Hydrofluoric Acid-Free Electroless Deposition of Metals on Silicon in Ionic Liquids and Its Enhanced Performance in Lithium Storage

Lahiri, Abhishek; Lu, Tianqi; Behrens, Niklas; Borisenko, Natalia; Li, Guozhu; Endres, Frank

doi:10.1021/acsami.7b01404

Cited by 13 publications

(7 citation statements)

References 30 publications

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“…[56] Lahiri et al show electrodeless deposition of metals on Si without HF in ionic liquids and use in situ AFM to observe the process of layer-by-layer growth of metals on Si. [57]…”

Section: Siliconmentioning

confidence: 99%

Advances in Understanding Materials for Rechargeable Lithium Batteries by Atomic Force Microscopy

Wang

Liu

Zhao

et al. 2018

Energy & Environ Materials

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The development of advanced lithium batteries represents a major technological challenge for the new century. Understanding the fundamental electrode degradation mechanisms is important for battery performance improvements. The complex electrochemical processes inside a working battery are being explored to a limited extent. Various advanced material characterization techniques have been used to monitor dynamic conditions for optimizing battery materials. State‐of‐the‐art atomic force microscopy methods have been applied to energy storage systems, specifically lithium‐ion batteries. Atomic force microscopy is an ideal tool to provide localized morphological, chemical, and physical information at nanoscale for the in‐depth understanding of the electrochemical processes, reaction mechanisms, and degradation of battery materials. Here, we review recent progress in the development and application of atomic force microscopy for high‐performance lithium‐ion batteries. We discuss atomic force microscopy as an analytical tool to help researchers understand graphite, silicon, layered metal oxides, and other representative electrode materials. We summarize the importance of atomic force microscopy technique in studying the next‐generation Li–S and Li–O2 batteries. We also highlight some of the remaining challenges and possible solutions for future development.

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“…[56] Lahiri et al show electrodeless deposition of metals on Si without HF in ionic liquids and use in situ AFM to observe the process of layer-by-layer growth of metals on Si. [57]…”

Section: Siliconmentioning

confidence: 99%

Advances in Understanding Materials for Rechargeable Lithium Batteries by Atomic Force Microscopy

Wang

Liu

Zhao

et al. 2018

Energy & Environ Materials

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“…Therefore, ionic liquids have attracted much attention as electrolyte solvents for use in LIBs. Some researchers reported negative‐electrode performance of electrodeposited Si electrode in lithium bis(trifluoromethanesulfonyl)amide/1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethanesulfonyl)amide, which was relatively high cycling stability compared to that in an organic electrolyte . We previously investigated the electrochemical performance of Si‐based electrodes in various ionic liquid electrolytes .…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers reported negative-electrode performance of electrodeposited Si electrode in lithium bis(trifluoromethanesulfonyl)amide/1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)amide, which was relatively high cycling stability compared to that in an organic electrolyte. [10][11][12] We previously investigated the electrochemical performance of Si-based electrodes in various ionic liquid electrolytes. [13][14][15][16][17][18] We found that the cycling stabilities of Si-alone electrodes were significantly improved in some ionic liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Elucidation of the Reaction Behavior of Silicon Negative Electrodes in a Bis(fluorosulfonyl)amide‐Based Ionic Liquid Electrolyte

et al. 2017

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Excellent cycling performance of an electrode composed of silicon alone was achieved in a bis(fluorosulfonyl)amide (FSA)‐based electrolyte, with a high discharge capacity of 950 mA h g−1 observed even at the 500th cycle. To elucidate the reaction behavior of the Si electrode in an FSA‐based ionic liquid electrolyte, we investigated the change in the cross‐sectional morphology of the Si‐active material layer, the distribution of Li in the layer, and the crystallinity of Si on the electrode surface. By cross‐sectional scanning electron microscopy, we confirmed that the electrode thickness increased with the cycle number. The increase in thickness was less noticeable in the FSA‐based electrolyte than in an organic electrolyte. An elemental analysis of the electrode material revealed that a film derived from the electrolyte was formed not only on the surface but also inside of the electrode. Soft X‐ray emission spectroscopy demonstrated that the distribution of Li in the FSA‐based electrolyte was more uniform for the cross‐section of the cycled electrode compared to that in an organic electrolyte. The results of Raman spectroscopy indicated that domains of amorphous Si were homogeneously distributed on the electrode surface in the FSA‐based electrolyte. The uniform distribution of the lithiation−delithiation reaction should help to suppress disintegration of the active material layer.

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“…Furthermore, formation of GaSb nanowires was shown to be possible using electroless deposition. As the open circuit potential of Sb/Sb 3+ is more positive compared to Si and Ge in the same ionic liquid, Sb modification of both electrodeposited Si and Ge was achieved (Lahiri et al, 2016, 2017). The electroless deposition of Sb on Ge from 0.1 M SbCl 3 -[Py 1, 4 ]TFSA led to the formation of Sb nanoparticles.…”

Section: Electroless Deposition Of Alloys and Composite Materialsmentioning

confidence: 99%

“…It is evident that modifying the Ge with Sb led to a higher Na capacity storage even at higher current densities of 0.83 A g −1 compared to Ge which was cycled at a current density of 0.54 A g −1 . Similar to the modification of Ge with Sb, electrodeposited silicon was also modified by Ag and Sb as it was found that the open circuit potentials of both Ag/Ag + and Sb/Sb 3+ are more positive to Si(IV)/Si in the ionic liquid (Lahiri et al, 2017). From quartz crystal microbalance (QCM) measurements, the rate of deposition for Sb on Si was found to be 2.7 ng sec −1 for the first 1,000 s which then decreases to 0.4 ng sec −1 .…”

Section: Electroless Deposition Of Alloys and Composite Materialsmentioning

confidence: 99%

A Review on the Electroless Deposition of Functional Materials in Ionic Liquids for Batteries and Catalysis

2019

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Developing functional materials via electroless deposition, without the need of external energy is a fascinating concept. Electroless deposition can be subcategorized into galvanic displacement reaction, disproportionation reaction, and deposition in presence of reducing agents. Galvanic displacement reaction is a spontaneous reduction process wherein the redox potentials of the metal/metal ion in the electrolyte govern the thermodynamic feasibility of the process. In aqueous solutions, the galvanic displacement reaction takes place according to the redox potentials of the standard electrochemical series. In comparison, in the case of ionic liquids, galvanic displacement reaction can be triggered by forming metal ion complexes with the anions of the ionic liquids. Therefore, the redox potentials in ILs can be different to those of metal complexes in aqueous solutions. In this review, we highlight the progress in the electroless deposition of metals and semiconductors nanostructures, from ionic liquids and their application toward lithium/sodium batteries, and in catalysis.

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Hydrofluoric Acid-Free Electroless Deposition of Metals on Silicon in Ionic Liquids and Its Enhanced Performance in Lithium Storage

Cited by 13 publications

References 30 publications

Advances in Understanding Materials for Rechargeable Lithium Batteries by Atomic Force Microscopy

Advances in Understanding Materials for Rechargeable Lithium Batteries by Atomic Force Microscopy

Elucidation of the Reaction Behavior of Silicon Negative Electrodes in a Bis(fluorosulfonyl)amide‐Based Ionic Liquid Electrolyte

A Review on the Electroless Deposition of Functional Materials in Ionic Liquids for Batteries and Catalysis

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