Porous Li4Ti5O12/ Reduced Graphene Oxide Anode Materials with Enhanced Rate Capability and Cyclability

2014 ◽  
2019 ◽  
Vol 3 (5) ◽  
pp. 1258-1268 ◽  
Author(s):  
Zhongqiang Zhao ◽  
Xin Cai ◽  
Xiaoyuan Yu ◽  
Hongqiang Wang ◽  
Qingyu Li ◽  
...  

Novel core/shell structured silicon/reduced graphene oxide anode materials were fabricated through a facile zinc-assisted mechanochemical route.


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Junyong Wang ◽  
Qinglin Deng ◽  
Mengjiao Li ◽  
Kai Jiang ◽  
Jinzhong Zhang ◽  
...  

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.


2021 ◽  
Vol MA2021-02 (4) ◽  
pp. 511-511
Author(s):  
Ketsuda Kongsawatvoragul ◽  
Worapol Tejangkura ◽  
Chonticha Jangsan ◽  
Pattranit Kullawattanapokin ◽  
Poramane Chiochan ◽  
...  

Author(s):  
Tingjiao Xiao ◽  
Fengjin Yi ◽  
Mingzhi Yang ◽  
Weiliang Liu ◽  
Mei Li ◽  
...  

The “shuttle effect” and sluggish reaction kinetics of lithium polysulfides lead to inferior cycling performance and rate capability of Li-S batteries, which hurdles their practical application. Herein, a composite of...


2017 ◽  
Vol 5 (35) ◽  
pp. 18707-18715 ◽  
Author(s):  
Jesse S. Ko ◽  
Vicky V. T. Doan-Nguyen ◽  
Hyung-Seok Kim ◽  
Xavier Petrissans ◽  
Ryan H. DeBlock ◽  
...  

Na-ion charge-storage kinetics of polyol-derived Na2FePO4F are enhanced by using a nanocomposite comprising nanoparticles and reduced graphene oxide.


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