novel Anodes for Lithium‐Ion Batteries
Abstract: We investigated the lithiation and delithiation properties of pure binary silicide electrodes in an ionic liquid electrolyte as novel anodes for lithium‐ion batteries. Some electrodes maintain a high reversible capacity in the electrolyte, whereas they show a poor cycling performance in an organic electrolyte. The superior performance results from the high affinity for the transition metal that composes the silicide with Li. Based on reaction behavior analysis, the crystal structure of silicide is maintained during the cycling, and phase separation does not occur. The ionic liquid electrolyte suppresses the formation of cracks and exfoliation of the silicide layer from a substrate. In addition, a surface film formed on the silicide electrode through the reductive decomposition of the electrolyte has different components than that on a Si electrode, even in the same ionic liquid electrolyte. Soft X‐ray emission spectroscopy demonstrates that the pure silicide itself reacts with Li. The obtained results will provide significant insights into novel alloy‐based anode materials for lithium‐ion batteries.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Lithiation and Delithiation Reactions of Binary Silicide Electrodes in an Ionic Liquid Electrolyte as Novel Anodes for Lithium‐Ion Batteries ; volume:6 ; number:2 ; year:2019 ; pages:581-589 ; extent:9
ChemElectroChem ; 6, Heft 2 (2019), 581-589 (gesamt 9)
- Creator
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Domi, Yasuhiro
Usui, Hiroyuki
Takaishi, Rena
Sakaguchi, Hiroki
- DOI
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10.1002/celc.201801088
- URN
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urn:nbn:de:101:1-2022080507554061237107
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
- 15.08.2025, 7:35 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Domi, Yasuhiro
- Usui, Hiroyuki
- Takaishi, Rena
- Sakaguchi, Hiroki
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Study and optimization of the solid-electrolyte interphase on silicon anodes for lithium-ion batteries
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Electrolyte Additives for Stable Zn Anodes
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Effect of applying a carbon coating on the crystal structure and de-/lithiation mechanism of Mn-doped ZnO lithium-ion anodes
Controlling electric potential to inhibit solid-electrolyte interphase formation on nanowire anodes for ultrafast lithium-ion batteries
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