MnO2 Nanoparticles Anchored Multi Walled Carbon Nanotubes as Potential Anode Materials for Lithium Ion Batteries

2021 ◽  
Vol 21 (10) ◽  
pp. 5296-5301
Author(s):  
Ahmad Umar ◽  
Faheem Ahmed ◽  
Ahmed A. Ibrahim ◽  
Hassan Algadi ◽  
Hasan B. Albargi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Anode Materials ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Li Ion Battery ◽  
Multi Walled Carbon Nanotubes ◽  
Li Ion ◽  
Walled Carbon Nanotubes ◽  
Charge Discharge

Herein, we report a facile hydrothermal synthesis of MnO2 nanoparticles anchored multi walled carbon nanotubes (MnO2@MWCNTs) as potential anode materials for lithium-ion (Li-ion) batteries. The prepared MnO2@MWCNTs were characterized by several techniques which confirmed the formation of MnO2 nanoparticles anchored MWCNTs. The X-ray diffraction and Raman-scattering analyses of the prepared material further revealed the effective synthesis of MnO2@MWCNTs. The fabricated Li-ion battery based on MnO2@MWCNTs exhibited a reversible capacity of ~823 mAhg−1 at a current density of 100 mAg−1 for the first cycle, and delivered a capacity of ~421 mAhg−1 for the 60 cycles. The coulombic efficiency was found to be ~100% which showed excellent reversible charge–discharge behavior. The outstanding performance of the MnO2@MWCNTs anode for the Li-ion battery can be attributed to the distinctive morphology of the MnO2 nanoparticles anchored MWCNTs that facilitated the fast transport of lithium ions and electrons and accommodated a broad volume change during the cycles of charge/discharge.

Study of Carbon Nanotubes for Lithium-Ion Batteries Application

2010 ◽  
Vol 72 ◽  
pp. 299-304
Author(s):  
Alberto Varzi ◽  
Corina Täubert ◽  
Margret Wohlfahrt-Mehrens ◽  
Martin Kreis ◽  
Walter Schütz
Keyword(s):  
Carbon Nanotubes ◽  
Active Material ◽  
Chemical Vapour ◽  
Rate Capability ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Negative Electrodes ◽  
Multi Walled Carbon Nanotubes ◽  
Li Ion ◽  
Walled Carbon Nanotubes

The potential use of multi-walled carbon nanotubes (MWCNTs) produced by chemical vapour deposition (CVD) as a conductive agent for electrodes in Li-ion batteries has been investigated. LiNi0.33Co0.33Mn0.33O2 (NCM) has been chosen as active material for positive electrodes, and a nano-sized TiO2-rutile for the negative electrodes. The electrochemical performances of the electrodes were studied by galvanostatic techniques and especially the influence of the nanotubes on the rate capability and cycling stability has been evaluated. The addition of MWCNTs significantly enhanced the rate performances of both positive and negative electrodes and improved the capacity retention upon cycling. The obtained results demonstrated that the addition of MWCNTs in low amounts to the electrode composition enables an increase in both energy and power density of a Li-ion battery.

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

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7237-7244 ◽  
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.

Directionally assembled MoS2 with significantly expanded interlayer spacing: a superior anode material for high-rate lithium-ion batteries

2018 ◽  
Vol 2 (8) ◽  
pp. 1441-1448 ◽  
Author(s):  
Qilin Wei ◽  
Min-Rui Gao ◽  
Yan Li ◽  
Dongtang Zhang ◽  
Siyu Wu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Interlayer Spacing ◽  
High Rate ◽  
New Class ◽  
Multi Walled Carbon Nanotubes ◽  
Rate Capacity ◽  
Walled Carbon Nanotubes

Interlayer-expanded MoS2 nanosheets directionally assembled on multi-walled carbon nanotubes represent a new class of anode materials for lithium ion batteries with superior high rate capacity.

scholarly journals Porous hollow carbon nanofibers derived from multi-walled carbon nanotubes and sucrose as anode materials for lithium-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 224-230 ◽  
Author(s):  
Wanwan Lei ◽  
Sheng Liu ◽  
Wen-Hua Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Carbon Nanofibers ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Layer ◽  
Pristine Mwcnts ◽  
Multi Walled Carbon Nanotubes ◽  
Hollow Carbon ◽  
Walled Carbon Nanotubes

Porous hollow carbon nanofibers exhibit tunable shell thicknesses from 2.5 to 13.5 nm. Overcoating of a thin, porous, and non-graphitic carbon layer on the pristine MWCNTs holds a great potential for enhancing their anode performance for LIBs.

scholarly journals Dealloying-Derived Nanoporous Cu6Sn5 Alloy as Stable Anode Materials for Lithium-Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4348
Author(s):  
Chi Zhang ◽  
Zheng Wang ◽  
Yu Cui ◽  
Xuyao Niu ◽  
Mei Chen ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Specific Area ◽  
Cycling Performance ◽  
Ex Situ ◽  
Li Ion ◽  
Xrd Patterns ◽  
Cu6sn5 Alloy

The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. Herein, the nanoporous (np) Cu6Sn5 alloy and Cu6Sn5/Sn composite were applied as a lithium-ion battery anode. The as-dealloyed np-Cu6Sn5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m2 g−1. The anode shows an initial discharge capacity as high as 1200 mA h g−1, and it remains a capacity of higher than 600 mA h g−1 for the initial five cycles at 0.1 A g−1. After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g−1 for at least 350 cycles, with outstanding Coulombic efficiency. The ex situ XRD patterns reveal the reverse phase transformation between Cu6Sn5 and Li2CuSn. The Cu6Sn5/Sn composite presents a similar cycling performance with a slightly inferior rate performance compared to np-Cu6Sn5. The study demonstrates that dealloyed nanoporous Cu6Sn5 alloy could be a promising candidate for lithium-ion batteries.

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