Aluminum doped Na3V2(PO4)2F3 via sol–gel Pechini method as a cathode material for lithium ion batteries

2017 ◽  
Vol 83 (2) ◽  
pp. 405-412 ◽  
Author(s):  
Nayely Pineda-Aguilar ◽  
Víctor J. Gallegos-Sánchez ◽  
Eduardo M. Sánchez ◽  
Luis Carlos Torres-González ◽  
Lorena L. Garza-Tovar
2007 ◽  
Vol 336-338 ◽  
pp. 455-458
Author(s):  
Xiu Juan Shi ◽  
Yong Ping Zheng ◽  
Fei Yu Kang ◽  
Xin Lu Li ◽  
Wan Ci Shen

Cathode material Li[Ni1/3Co1/3Mn1/3]O2 for lithium-ion batteries with layered hexagonal structure was successfully synthesized in sol-gel way. The influences of calcination temperature (from 700° to 1000°C) on the structure and electrochemical behaviors of Li[Ni1/3Co1/3Mn1/3]O2 were extensively investigated. The results of XRD show that all samples are isostructural with α-NaFeO2 with a space group R-3m. XPS analysis shows that the oxidation states of Co and Mn were Co3+ and Mn4+ respectively, while Ni exists as Ni2+ and Ni3+. The charge-discharge experiments show that the sample calcined at 850°C delivers 194.8mAh/g in the first cycle at C/5 rate in 2.5-4.3V potential range.


RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49651-49656 ◽  
Author(s):  
Y. L. Wang ◽  
X. Huang ◽  
F. Li ◽  
J. S. Cao ◽  
S. H. Ye

Pristine LNCM and LNCMA as Li-rich cathode materials for lithium ion batteries were synthesized via a sol–gel route. The Al-substituted LNCM sample exhibits an enhanced high rate performance and superior cyclability.


2010 ◽  
Vol 195 (19) ◽  
pp. 6854-6859 ◽  
Author(s):  
Jianqing Zhao ◽  
Jianping He ◽  
Xiaochun Ding ◽  
Jianhua Zhou ◽  
Yi’ou Ma ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (36) ◽  
pp. 28662-28669 ◽  
Author(s):  
Chuanliang Wei ◽  
Wen He ◽  
Xudong Zhang ◽  
Shujiang Liu ◽  
Chao Jin ◽  
...  

A biocarbon coated Li3V2(PO4)3 (LVP-C) cathode with high electrochemical performance was synthesized by a sol–gel method using recycled tea as both structural template and carbon source.


2019 ◽  
Vol 9 (2) ◽  
pp. 3866-3873

Composites of {[(1-x-y) LiFe0.333Ni0.333 Co0.333] PO4}, xLi2FePO4F and yLiCoPO4system were synthesized using the sol-gel method. Stoichiometric weights of the mole-fraction of LiOH, FeCl2·4H2O and H3PO4, LiCl, Ni(NO3)2⋅6H2O, Co(Ac)2⋅4H2O, as starting materials of lithium, Iron, Nickel , and Cobalt, in 7 samples of the system, respectively. We exhibited Li1.167 Ni0.222 Co0.389 Fe0.388 PO4 is the best composition for cathode material in this study. Obviously, the used weight of cobalt in these samples is lower compared with LiCoO2 that is an advantage in view point of cost in this study. Charge-discharge haracteristics of the mentioned cathode materials were investigated by performing cycle tests in the range of 2.4–3.8 V (versus Li/Li+). Our results confirmed, although these kind systems can help for removing the disadvantage of cobalt which mainly is its cost and toxic, the performance of these kind systems are similar to the commercial cathode materials in Lithium Ion batteries (LIBs).


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