Enhanced fast charge–discharge performance of Li4Ti5O12 as anode materials for lithium-ion batteries by Ce and CeO2 modification using a facile method

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37367-37376 ◽  
Author(s):  
Ting-Feng Yi ◽  
Jin-Zhu Wu ◽  
Mei Li ◽  
Yan-Rong Zhu ◽  
Ying Xie ◽  
...  

Ce and CeO2in situ modified Li4Ti5O12 with fast charge–discharge performance for lithium-ion batteries were prepared by a solid-state method. The improved performance are found to be due to the increased ionic and electronic conductivity.

2015 ◽  
Vol 3 (46) ◽  
pp. 23368-23375 ◽  
Author(s):  
Lin Hu ◽  
Jinlong Yang ◽  
Ibrahim Saana Amiinu ◽  
Xiaochun Kang ◽  
Wei Zhang ◽  
...  

The kinetics towards charge transfer and lithium ion diffusion are effectively enhanced with in situ adding small amounts of LiFeBO3, leading to a remarkably improved charge–discharge performance of Li2FeSiO4 as advanced cathode materials for lithium ion batteries.


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 ◽  
Author(s):  
yitao lou ◽  
XianFa Rao ◽  
Jianjun Zhao ◽  
Jun Chen ◽  
Baobao Li ◽  
...  

In order to develop novel fast charge/discharge carbon anode materials, an organic hard carbon material (PTCDA-1100) is obtained by calcination of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) at high temperature of 1100 oC....


Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13343-13353 ◽  
Author(s):  
Xing Li ◽  
Jiatian Fu ◽  
Yuping Sun ◽  
Mei Sun ◽  
Shaobo Cheng ◽  
...  

Electrochemical properties of core/branch-structured VS2 nanosheets@CNTs and the in situ investigation of the corresponding dynamic structural evolutions.


Nano Energy ◽  
2015 ◽  
Vol 16 ◽  
pp. 235-246 ◽  
Author(s):  
Jingjing Ma ◽  
Yu-Shi He ◽  
Weimin Zhang ◽  
Jiulin Wang ◽  
Xiaowei Yang ◽  
...  

2013 ◽  
Vol 277 ◽  
pp. 25-29 ◽  
Author(s):  
Mei Zhang ◽  
Yuhong Jin ◽  
Qianqian Wen ◽  
Cheng Chen ◽  
Mengqiu Jia

2018 ◽  
Vol 6 (16) ◽  
pp. 7070-7079 ◽  
Author(s):  
Long Pan ◽  
Zheng-Wei Zhou ◽  
Yi-Tao Liu ◽  
Xu-Ming Xie

A universal strategy is proposed for thein situsynthesis of TiO2(B) nanosheets on pristine carbon nanomaterials. Benefiting from a remarkable synergistic effect, the resulting nanohybrids exhibit superior high-rate lithium storage performance. In this sense, our strategy may open the door to next-generation, high-power and high-energy anode materials for lithium-ion batteries.


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