Preparation and Properties of Polytriphenylamine/Multi-Walled Carbon Nanotube Composite as a Cathode Material for Li-Ion Batteries

2011 ◽  
Vol 335-336 ◽  
pp. 1512-1515
Author(s):  
Chang Su ◽  
Yin Peng Ye ◽  
Xi Dan Bu ◽  
Li Huan Xu ◽  
Cheng Zhang
Keyword(s):  
Carbon Nanotube ◽  
Cathode Material ◽  
Composite Cathode ◽  
Charge Transfer Resistance ◽  
Li Ion Batteries ◽  
Multiwalled Carbon ◽  
Transfer Resistance ◽  
Multi Walled Carbon Nanotube ◽  
Li Ion ◽  
Carbon Nanotube Composite

A composite of polytriphenylamine (PTPAn) and multiwalled carbon nanotube (CNT) was prepared and tested as a cathode material in the Li-ion battery. To research the crucial role and effect of CNT in the above composite electrode, a comparing cathode of PTPAn mechanically mixed with super-p carbon was prepared and tested in the similar Li-ion batteries. The results indicate that due to good resiliency and loosing structure of the composite, PTPAn/CNT composite cathode exhibits lower charge transfer resistance (Rct), higher discharge capacity and cycle stability than those of PTPAn+super-p electrode.

Mechanical Properties Of Polyaniline / Multi-walled Carbon Nanotube Composite Films

2003 ◽  
Vol 791 ◽  
Author(s):  
P. C. Ramamurthy ◽  
W. R. Harrell ◽  
R. V. Gregory ◽  
B. Sadanadan ◽  
A. M. Rao
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Composite Films ◽  
Weight Percent ◽  
Organic Electronic Devices ◽  
Multiwalled Carbon ◽  
Multi Walled Carbon Nanotube ◽  
Contact Devices ◽  
Carbon Nanotube Composite

ABSTRACTHigh molecular weight polyaniline / multi-walled carbon nanotube composite films were fabricated using solution processing. Composite films with various weight percentages of multiwalled carbon nanotubes were fabricated. Physical properties of these composites were analyzed by thermogravimetric analysis, tensile testing, and scanning electron microscopy. These results indicate that the addition of multiwalled nanotubes to polyaniline significantly enhances the mechanical properties of the films. In addition, metal–semiconductor (composite) (MS) contact devices were fabricated, and it was observed that the current level in the films increased with increasing multiwalled nanotube content. Furthermore, it was observed that polyaniline containing one weight percent of carbon nanotubes appears to be the most promising composition for applications in organic electronic devices.

Na3.12Fe2.44(P2O7)2/multi-walled carbon nanotube composite as a cathode material for sodium-ion batteries

2015 ◽  
Vol 3 (33) ◽  
pp. 17224-17229 ◽  
Author(s):  
Yubin Niu ◽  
Maowen Xu ◽  
Chuanjun Cheng ◽  
ShuJuan Bao ◽  
Junke Hou ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Solid State ◽  
Cathode Material ◽  
Solid State Reaction ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Multi Walled Carbon Nanotube ◽  
Carbon Nanotube Composite

Na3.12Fe2.44(P2O7)2/multi-walled carbon nanotube (MWCNT) composite was fabricated by a solid state reaction and was further used to fabricate a cathode for sodium-ion batteries.

LiMn1.5Ni0.25Fe0.2M0.05O4 Nanoparticles as a Cathode Material for Rechargeable Li-Ion Batteries

2020 ◽  
Vol 835 ◽  
pp. 149-154
Author(s):  
Haitham A. Abdellatif ◽  
Mostafa M.M. Sanad ◽  
Elsayed M. Elnaggar ◽  
Mohamed M. Rashad ◽  
Gamal M. El-Kady
Keyword(s):  
Annealing Temperature ◽  
Sol Gel ◽  
Combustion Method ◽  
Xrd Analysis ◽  
Charge Transfer Resistance ◽  
Li Ion Batteries ◽  
Transfer Resistance ◽  
Auto Combustion ◽  
Li Ion ◽  
Kinetic Diffusion

New series of spinel LiNi0.25Fe0.2Mˊ0.05Mn1.5O4 (Mˊ = Cu, Mg or Zn) cathode materials have been purposefully tailored using sol-gel auto-combustion method at low annealing temperature ~ 700°C for 3 h. The XRD analysis showed that all substituted (LNFMO-Mˊ) samples are comported with the main structure of undoped (LNFMO) with crystalline disordered spinel Fd-3m structure. TEM images revealed the octahedron-shape like morphology for the particles and the LNFMO-Zn sample has the widest particle size distribution. EIS spectra evidenced that a typical one semicircle (LNFMO-Mg) was revealed for each cell, suggesting the absence of ionic conductivity contribution. The values of charge transfer resistance (Rct) were equal to 9.3, 6.7, 6.0 and 4.4 kΩ for LNFMO, LNFMO-Cu, LNFMO-Mg indicating that the Zn-doped sample has the fastest kinetic diffusion rate and lowest activation energy of conduction.

Novel synthesis of LiCoPO4–Li3V2(PO4)3 composite cathode material for Li-ion batteries

2015 ◽  
Vol 152 ◽  
pp. 228-231 ◽  
Author(s):  
Ling Wu ◽  
Shaonan Shi ◽  
Xiaoping Zhang ◽  
Jiequn Liu ◽  
Dong Chen ◽  
...  
Keyword(s):  
Cathode Material ◽  
Composite Cathode ◽  
Li Ion Batteries ◽  
Novel Synthesis ◽  
Composite Cathode Material ◽  
Li Ion

A binder-free Ge-nanoparticle anode assembled on multiwalled carbon nanotube networks for Li-ion batteries

2012 ◽  
Vol 48 (56) ◽  
pp. 7061 ◽  
Author(s):  
In-Sung Hwang ◽  
Jae-Chan Kim ◽  
Seung-Deok Seo ◽  
Sungjun Lee ◽  
Jong-Heun Lee ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Li Ion Batteries ◽  
Multiwalled Carbon ◽  
Binder Free ◽  
Li Ion ◽  
Carbon Nanotube Networks

The oxygen vacancy in Li-ion battery cathode materials

2020 ◽  
Vol 5 (11) ◽  
pp. 1453-1466
Author(s):  
Zhen-Kun Tang ◽  
Yu-Feng Xue ◽  
Gilberto Teobaldi ◽  
Li-Min Liu
Keyword(s):  
Oxygen Vacancies ◽  
Charge Transfer Resistance ◽  
Material Structure ◽  
Rate Performance ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Ion Diffusion ◽  
Transfer Resistance ◽  
Accelerated Degradation ◽  
Li Ion

Oxygen vacancies can promote Li-ion diffusion, reduce the charge transfer resistance, and improve the capacity and rate performance of Li-ion batteries. However, oxygen vacancies can also lead to accelerated degradation of the cathode material structure, and lead to phase transition etc.

Self-supported multi-walled carbon nanotube-embedded silicon nanoparticle films for anodes of Li-ion batteries

2013 ◽  
Vol 48 (4) ◽  
pp. 1732-1736 ◽  
Author(s):  
Kyung-Soo Park ◽  
Kyung-Mi Min ◽  
Seung-Deok Seo ◽  
Gwang-Hee Lee ◽  
Hyun-Woo Shim ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Li Ion Batteries ◽  
Silicon Nanoparticle ◽  
Nanoparticle Films ◽  
Multi Walled Carbon Nanotube ◽  
Li Ion
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