Synergistic effect of bulk phase doping and layered-spinel structure formation on improving electrochemical performance of Li-Rich cathode material

Author(s):  
Bing Huang ◽  
Meng Wang ◽  
Guodong Xu ◽  
Lin Hu ◽  
Lin Chen ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6372-6377 ◽  
Author(s):  
Dan Zhan ◽  
Ying Liang ◽  
Ping Cui ◽  
Zuoan Xiao

Highly crystalline Al-doped LiMn2O4 nanorods shows capacity retention ratio of 70% with 3 C current rate at 50 °C, maintaining the spinel structure and the nanorod morphology with highly crystallinity after 500 discharge/charge cycles.


2021 ◽  
Author(s):  
Feifei Xing ◽  
Xixun Shen ◽  
Yongxiang Chen ◽  
Xuran Liu ◽  
TianTian Chen ◽  
...  

ZnNi0.5Mn0.5CoO4@C with a spinel structure was made via a sol–gel and high-temperature sintering process exhibits excellent electrochemical performance due to reversible multivalence redox transitions (Co4+/Co3+, Ni4+/Ni3+/Ni2+, and Mn4+/Mn3+).


The authors' methodic for assessing the role of chemical and physic-chemical factors during the structure formation of gypsum stone is presented in the article. The methodic is also makes it possible to reveal the synergistic effect and to determine the ranges of variation of controls factors that ensure maximum values of such effect. The effect of a micro-sized modifier based on zinc hydro-silicates on the structure formation of building gypsum is analyzed and corresponding dependencies are found. It is shown that effects of influence of modifier on the properties of gypsum compositions are determined by chemical properties of modifier. Among the mentioned properties are sorption characteristics (which depend on the amount of silicic acid and its state) and physicochemical properties - the ability to act as a substrate during crystal formation. The proposed method can also be extended to other binding substances and materials. This article contributes to the understanding of the processes that occur during the structure formation of composites, which will make it possible to control the structure formation in the future, obtaining materials with a given set of properties.


2012 ◽  
Vol 27 (8) ◽  
pp. 838-842 ◽  
Author(s):  
Fei MOU ◽  
Xue-Lin YANG ◽  
Zhong-Xu DAI ◽  
Lu-Lu ZHANG ◽  
Zhao-Yin WEN

Author(s):  
Daqiang Wang ◽  
Zhenguo Wu ◽  
Wei Xiang ◽  
Yuxia Liu ◽  
Gongke Wang ◽  
...  

2021 ◽  
Vol 373 ◽  
pp. 137911
Author(s):  
S. Krishna Kumar ◽  
Sourav Ghosh ◽  
Madhushri Bhar ◽  
Ajay K. Kavala ◽  
Sivaraman Patchaiyappan ◽  
...  

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