Electrochemical Properties of Highly Ordered TiO2 Nanotube Arrays as an Anode Material for Lithium-Ion Batteries

2011 ◽  
Vol 130-134 ◽  
pp. 1281-1285 ◽  
Author(s):  
Li Li Wang ◽  
Shi Chao Zhang ◽  
Xiao Meng Wu

Well-aligned TiO2 nanotube arrays were fabricated from anodization by a subsequent heat treatment. Rate performance and electrochemical properties of TiO2 nanotube arrays were studied intensively. The electrode exhibits excellent rate capabilities at various rates with an average coulombic efficiency reaching 95.6%. It is obvious that TiO2 nanotube array possesses high rate capability and excellent cycling stability.

Author(s):  
Li Yang ◽  
Ye Tian ◽  
Jun Chen ◽  
Jinqiang Gao ◽  
Long Zhen ◽  
...  

As a high-safety and low-cost cathode material for lithium-ion batteries, LiFePO4 is predominately suffered from undesirable rate performance arising from its inferior conductivity in the practical application. Herein, LiFePO4 modified...


2019 ◽  
Vol 419 ◽  
pp. 1-5
Author(s):  
Ayuko Kitajou ◽  
Katsuya Eguchi ◽  
Yuji Ishado ◽  
Hiroyuki Setoyama ◽  
Toshihiro Okajima ◽  
...  

2017 ◽  
Vol 5 (29) ◽  
pp. 15302-15309 ◽  
Author(s):  
Zhewei Yang ◽  
Huajun Guo ◽  
Xinhai Li ◽  
Zhixing Wang ◽  
Jiexi Wang ◽  
...  

The coexistence of the graphitic structure and amorphous structure benefits the electrochemical properties of GC.


2018 ◽  
Vol 6 (4) ◽  
pp. 1462-1472 ◽  
Author(s):  
Bin Luo ◽  
Yuxiang Hu ◽  
Xiaobo Zhu ◽  
Tengfei Qiu ◽  
Linjie Zhi ◽  
...  

Structural evolution of SnS2 from vertically or parallelly aligned nanosheets to ultra-small nanocrystals on nanocarbon surfaces is demonstrated and the latter exhibit enhanced rate performance and cycling stability for both Li-ion and Na-ion storage.


Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1946 ◽  
Author(s):  
Hae-Jun Kwon ◽  
Sang-Wook Woo ◽  
Yong-Ju Lee ◽  
Je-Young Kim ◽  
Sung-Man Lee

The electrochemical performance of modified natural graphite (MNG) and artificial graphite (AG) was investigated as a function of electrode density ranging from 1.55 to 1.7 g∙cm−3. The best performance was obtained at 1.55 g∙cm−3 and 1.60 g∙cm−3 for the AG and MNG electrodes, respectively. Both AG, at a density of 1.55 g∙cm−3, and MNG, at a density of 1.60 g∙cm−3, showed quite similar performance with regard to cycling stability and coulombic efficiency during cycling at 30 and 45 °C, while the MNG electrodes at a density of 1.60 g∙cm−3 and 1.7 g∙cm−3 showed better rate performance than the AG electrodes at a density of 1.55 g∙cm−3. The superior rate capability of MNG electrodes can be explained by the following effects: first, their spherical morphology and higher electrode density led to enhanced electrical conductivity. Second, for the MNG sample, favorable electrode tortuosity was retained and thus Li+ transport in the electrode pore was not significantly affected, even at high electrode densities of 1.60 g∙cm−3 and 1.7 g∙cm−3. MNG electrodes also exhibited a similar electrochemical swelling behavior to the AG electrodes.


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