High performance Cr, N-codoped mesoporous TiO2 microspheres for lithium-ion batteries

2014 ◽  
Vol 2 (6) ◽  
pp. 1818-1824 ◽  
Author(s):  
Zhonghe Bi ◽  
M. Parans Paranthaman ◽  
Bingkun Guo ◽  
Raymond R. Unocic ◽  
Harry M. Meyer III ◽  
...  

We develop a simple hydrothermal process followed by post-nitridation treatment for the synthesis of chromium, nitrogen-codoped titanium oxide, which exhibits a remarkable charge–discharge capacity at a rate of 5 C and shows an excellent stability for over 300 cycles as an anode material for lithium ion batteries.

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24366-24372 ◽  
Author(s):  
Fengqi Lu ◽  
Qiang Chen ◽  
Yibin Wang ◽  
Yonghao Wu ◽  
Pengcheng Wei ◽  
...  

The free-standing CC@TiOxNy@SnS2 nanocomposites have been synthesized via two steps hydrothermal process and exhibited excellent lithium storage performance.


2015 ◽  
Vol 3 (7) ◽  
pp. 3659-3666 ◽  
Author(s):  
Gang Wang ◽  
Jun Peng ◽  
Lili Zhang ◽  
Jun Zhang ◽  
Bin Dai ◽  
...  

Nanostructured electrode materials have been extensively studied with the aim of enhancing lithium ion and electron transport and lowering the stress caused by their volume changes during the charge–discharge processes of electrodes in lithium-ion batteries.


2014 ◽  
Vol 69 (1) ◽  
Author(s):  
Sethuprakhash V. ◽  
Mustapha, R. ◽  
Shaari, H. R.

Lithium cobalt nickel oxide cathodes had been doped with various metals in recent years to obtain a competitive high performance cathode material for lithium-ion batteries. Cathodes doped with Al and Mg were synthesized by solid-state reaction method. Structural investigation of this material was done using XRD.  Galvanostatic charge/discharge and cyclic voltammetry were studied in order to outline the electrical performance of LiCo0.7Ni0.2Al0.09Mg0.01O2, LiCo0.7Ni0.2Al0.06Mg0.04O2 and LiCo0.7Ni0.2Al0.03Mg0.07O2 materials in lithium-ion batteries. Electrical impedance was done on all the materials and it gave decreasing conductivities with increasing temperature. The activation energies had negative values with increased magnesium content of the material. Larger conductivity variation with temperature was seen in the material with the higher magnesium content. Voltammographs of these materials showed good oxidation and reduction loops. Charge/discharge curve for LiCo0.7Ni0.2Al0.09Mg0.01O2 material showed about 96 mAh/g of discharge capacity for the first cycle.  


Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8758-8765 ◽  
Author(s):  
Liang Peng ◽  
Huijuan Zhang ◽  
Yuanjuan Bai ◽  
Yan Zhang ◽  
Yu Wang

A novel peapod-like TiO2–C array with high conductivity architecture is designed and fabricated on a Ti-substrate for application in high-performance Li-ion batteries.


Nanoscale ◽  
2014 ◽  
Vol 6 (6) ◽  
pp. 3138-3142 ◽  
Author(s):  
Huachao Tao ◽  
Li-Zhen Fan ◽  
Wei-Li Song ◽  
Mao Wu ◽  
Xinbo He ◽  
...  

Hollow core–shell structured Si/C nanocomposites were prepared to adapt for the large volume change during a charge–discharge process.


RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26856-26862 ◽  
Author(s):  
Xiao-Ning Ren ◽  
Liang Wu ◽  
Jun Jin ◽  
Jing Liu ◽  
Zhi-Yi Hu ◽  
...  

A 3D interconnected hierarchically macro-mesoporous TiO2 network optimized by the mediation of biomolecular self-assembly has been used for high performance lithium storage.


2020 ◽  
Vol 8 (14) ◽  
pp. 6539-6545
Author(s):  
Jian Zhang ◽  
Qing Yin ◽  
Jianeng Luo ◽  
Jingbin Han ◽  
Lirong Zheng ◽  
...  

NiFe saponite was discovered for the first time as a new anode material for high-performance lithium-ion batteries, delivering a high capacity of 646 mA h g−1 after 1000 cycles with a charge/discharge density of 500 mA g−1.


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