Electrochemical Performance Enhancement of Sodium-Ion Batteries Fabricated With NaNi1/3Mn1/3Co1/3O2 Cathodes Using Support Vector Regression-Simplex Algorithm Approach

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
C. Ruhatiya ◽  
Surinder Singh ◽  
Ankit Goyal ◽  
Xiaodong Niu ◽  
Thi Ngoc Hanh Nguyen ◽  
...  
Keyword(s):  
Cathode Material ◽  
Support Vector Regression ◽  
Performance Enhancement ◽  
Sol Gel ◽  
Simplex Algorithm ◽  
Sodium Ion ◽  
Support Vector ◽  
Sodium Ion Batteries ◽  
Li Ion Batteries ◽  
Li Ion

Abstract Sodium-ion batteries have low energy density, low capacity, and inferior cycling performance when compared with Li-ion batteries. However, lithium depletion poses a serious problem for the production and cost of Li-ion batteries. In the present work, NaNi1/3Mn1/3Co1/3O2 was synthesized as the cathode material for Na-ion batteries using the sol–gel method. The conventional cathode material used in Na-ion batteries had been replaced with the synthesized cathode material, and the data had been collected by performing charging/discharging experiments. The support vector regression synchronized cross-validation simplex algorithm cluster was then used for predictive modeling and optimization of the fabrication process of the positive electrode material of sodium-ion batteries. The stable normal distribution without any skewness validated the robustness of the model for better accuracy and stability of the Na-ion batteries. The optimized value of capacity is 176 mAh/g for 99 cycles, which is better than those of conventional batteries used for commercial storage purposes.

High performance NaxCoO2 as a cathode material for rechargeable sodium batteries

2015 ◽  
Vol 3 (35) ◽  
pp. 18059-18063 ◽  
Author(s):  
B. Venkata Rami Reddy ◽  
R. Ravikumar ◽  
C. Nithya ◽  
S. Gopukumar
Keyword(s):  
Cathode Material ◽  
High Performance ◽  
Sol Gel ◽  
Chelating Agent ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Gel Combustion ◽  
Sodium Batteries ◽  
Combustion Technique

A high performance NaxCoO2 cathode material for sodium ion batteries has been synthesized using a sol–gel combustion technique using glycine as a chelating agent.

Low-Temperature Performance of the Li[Li0.2Co0.4Mn0.4]O2 Cathode Material Studied for Li-Ion Batteries

2011 ◽  
Vol 347-353 ◽  
pp. 3662-3665 ◽  
Author(s):  
Yu Hui Wang ◽  
Zhe Li ◽  
Kai Zhu ◽  
Gang Li ◽  
Ying Jin Wei ◽  
...  
Keyword(s):  
Low Temperature ◽  
Cathode Material ◽  
Room Temperature ◽  
Sol Gel ◽  
Cycle Performance ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
Capacity Retention ◽  
X Ray ◽  
Li Ion

The Li[Li0.2Co0.4Mn0.4]O2 cathode material was prepared by a sol-gel method. Combinative X-ray diffraction (XRD) studies showed that the material was a solid solution of LiCoO2 and Li2MnO3. The material showed a reversible discharge capacity of 155.0 mAhg−1 at -20 °C, which is smaller than that at room temperature (245.5 mAhg−1). However, the sample exhibited capacity retention of 96.3 % at -20 °C, only 74.2 % at 25 °C. The good electrochemical cycle performance at low temperature was due to the inexistence of Mn3+ in the material.

scholarly journals An overview of bio-interface electrolyte and Li2FePO4F as cathode in Li-ion batteries

2019 ◽  
Vol 9 (2) ◽  
pp. 3866-3873
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Sol Gel ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
View Point ◽  
Iron Nickel ◽  
Li Ion ◽  
Charge Discharge

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).

SYNTHESIS AND PROPERTIES OF Li2MnSiO4 COMPOSITE CATHODE MATERIAL FOR SAFE Li-ION BATTERIES

2011 ◽  
Vol 04 (02) ◽  
pp. 135-138 ◽  
Author(s):  
MARCIN MOLENDA ◽  
MICHAŁ ŚWIȨTOSŁAWSKI ◽  
ALICJA RAFALSKA-ŁASOCHA ◽  
ROMAN DZIEMBAJ
Keyword(s):  
Cathode Material ◽  
Pechini Method ◽  
Sol Gel ◽  
Composite Cathode ◽  
Carbon Layer ◽  
Li Ion Batteries ◽  
Covalent Bonds ◽  
Organic Precursor ◽  
Synthesis Conditions ◽  
Li Ion

Lithium silicates Li 2 MnSiO 4 (where M is a 3d metal) with their theoretical capacity up to 333 mAh⋅g-1 and high chemical stability, thanks to a presence of strong covalent bonds Si – O , seem to be a good potential cathode material for Li -ion batteries. The main drawback of those materials is their low electric conductivity which can be enhanced by coating the material with conductive carbon layer (CCL). This work concerns the synthesis of CCL / Li 2 MnSiO 4 composite material and investigation of its physicochemical properties. The material was successfully produced using sol-gel Pechini method. In order to find the best way of receiving Li 2 MnSiO 4 product various synthesis conditions were applied. CCL / Li 2 MnSiO 4 composite was produced in a one-step process using organic precursor matrix as a source of carbon. Both Li 2 MnSiO 4 material and CCL/ Li 2 MnSiO 4 composite were investigated using thermal analysis (EGA-TGA/DTG/SDTA), X-ray diffraction (XRD) and electrical conductivity measurements to find the relations between structure, morphology and electrochemical properties.

scholarly journals Iron nanoparticle templates for constructing 3D graphene framework with enhanced performance in sodium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21780-21787
Author(s):  
Benoît D. L. Campéon ◽  
Chen Wang ◽  
Yuta Nishina
Keyword(s):  
Electrochemical Performance ◽  
Three Dimensional ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Li Ion Batteries ◽  
3D Graphene ◽  
Iron Nanoparticle ◽  
Li Ion

This study examines the synthesis and electrochemical performance of three-dimensional graphene for Li-ion batteries and Na-ion batteries.

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