Dodecanethiol coated multi-walled carbon nanotube films as flexible current collector for lithium-ion batteries

Surface/interface modification is developed to tune the electrolyte wettability of a carbon nanotube current collector for controlling the lithium ion diffusion and achieving high voltage foldable lithium-ion batteries.

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Stannous sulfide/multi-walled carbon nanotube hybrids as high-performance anode materials of lithium-ion batteries

Electrochimica Acta ◽

10.1016/j.electacta.2014.05.080 ◽

2014 ◽

Vol 136 ◽

pp. 355-362 ◽

Cited By ~ 25

Author(s):

Shuankui Li ◽

Shiyong Zuo ◽

Zhiguo Wu ◽

Ying Liu ◽

Renfu Zhuo ◽

...

Keyword(s):

Carbon Nanotube ◽

Lithium Ion Batteries ◽

Anode Materials ◽

High Performance ◽

Lithium Ion ◽

Multi Walled Carbon Nanotube

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Multi-walled carbon nanotubes composited with nanomagnetite for anodes in lithium ion batteries

RSC Advances ◽

10.1039/c4ra15228j ◽

2015 ◽

Vol 5 (10) ◽

pp. 7237-7244 ◽

Cited By ~ 31

Author(s):

Xiaoyu Li ◽

Hongbo Gu ◽

Jiurong Liu ◽

Huige Wei ◽

Song Qiu ◽

...

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

Lithium Ion Batteries ◽

Anode Materials ◽

Lithium Ion ◽

Multi Walled Carbon Nanotube ◽

Multi Walled Carbon Nanotubes ◽

20 Nm ◽

Walled Carbon Nanotubes ◽

Annealing Method

The multi-walled carbon nanotube (MWNT) nanocomposites with homogenously anchored nanomagnetite of 10–20 nm prepared by a hydrothermal-annealing method exhibit excellent performances as anode materials for lithium ion batteries.

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Structured Carbon Nanotube/Silicon Nanoparticle Anode Architecture for High Performance Lithium-Ion Batteries

MRS Proceedings ◽

10.1557/opl.2014.309 ◽

2014 ◽

Vol 1643 ◽

Author(s):

Sharon Kotz ◽

Ankita Shah ◽

Sivasubramanian Somu ◽

KM Abraham ◽

Sanjeev Mukerjee ◽

...

Keyword(s):

Carbon Nanotube ◽

Lithium Ion Batteries ◽

High Performance ◽

Standard Procedure ◽

Active Material ◽

Lithium Ion ◽

Current Collector ◽

Directed Assembly ◽

Electrode Structure ◽

Silicon Nanoparticle

ABSTRACTSilicon is emerging as a very attractive anode material for lithium ion batteries due to its low discharge potential, natural abundance, and high theoretical capacity of 4200 mAh/g, more than ten times that of graphite (372 mAh/g). This high charge capacity is the result of silicon’s ability to incorporate 4.4 lithium atoms per silicon atom; however, the incorporation of lithium also leads to a 300-400% volume expansion during charging, which can cause pulverization of the material and loss of access to the silicon. The architecture of the anode must therefore be able to adapt to this volume increase. Here we present a layered carbon nanotube and silicon nanoparticle electrode structure, fabricated using directed assembly techniques. The porous carbon nanotube layers maintain electrical connectivity through the active material and increase the surface area of the current collector. Using this architecture, we obtain an initial capacity in excess of 4000 mAh/g, as well as increased power and energy density as compared to anodes fabricated using the standard procedure of slurry casting.

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Hydrophilic and Conductive Carbon Nanotube Fibers for High-Performance Lithium-Ion Batteries

Materials ◽

10.3390/ma14247822 ◽

2021 ◽

Vol 14 (24) ◽

pp. 7822

Author(s):

Nayoung Ku ◽

Jaeyeong Cheon ◽

Kyunbae Lee ◽

Yeonsu Jung ◽

Seog-Young Yoon ◽

...

Keyword(s):

Carbon Nanotube ◽

Lithium Ion Batteries ◽

Sno2 Nanoparticles ◽

Specific Capacity ◽

Rate Capability ◽

Lithium Ion ◽

Current Collector ◽

Water Infiltration ◽

Carbon Nanotube Fiber ◽

Conductive Agent

Carbon nanotube fiber (CNTF) is a highly conductive and porous platform to grow active materials of lithium-ion batteries (LIB). Here, we prepared SnO2@CNTF based on sulfonic acid-functionalized CNTF to be used in LIB anodes without binder, conductive agent, and current collector. The SnO2 nanoparticles were grown on the CNTF in an aqueous system without a hydrothermal method. The functionalized CNTF exhibited higher conductivity and effective water infiltration compared to the raw CNTF. Due to the enhanced water infiltration, the functionalized CNTF became SnO2@CNTF with an ideal core–shell structure coated with a thin SnO2 layer. The specific capacity and rate capability of SnO2@-functionalized CNTF were superior to those of SnO2@raw CNTF. Since the SnO2@CNTF-based anode was free of a binder, conductive agent, and current collector, the specific capacity of the anode studied in this work was higher than that of conventional anodes.

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