Electrochemical performances of Sn anode electrodeposited on porous Cu foam for Li-ion batteries

Nam, Do-Hwan; Kim, Ryoung Hee; Han, Dong‐Wook; Kwon, Hyuk Sang

doi:10.1016/j.electacta.2012.01.084

Cited by 118 publications

(67 citation statements)

References 30 publications

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“…The alloy deposit shows (center) a spongy material that at high magnification (right) appears made of leaf-like elements, distinct from corncob-like dendrites of pure Cu deposits. [28] As reported in Figure 1b, the X-Rry diffraction (XRD) pattern of the Cu 20 Figure 2 shows the cyclovoltammetric waves recorded upon repeated potentiodynamic sweeping cycles. The electrochemical activity of the Cu 20 Zn 80 alloy is shown by a series of intense current peaks.…”

Section: Preparation Of Porous Cu-zn Layersmentioning

confidence: 99%

“…[28] As reported in Figure 1b, the X-Rry diffraction (XRD) pattern of the Cu 20 Figure 2 shows the cyclovoltammetric waves recorded upon repeated potentiodynamic sweeping cycles. The electrochemical activity of the Cu 20 Zn 80 alloy is shown by a series of intense current peaks. During the first negative scan (see Figure 2a), three cathodic peaks at 1.17, 1.05, and 0.54 V can be clearly observed.…”

Section: Preparation Of Porous Cu-zn Layersmentioning

confidence: 99%

“…The scanning electron microscopy (SEM) images in Figure 1a show, at different magnifications, the deposit morphology of the Cu 20 Zn 80 composition. In the panoramic view (left), the 3D spongy structure appears shaped by macroscopic pores, with diameters in the range of tens of microns at the surface facing the solution and smaller in the background toward the substrate.…”

Section: Preparation Of Porous Cu-zn Layersmentioning

confidence: 99%

See 2 more Smart Citations

3D Porous Cu–Zn Alloys as Alternative Anode Materials for Li‐Ion Batteries with Superior Low T Performance

Varzi

Mattarozzi

Cattarin

et al. 2017

Advanced Energy Materials

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Zinc is recently gaining interest in the battery community as potential alternative anode material, because of its large natural abundance and potentially larger volumetric density than graphite. Nevertheless, pure Zn anodes have shown so far very poor cycling performance. Here, the electrochemical performance of Zn‐rich porous Cu–Zn alloys electrodeposited by an environmentally friendly (aqueous) dynamic hydrogen bubble template method is reported. The lithiation/delithiation mechanism is studied in detail by both in situ and ex situ X‐ray diffraction, indicating the reversible displacement of Zn from the Cu–Zn alloy upon reaction with Li. The influence of the alloy composition on the performance of carbon‐ and binder‐free electrodes is also investigated. The optimal Cu:Zn atomic ratio is found to be 18:82, which provides impressive rate capability up to 10 A g−1 (≈30C), and promising capacity retention upon more than 500 cycles. The high electronic conductivity provided by Cu, and the porous electrode morphology also enable superior lithium storage capability at low temperature. Cu18Zn82 can indeed steadily deliver ≈200 mAh g−1 at −20 °C, whereas an analogous commercial graphite electrode rapidly fades to only 12 mAh g−1.

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Section: Preparation Of Porous Cu-zn Layersmentioning

confidence: 99%

Section: Preparation Of Porous Cu-zn Layersmentioning

confidence: 99%

Section: Preparation Of Porous Cu-zn Layersmentioning

confidence: 99%

See 1 more Smart Citation

3D Porous Cu–Zn Alloys as Alternative Anode Materials for Li‐Ion Batteries with Superior Low T Performance

Varzi

Mattarozzi

Cattarin

et al. 2017

Advanced Energy Materials

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“…Another possible explanation, the carbon peak is hard to be seen seperately because the peak overlapping between carbon (002) and SnO2 (110) peak. Noted that, from the JCPDS data, C(002) has a constructive diffraction angle at 26.624 0 whereas diffraction peak of SnO2(110) is at around 26.611 0 [7]. In this case the peak at 2 of 26.775 0 is defined as SnO2 (110) that corespond to SnO2 peak at other main direction.…”

Section: Experimental Methodsmentioning

confidence: 99%

Time dependence of carbon film deposition on SnO2/Si using DC unbalanced magnetron sputtering

Alfiadi¹,

Aji²,

Darma³

2014

AIP Conference Proceedings

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Abstract. Carbon deposition on SnO2 layer has been demonstrated at low temperature using DC unbalanced magnetron-sputtering technique for various time depositions. Before carbon sputtering process, SnO2 thin layer is grown on silicon substrate by thermal evaporation method using high purity Sn wire and then fully oxidizes by dry O2 at 225ºC. Carbon sputtering process was carried out at pressure of 4.6x10 -2 Torr by keeping the substrate temperature of 300 ºC for sputtering deposition time of 1 to 4 hours. The properties of SnO2/Si structure and carbon thin film on SnO2 is characterized using SEM, EDAX, XRD, FTIR, and Raman Spectra. SEM images and XRD spectra show that SnO2 thin film has uniformly growth on Si substrate and affected by annealing temperature. Raman and FTIR results confirm the formation of carbon-rich thin film on SnO2. In addition, XRD spectra indicate that some structural change occur by increasing sputtering deposition time. Furthermore, the change of atomic structure due to the thermal annealing is analized by XRD spectra and Raman spectroscopy.

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“…8a) in the first cycle presents four plateaus around 1.3, 0.65, 0.5, and 0.4 V vs. Li + /Li for lithiation, and four additional plateaus around 0.3, 0.6, 0.7, and 0.8 V for delithiation, respectively. In general, it is thought that the charge/discharge reaction of the Sn anode occurs in multiple stages, [27][28][29] which corresponds to the following lithiation and delithiation reactions of the Sn-SnO 2 -TiO 2 composite films (Eq. 4):…”

Section: Effects On Chemical Composition Of Electrodeposited Films-mentioning

confidence: 99%

Nanoporous Sn-SnO₂-TiO₂Composite Films Electrodeposited on Cu Sheets as Anode Materials for Lithium-Ion Batteries

Kure‐Chu

Satoh

Miura

et al. 2015

J. Electrochem. Soc.

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Nanoporous Sn-SnO 2 -TiO 2 composite films with large surface areas were fabricated on Cu sheets by a hybrid electroplating method, i.e., electrodeposition and electrophoretic deposition, using an ethanol-water mixed bath containing SnCl 2 and TiCl 3 . The Sn-SnO 2 -TiO 2 composite films, containing a large amount of oxygen and a small amount of Ti (2-16 at.%) in form of TiO 2 , are composed of nanocrystals in the form of dendrites, needles, flakes, or scales, which were dependent predominantly on the mole ratio of [Sn 2+ ]/ [Ti 3+ ], but also on the volume ratio of EtOH/H 2 O in the plating baths and the current density. The initial specific discharge capacities were 495, 1069, and 772 mAh · g −1 for the nanoporous Sn-SnO 2 -TiO 2 composite films formed in plating baths with EtOH/H 2 O ratios of 9:1, 6:1, and 3:1, respectively. The enhanced discharge capacity and improved retention of the composite films can be attributed to their nanoporous structure and the inclusion of TiO 2 , which mitigates the volume change that occurs during the lithiation and delithiation of the Sn nanocrystals. Lithium-ion batteries (LIBs) have been widely utilized as power sources in various portable electronics, such as cellular phones, digital cameras, and portable computers; these also show significant promise for applications in hybrid electric vehicles (HEVs), electric vehicles (EVs), and smart grids.1-7 Currently, most commercial LIBs utilize carbonaceous materials as the anodic active substance and Cu foils as current collectors. However, industrial technologies related to LIBs have been becoming more sophisticated, approaching the theoretical capacitance to the theoretical capacitance of carbon-based materials (LiC 6 : 372 mAh · g −1 ). Considering the future applications in the automobile industry for electric vehicles (EVs), it is highly desirable to explore new anode materials with higher power densities and increased lifetime cycles to meet the expanding needs of the LIB industry.To obtain higher gravimetric and volumetric capacities, Sn-based materials have attracted considerable attention as potential substitutes for the conventional carbonaceous anode materials of LIBs, because Sn has a high theoretical capacitance (Li 4.4 Sn: 994 mAh · g −1 ) and possesses an excellent electrical conductivity. [8][9][10][11] Pure Sn metal, however, exhibits a poor cyclic lifetime due to its mechanical scalability from its volume expansion (around 300%) and contraction during the lithium insertion and extraction processes, as well as a continual formation of a thick solid electrolyte interphase (SEI) during cycling. During the charge-discharge cycles, the mechanical scalability will crack and deteriorate the electrode, significantly affecting the mechanical stability and cyclic lifetime of the battery. In order to improve the cycling performance of a Sn electrode, some non-active materials including Co, 12-14 Ni, [15][16] Cu, 17 and Zn 18 were regularly added into the Sn metal to produce Sn alloys and meditate the volume change, thoug...

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Electrochemical performances of Sn anode electrodeposited on porous Cu foam for Li-ion batteries

Cited by 118 publications

References 30 publications

3D Porous Cu–Zn Alloys as Alternative Anode Materials for Li‐Ion Batteries with Superior Low T Performance

3D Porous Cu–Zn Alloys as Alternative Anode Materials for Li‐Ion Batteries with Superior Low T Performance

Time dependence of carbon film deposition on SnO2/Si using DC unbalanced magnetron sputtering

Nanoporous Sn-SnO₂-TiO₂Composite Films Electrodeposited on Cu Sheets as Anode Materials for Lithium-Ion Batteries

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Electrochemical performances of Sn anode electrodeposited on porous Cu foam for Li-ion batteries

Cited by 118 publications

References 30 publications

3D Porous Cu–Zn Alloys as Alternative Anode Materials for Li‐Ion Batteries with Superior Low T Performance

3D Porous Cu–Zn Alloys as Alternative Anode Materials for Li‐Ion Batteries with Superior Low T Performance

Time dependence of carbon film deposition on SnO2/Si using DC unbalanced magnetron sputtering

Nanoporous Sn-SnO2-TiO2Composite Films Electrodeposited on Cu Sheets as Anode Materials for Lithium-Ion Batteries

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Nanoporous Sn-SnO₂-TiO₂Composite Films Electrodeposited on Cu Sheets as Anode Materials for Lithium-Ion Batteries