Synthesis and Measurement of SnO2@C/graphene Nanocomposite for Lithium Ion Batteries

2011 ◽  
Vol 396-398 ◽  
pp. 2330-2333
Author(s):  
Hai Teng Wang ◽  
Da Wei He ◽  
Yong Sheng Wang ◽  
Hong Peng Wu ◽  
Ji Gang Wang

SnO2@C/graphene nanocomposite was prepared via chemical synthesis method. The electrochemical performance of the SnO2@C/graphene nanocomposite as anode material was measured by galvanostatic charge/discharge cycling. As an anode material for Li ion batteries, the SnO2@C/graphene nanocomposite shows 823mAhg-1 and 732mAhg-1 capacities for the first discharge and charge, respectively, which is more than the theoretical capacity of tin oxide, and has good capacity retention with a capacity of 748mAhg-1 after 30 cycles. These results suggest that SnO2@C/graphene nanocomposite would be a promising anode material for lithium ion battery.

2012 ◽  
Vol 465 ◽  
pp. 108-111 ◽  
Author(s):  
Hai Teng Wang ◽  
Da Wei He ◽  
Yong Sheng Wang ◽  
Hong Peng Wu ◽  
Ji Gang Wang

We report the fabrication of a tin nanoparticles coated anode in graphene (SnO2 /graphene) for lithium-ion batteries. As an anode material for Li ion batteries, it has 806mAhg-1 and 683mAhg-1 capacities for the first discharge and charge, respectively, which is more than the theoretical capacity of tin oxide, and has good capacity retention with a capacity of 606mAhg-1 after 30 cycles.


NANO ◽  
2015 ◽  
Vol 10 (06) ◽  
pp. 1550081 ◽  
Author(s):  
Shan-Shan Chen ◽  
Xue Qin

Fe 3 O 4–graphene nanocomposites were prepared via a simple hydrothermal method. Ultrafine Fe 3 O 4 nanoparticles were evenly anchored on graphene substrates. As anode material for Li -ion batteries (LIB), the nanocomposite showed high initial discharge and charge capacities of 1456mAhg-1 and 739.9mAhg-1 at high current density of 500mAg-1. Additionally, the charge capacity was also retained at 698.3mAhg-1 after 200 cycles, thereby indicating excellent cycling stability. The results suggested that the as-prepared Fe 3 O 4–graphene nanocomposite is a promising candidate for practical application as a Li -ion battery anode material.


2019 ◽  
Vol 3 (11) ◽  
pp. 3116-3127 ◽  
Author(s):  
Ming Shi ◽  
Zige Tai ◽  
Na Li ◽  
Kunyang Zou ◽  
Yuanzhen Chen ◽  
...  

Spherical graphite produced from waste semi-coke displays an excellent cycle life with the capacity retention of 97.7% at 0.5C after 700 cycles.


Batteries ◽  
2019 ◽  
Vol 5 (4) ◽  
pp. 69 ◽  
Author(s):  
Khaleel I. Hamad ◽  
Yangchuan Xing

Lithium-rich layered oxide cathode materials of Li1.2Mn0.5100Ni0.2175Co0.0725O2 have been synthesized using metal salts with acetate and nitrate anions as precursors in glycerol solvent. The effects of the precursor metal salts on particle size, morphology, cationic ordering, and ultimately, the electrode performance of the cathode powders have been studied. It was demonstrated that the use of cornstarch as a gelling agent with nitrate-based metal salts results in a reduction of particle size, leading to higher surface area and initial discharge capacity. However, the cornstarch gelling effect was minimized when acetate salts were used. As observed in the Fourier-transform infrared spectroscopy analysis, cornstarch can react with acetates to form acetyl groups during the synthesis, effectively preventing the cornstarch gel from capping the particles, thus leading to larger particles. A tradeoff was found when nitrate and acetate salts were mixed in the synthesis. It was shown that the new cathode powder has the best cationic ordering and capacity retention, promising a much stable Li-rich cathode material for lithium-ion batteries.


2019 ◽  
Vol 7 (5) ◽  
pp. 2106-2113 ◽  
Author(s):  
Gen-Cai Guo ◽  
Ru-Zhi Wang ◽  
Bang-Ming Ming ◽  
Changhao Wang ◽  
Si-Wei Luo ◽  
...  

C3N has attracted much attention as an anode material for lithium-ion (Li-ion) batteries, owing to its excellent mechanical and electronic properties.


2016 ◽  
Vol 4 (25) ◽  
pp. 9760-9766 ◽  
Author(s):  
Peiyu Wang ◽  
Rutao Wang ◽  
Junwei Lang ◽  
Xu Zhang ◽  
Zhenkun Chen ◽  
...  

Lithium-ion hybrid capacitors (LIHCs) are receiving intense interest because they can combine the distinctive advantages of Li-ion batteries and supercapacitors.


RSC Advances ◽  
2015 ◽  
Vol 5 (29) ◽  
pp. 22449-22454 ◽  
Author(s):  
Tao Shen ◽  
Xufeng Zhou ◽  
Hailiang Cao ◽  
Chao Zheng ◽  
Zhaoping Liu

The TiO2(B)–CNT–graphene ternary composite, in which graphene and CNTs construct a highly efficient conductive network, exhibits excellent rate performance and cycling stability as an anode material for Li-ion batteries.


RSC Advances ◽  
2017 ◽  
Vol 7 (48) ◽  
pp. 30032-30037 ◽  
Author(s):  
Hui Zhang ◽  
Hui Xu ◽  
Hong Jin ◽  
Chao Li ◽  
Yu Bai ◽  
...  

A novel 3-dimensional (3D) flower-like silicon/carbon composite was synthesized through spray drying method by using NaCl as the sacrificial reagent and was evaluated as an anode material for lithium ion batteries.


2012 ◽  
Vol 236-237 ◽  
pp. 731-735
Author(s):  
Chang Su ◽  
Ling Min Wang ◽  
Li Huan Xu ◽  
Jun Lei Liu ◽  
Fang Yang ◽  
...  

A copolymer of 4-(1H-pyrrol-1-yl)phenol (PLPY) and pyrrole ( P(PLPY-co-Py) )was synthesized. And the chemical structure and battery performance of the prepared materials were characterized comparably by 1H NMR, FT-IR spectra and galvanostatic charge-discharge testing using simulant lithium ion half-cell method, respectively. The results shows that the introduction of the phenol group to the pyrrole as a rigid side chain could prevent the polymer from agglomeration and optimize the particle morphology of the resulting polymers, all of which made it demonstrate a significantly improved specific capacity (73.9 mAh•g-1) compared with PPy (21.4 mAh•g-1)


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