Silicon nanowires with and without carbon coating as anode materials for lithium-ion batteries

Chen, Huixin; Dong, Zhixin; Fu, Yubin; Yang, Yong

doi:10.1007/s10008-009-1001-4

Cited by 51 publications

(53 citation statements)

References 19 publications

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“…Fig. 7 shows that discharge capacity of the Si NWs with coppercoating as a function of cycle numbers at the rate of 0.05 C. The discharge capacity of the Si NWs with copper-coating decreases gradually with cycles and 86.3% of its initial discharge capacity remains after 15 cycles at the rate of 0.05 C. For a comparison, we presented the data of discharge capacity retention of Si NWs with and without carbon-coating after 15cycles at the rate of 0.05 C in Table 1 which we have reported previously [14]. Obviously, the capacity retention of the copper-coated Si NWs is highest.…”

Section: Initial Charge-discharge Performancementioning

confidence: 95%

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Silicon nanowires coated with copper layer as anode materials for lithium-ion batteries

Chen

Xiao

Wang

et al. 2011

Journal of Power Sources

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194

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Section: Initial Charge-discharge Performancementioning

confidence: 95%

“…Recently, we have developed an approach to use Si nanotubes/nanowires with carbon-coating as negative electrode for Li-ion batteries [14,15]. Carbon-coated Si NWs electrodes were successfully synthesized with chemical vapor deposition method at first and then a thermal evaporation of carbon.…”

Section: Introductionmentioning

confidence: 99%

Silicon nanowires coated with copper layer as anode materials for lithium-ion batteries

Chen

Xiao

Wang

et al. 2011

Journal of Power Sources

Self Cite

194

133

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“…Thus, careful engineering of the core and shell materials is required to obtain an optimal balance [233,234]. With 10 nm thick carbon coating on Si nanowires of 90 nm in diameter, the first cycle coulombic efficiency was greatly enhanced from 70 % (without coating) to 83 %, in addition to the increased capacity from 3125 mAh g À1 (without coating) to 3702 mAh g À1 , and cycling stability (5 % capacity retention after 15 cycles) [235]. Replacing the carbon coating with 10 nm thick Cu film can further improve the coulombic efficiency of the initial cycle up to 90.3 %, and improve capacity retention up to 86 % after 15 cycles [236].…”

Section: Coated Si Nanostructures and Stabilization Of The Seimentioning

confidence: 97%

Anodes for Li-Ion Batteries

et al. 2016

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Lithium-ion batteries (LiBs) have made considerable progress since the first commercial one by Sony in 1991, which had LiCoO 2 and graphite as active elements of the positive and negative electrodes, respectively. The LiBs are now the primary energy storage devices in the transportation and communications, from portable use in computers, up to electric and hybrid vehicles. More recently, they have also been used as back-up supply units, frequency regulators (load leveling) to integrate on smart grids the electricity produced by windmills and photovoltaic plants (for a recent review, see [1]). These applications require high energy densities, high power, and safety among others. Considerable efforts have been made to propose other electrodes to fulfill these requirements. We have recently reviewed the works and progress concerning the materials for the positive electrode [2][3][4][5][6]. The present work is devoted to the materials for the negative electrode counterpart. It is common to use the terminology anode and cathode for the negative and positive electrodes, respectively, although the electrodes play alternatively the role of anode and cathode during the charge and discharge process. We shall use this terminology in the following for conciseness purposes only.An ideal active anode element should fulfill the following requirements as follows: (1) It must be light and accommodate as much Li as possible to optimize the gravimetric capacity. (2) Its redox potential with respect to Li 0 /Li + must be as small as possible at any Li-concentration. The reason is that this potential is subtracted to the redox potential of the cathode material to give the overall voltage of the cell, and smaller voltage means smaller energy density. (3) It must possess good electronic and ionic conductivities since faster motion of the lithium ions and the electrons also mean higher power density of the cell. (4) It must not be soluble in the solvents of the electrolyte and not react with the lithium salt. (5) It must be safe, i.e. avoid any thermal runaway of the battery, a criterion that is not independent of the previous one, but deserves special attention, especially for use in transportation such as electric vehicles and planes. (6) It must be cheap and environmentally friendly. The different materials proposed as anode elements for Li-ion batteries must be discussed with respect to these different criteria.The graphite is still the most used anode material and is still the reference. The first works giving evidence of the insertion of lithium in graphite date from 1955 [7], confirmed by the synthesis of LiC 6 in 1965 [8]. The synthesis of LiC 6 , however, was not obtained by electrochemical process at that time. Another decade was spent before Besenhard and Eichinger discovered the reversible intercalation of lithium in graphite, proposing this material as an anode in 1976 [9,10]. Increasing the Li content in LiC 6 is possible [8], but no reversible cycling beyond LiC 6 could ever be obtained. The graphite anode can thus be cyc...

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“…Hence, in order to address the challenge mentioned, a lot of work has been reported. Silicon nanowires covered with carbon coating were prepared by Chen et al In their work [93], the silicon nanowires coated by a conductive and mechanically rigid carbon coating showed improved initial Coulombic efficiency of 83% and a capacity retention of 75% in 15th cycle.…”

Section: Vapor-liquid-solid Synthesis Of Silicon Nanowiresmentioning

confidence: 99%

Recent Progress in Synthesis and Application of Low-Dimensional Silicon Based Anode Material for Lithium Ion Battery

Sun

Liu

Zhu

2017

Journal of Nanomaterials

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Silicon is regarded as the next generation anode material for LIBs with its ultra-high theoretical capacity and abundance. Nevertheless, the severe capacity degradation resulting from the huge volume change and accumulative solid-electrolyte interphase (SEI) formation hinders the silicon based anode material for further practical applications. Hence, a variety of methods have been applied to enhance electrochemical performances in terms of the electrochemical stability and rate performance of the silicon anodes such as designing nanostructured Si, combining with carbonaceous material, exploring multifunctional polymer binders, and developing artificial SEI layers. Silicon anodes with low-dimensional structures (0D, 1D, and 2D), compared with bulky silicon anodes, are strongly believed to have several advanced characteristics including larger surface area, fast electron transfer, and shortened lithium diffusion pathway as well as better accommodation with volume changes, which leads to improved electrochemical behaviors. In this review, recent progress of silicon anode synthesis methodologies generating low-dimensional structures for lithium ion batteries (LIBs) applications is listed and discussed.

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Silicon nanowires with and without carbon coating as anode materials for lithium-ion batteries

Cited by 51 publications

References 19 publications

Silicon nanowires coated with copper layer as anode materials for lithium-ion batteries

Silicon nanowires coated with copper layer as anode materials for lithium-ion batteries

Anodes for Li-Ion Batteries

Recent Progress in Synthesis and Application of Low-Dimensional Silicon Based Anode Material for Lithium Ion Battery

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