Graphene wrapped silicon nanocomposites for enhanced electrochemical performance in lithium ion batteries

Chabot, Victor; Feng, Kun; Park, Hey Woong; Hassan, Fathy M.; Elsayed, Abdel Rahman; Yu, Aiping; Xiao, Xingcheng; Chen, Zhongwei

doi:10.1016/j.electacta.2014.02.135

Cited by 69 publications

(43 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second is to select the appropriate binders such as the bio-derived watersoluble polymers [16][17][18] (PAA, CMC, Alginate), which can be attributed to the effect of the hydrogen bonding between the carboxylic group of these polymers and Si surface. Besides, another effective strategy is to create silicon-based materials by dispersing the silicon particles in a conductive material matrix such as carbon [19][20][21][22][23] and conductive polymer [24,25], which can not only accommodate large stress and strain but also enhance the electric conductivity of the electrode and form a stable SEI layer. Polyaniline is a kind of potential electrical conductive polymer due to its easy synthesis, high conductivity, and environmental stability.…”

Section: Introductionmentioning

confidence: 99%

Nano-silicon/polyaniline composites with an enhanced reversible capacity as anode materials for lithium ion batteries

Feng

Tian

Xie

et al. 2015

J Solid State Electrochem

View full text Add to dashboard Cite

Silicon nanoparticles are coated with the conductive polyaniline (PANI) using in situ polymerization method as anode materials to improve the electrochemical performance for lithium ion batteries. At first, the physicochemical and electrochemical properties of the doped polyaniline in the lithium ion electrolyte are investigated. After that, the effect of different contents of PANI for preparing Si/PANI composites on the composition and structure and thus the electrochemical performance are investigated. The structure and morphology of asprepared materials are characterized systematically by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). It is demonstrated that the silicon/polyaniline composite presents the core/shell structure. The Si/PANI composite with 12.3 wt% PANI exhibits the optimum electrochemical performance. The electrode still maintains better reversible capacity of 766.6 mAh g −1 , and the capacity retention of 72 % is retained after 50 cycles at current density of 2 A g −1 . The good electrochemical properties can be attributed to the PANI-coating layer, which can improve the electrical conductivity of the Si-based anode materials for lithium ion batteries and accommodate the volume change of silicon during the charge-discharge processes.

show abstract

Section: Introductionmentioning

confidence: 99%

Nano-silicon/polyaniline composites with an enhanced reversible capacity as anode materials for lithium ion batteries

Feng

Tian

Xie

et al. 2015

J Solid State Electrochem

View full text Add to dashboard Cite

show abstract

“…[116,117] In contrast to this, wet chemistry provides low cost synthesis that can be afforded by the road market but results poor control over the structure and composition of nanostructured anode materials. [118,119] Thus, a suitable synthesis methods needs to be opted and modified that can develop the nanostructures of above mentioned materials at low cost with good control over composition, morphology and structure to lower the overall cost of the battery. [120][121][122][123][124] In the next sections, we will highlight the recent progress on anode nanostructures, most suitable synthesis methods and the use of insitu characterizations to analyze the dynamic changes in electrode nanostructures that will be helpful to develop advanced materials for LIBs.…”

Section: Wileyonlinelibrarycommentioning

confidence: 99%

Nanostructured Anode Materials for Lithium Ion Batteries: Progress, Challenge and Perspective

Mahmood

Tang

Hou

2016

Advanced Energy Materials

436

260

View full text Add to dashboard Cite

Lithium ion batteries (LIBs) possess energy densities higher than those of the conventional batteries, but their lower power densities and poor cycling lives are critical challenges for their applications to electric vehicles (EVs) or grid stations. The energy and power densities, as well as the life of LIBs are dependent on electrodes where sluggish diffusion control process and structural stability are the main concerns. Here, the lithium storage mechanism of anode materials and the Goodenough diagram to explain the potential of cell and key parameters to determine the performance of an anode are highlighted. The cost reduction parameters and the availability of anode materials for future batteries on the basis of their resources and performances will be discussed. Further, the recent progress on anode nanostructures and solutions to the associated challenges will be outlined. The use of several techniques to determine the dynamic variations in nanostructures including both structural and chemical changes of electrode nanostructures during cycling as well as the limitations for high load applications will be explained. Finally, the concluding remarks will highlight the characteristics for both anode and cathode for better choice of electrode combinations in the full batteries.

show abstract

“…Si/graphite@graphene spray-drying/heat treatment 100 803.3 62.2% ( n = 50) [121] Si NPs/graphene sheets freeze-drying/thermal reduction 100 1271 67% ( n = 100) [122] Graphene wrapped Si freeze-drying method 100 1248.8 78.8% ( n = 100) [123] Grafted Si NPs/graphene freeze-drying method 2000 1184 76% ( n = 300) [109] Si from magnesiothermic reduction 3D Si/graphene sol-gel followed by reduction 5000 530 68% ( n = 100) [131] Porous Si@SiO x / graphene chemical activation/reduction 100 831 91.8% ( n = 50) [129] Si NPs/graphene ball milling/thermal treatment 400 1314 31.2% ( n = 50) [133] RH-Si NPs/graphene precipitation/reduction 1000 1000 75% ( n = 30) [130] Graphene/Si-C nanocomposite vacuum fi ltration followed by reduction 400 1100 99% ( n = 100) [132] Si from CVD and others…”

Section: Wileyonlinelibrarycommentioning

confidence: 99%

Graphene‐Containing Nanomaterials for Lithium‐Ion Batteries

Lü

et al. 2015

Advanced Energy Materials

205

111

View full text Add to dashboard Cite

Graphene‐containing nanomaterials have emerged as important candidates for electrode materials in lithium‐ion batteries (LIBs) due to their unique physical properties. In this review, a brief introduction to recent developments in graphene‐containing nanocomposite electrodes and their derivatives is provided. Subsequently, synthetic routes to nanoparticle/graphene composites and their electrochemical performance in LIBs are highlighted, and the current state‐of‐the‐art and most recent advances in the area of graphene‐containing nanocomposite electrode materials are summarized. The limitations of graphene‐containing materials for energy storage applications are also discussed, with an emphasis on anode and cathode materials. Potential research directions for the future development of graphene‐containing nanocomposites are also presented, with an emphasis placed on practicality and scale‐up considerations for taking such materials from benchtop curiosities to commercial products.

show abstract

Graphene wrapped silicon nanocomposites for enhanced electrochemical performance in lithium ion batteries

Cited by 69 publications

References 47 publications

Nano-silicon/polyaniline composites with an enhanced reversible capacity as anode materials for lithium ion batteries

Nano-silicon/polyaniline composites with an enhanced reversible capacity as anode materials for lithium ion batteries

Nanostructured Anode Materials for Lithium Ion Batteries: Progress, Challenge and Perspective

Graphene‐Containing Nanomaterials for Lithium‐Ion Batteries

Contact Info

Product

Resources

About