Silicon nanofilms as anode materials for flexible lithium ion batteries

Bensalah, Nasr; Kamand, Fadi Z.; Zaghou, Mustafa; Dawoud, Hana D.; Tahtamouni, Talal Al

doi:10.1016/j.tsf.2019.137516

Cited by 26 publications

(12 citation statements)

References 38 publications

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“…However, the limited number of cycles was enough to evaluate the goodness of the SiNWs when used as anodes in LIBs. In fact, SiNWs with inappropriate morphologies exhibit poor cycling just after few cycles due to the degradation of the Si structure occurring during the lithiation and delithiation processes [8,14,37]. In our case, all cycles show a discharge capacity (circles) larger than the charge capacity (squares).…”

Section: Journal Of Nanomaterialsmentioning

confidence: 67%

“…To overcome these disadvantages, great effort has been aimed at the investigation of alternative silicon structures. In this context, silicon nanoparticles [6,7], silicon nanowires/nanotubes [8][9][10], nanosheets [11][12][13], nanofilms [14], and 3D porous structures [15,16] have been intensely studied to improve the anode performance significantly. At the same time, extensive research has been carried out to combine the silicon nanostructures with different carbon materials [17,18] such as amorphous carbon [19], conductive carbon black [20], carbon nanotubes [21], and graphene [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Characterization of Cu-Catalysed Si Nanowires as an Anode for Lithium-Ion Cells

Prosini

Rondino

Moreno

et al. 2020

Journal of Nanomaterials

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Silicon (Si) nanowires (NWs) grown on stainless-steel substrates by Cu-catalysed Chemical Vapour Deposition (CVD) have been prepared to be used as anodes in lithium-ion batteries. The use of NWs can overcome the problems related to the Si volume changes occurring during lithium alloying by reducing stress relaxation and preventing material fragmentation. Moreover, since the SiNWs are grown directly on the substrate, which also acts as a current collector, an excellent electrical contact is generated between the two materials without the necessity to use additional binders or conducting additives. The electrochemical performance of the SiNWs was tested in cells using lithium metal as the anode. A large irreversible capacity was observed during the first cycle and, to a lesser extent, during the second cycle. All the subsequent cycles showed good reversibility even if the coulombic efficiency did not exceed 95%, suggesting the formation of an unstable SEI film and a continuous decomposition of the electrolyte on the silicon surface. The absence of a stable SEI film was assumed responsible for a linear capacity fade observed upon cycling. On the other hand, the electrochemical characterization performed at different values of the charging current showed that SiNWs possess an exceptionally high rate capability.

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Section: Journal Of Nanomaterialsmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Electrochemical Characterization of Cu-Catalysed Si Nanowires as an Anode for Lithium-Ion Cells

Prosini

Rondino

Moreno

et al. 2020

Journal of Nanomaterials

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“…The pores in porous Si also alleviate large volume expansion. Therefore, various Si nanostructures have been designed to improve their cycling stability, such as nanoparticles (0D) [128,130] , 1D structures (nanowires [131,132] , nanorods [133,134] and nanotubes [135] ), 2D thin films [136] , and 3D porous structures [137] . In addition, the reasonable design of Si/C nanocomposites with special structure is also considered to be an effective way to reduce the capacity attenuation caused by the volume change of silicon anode electrode [138] .…”

Section: Alloying-type Anode Materialsmentioning

confidence: 99%

Recent developments in advanced anode materials for lithium-ion batteries

Chang¹,

Wu²,

Han³

2022

Energy Mater

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The rapid expansion of electric vehicles and mobile electronic devices is the main driver for the improvement of advanced high-performance lithium-ion batteries (LIBs). The electrochemical performance of LIB depends on the specific capacity, rate performance and cycle stability of the electrode material. In terms of the enhancement of LIB performance, the improvement of anode material is also significant compared with cathode material. There are still some challenges in producing an industrial anode material that is superior to commercial graphite. Based on the different electrochemical reaction mechanisms of anode materials for LIBs during charge and discharge, the advantages/disadvantages and electrochemical reaction mechanisms of intercalation-type anode materials, conversion-type anode materials and alloying-type anode materials are summarized in detail. The methods and strategies for improving electrochemical performance of different types of anode materials are emphatically described. Finally, the challenges to the future development of LIBs will be considered. This review can offer meaningful reference value for the construction and performance optimization of anode materials for LIBs.

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“…13,14 Typically, volume change and damage to Si anodes could be effectively relieved by minimizing the particle size, 15,16 such as Si nanoparticles, 17,18 nanowires, [19][20][21] nanotubes, 22,23 thin lms, and skeletons. 13,24,25 Based on our previous studies, 17,18 a lamellar submicron Si was also feasible as the anode for LIBs.…”

Section: Introductionmentioning

confidence: 99%