Ultrasonic assisted growth of SnO2@carbon hollow nanosphere composites as conductive agent free anode materials for lithium-ion batteries

Ionics ◽  
2021 ◽  
Author(s):  
Hong Ma ◽  
Di Wu ◽  
Ming Lin ◽  
Luming Peng
2014 ◽  
Vol 43 (9) ◽  
pp. 1426-1428 ◽  
Author(s):  
Mohammad Mydul Alam ◽  
Wenwen Zhao ◽  
Shuo Zhai ◽  
Shin-ichi Yusa ◽  
Hideyuki Noguchi ◽  
...  

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 424
Author(s):  
Jihye Mok ◽  
Dalsu Choi ◽  
Suk Ho Bhang

Here, we introduce an environmentally friendly way of fabricating carbon nanoparticles which can be utilized as conductive agent for lithium-ion batteries (LIBs). Polyethylene (PE), which comprises the largest portion of plastic waste, was used as a source for carbon nanoparticle synthesis. Sulfonation allowed chemical structural transformation of innately non-carbonizable PE into a carbonizable conformation, and carbon nanoparticles could be successfully derived from sulfonated PE. Then, PE-derived carbon nanoparticles were used as conductive agents for LIBs, and assembled cells exhibited stable performance. Even though the performance is not as good as Super-P, utilization of PE as a source of conductive agent for LIBs might provide an economical advantage to upcycle PE.


2021 ◽  
Vol 775 ◽  
pp. 138662
Author(s):  
Qinqin Liang ◽  
Lixuan Zhang ◽  
Man Zhang ◽  
Qichang Pan ◽  
Longchao Wang ◽  
...  

2021 ◽  
Vol 89 ◽  
pp. 68-87
Author(s):  
Limin Zhu ◽  
Zhen Li ◽  
Guochun Ding ◽  
Lingling Xie ◽  
Yongxia Miao ◽  
...  

2020 ◽  
Vol 59 (1) ◽  
pp. 477-487 ◽  
Author(s):  
Zhuang Liu ◽  
Haiyang Fu ◽  
Bo Gao ◽  
Yixuan Wang ◽  
Kui Li ◽  
...  

AbstractThis paper studies in-situ synthesis of Fe2O3/reduced graphene oxide (rGO) anode materials by different hydrothermal process.Scanning Electron Microscopy (SEM) analysis has found that different processes can control the morphology of graphene and Fe2O3. The morphologies of Fe2O3 prepared by the hydrothermal in-situ and oleic acid-assisted hydrothermal in-situ methods are mainly composed of fine spheres, while PVP assists The thermal in-situ law presents porous ellipsoids. Graphene exhibits typical folds and small lumps. X-ray diffraction analysis (XRD) analysis results show that Fe2O3/reduced graphene oxide (rGO) is generated in different ways. Also, the material has good crystallinity, and the crystal form of the iron oxide has not been changed after adding GO. It has been reduced, and a characteristic peak appears around 25°, indicating that a large amount of reduced graphene exists. The results of the electrochemical performance tests have found that the active materials prepared in different processes have different effects on the cycle performance of lithium ion batteries. By comprehensive comparison for these three processes, the electro-chemical performance of the Fe2O3/rGO prepared by the oleic acid-assisted hydrothermal method is best.


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