Si-decorated CNT network as negative electrode for lithium-ion battery

Patel, Yashkumar; Vanpariya, Anjali; Mukhopadhyay, Indrajit

doi:10.1007/s10008-022-05340-6

Cited by 2 publications

(2 citation statements)

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“…One promising strategy to overcome the issue of volume expansion of silicon anode is utilizing the silicon/carbon structure composite material. These structures can effectively buffer the volume effect of silicon anode with various microstructures, such as synthesizing nanoparticle/carbon composites with egg yolk shell structures [22], carbon nanotube-Si composites [23], and amorphous carbon-covered Si composites. However, the traditional silicon/carbon electrodes are unable to be uniformly distributed in the composite material, which restricts their capability to improve electrical conductivity and shorten Li-ion transport distance.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the design and synthesis of silicon anode frameworks composed of carbon sheets and carbon nanotubes (CNTs) have emerged as a development prospect strategy of high-performance LIBs [23]. The carbon sheets play the active matrix role to enhance electrical conductivity [24] and also act as a protective layer that can mitigate the impact of volume changes that occur during charge and discharge processes.…”

Section: Introductionmentioning

confidence: 99%

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Silicon/Carbon Nanoparticles Assembled with Multifunction Carbon Nanotubes/Sheets as High-Performance Anode of Lithium-Ion Batteries

Yang,

Li,

et al. 2023

Batteries

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Silicon as an electrode material in the lithium-ion battery application scenario has been hindered by its significant volumetric expansion and intricate synthesis processes. In this research, we have successfully synthesized Si@C/carbon nanotubes/carbon sheets (Si@C-CNTs/CS) composites by employing a simple one-pot method along with modified magnesium thermal reaction, which involves melamine to prevent high temperature. The resulting multifunctional Si@C-CNTs/CS composites demonstrate enhanced stability during volume change in silicon, resulting in both higher capacity compared to conventional carbon coating layer and improved conductivity of the materials. The results indicate that the Si@C-CNTs/CS composites exhibit a high discharge-specific capacity of up to 2981.64 mAh g−1 at 0.5 A g−1 current density and retain a discharge-specific capacity of 1487.71 mAh g−1 even after 300 cycles. Therefore, the double-layer carbon network structure of carbon nanotubes/carbon nanosheets can provide an efficient and simple preparation method for high-performance Si-base anode materials in practical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%