Investigation on Structure and Electrochemical Properties of Li[Ni1/3Co1/3Mn1/3]O2 for Lithium Ion Batteries

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.

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

Biointerface Research in Applied Chemistry ◽

10.33263/briac92.866873 ◽

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).

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Effect of Na+ and K+ co-doping on the structure and electrochemical behaviors of LiFePO4/C cathode material for lithium-ion batteries

RSC Advances ◽

10.1039/c6ra11800c ◽

2016 ◽

Vol 6 (103) ◽

pp. 101477-101484 ◽

Cited By ~ 14

Author(s):

Ali Reza Madram ◽

Reza Daneshtalab ◽

Mohammad Reza Sovizi

Keyword(s):

Cathode Material ◽

Lithium Ion Batteries ◽

Lithium Iron Phosphate ◽

Sol Gel ◽

Lithium Ion ◽

Iron Phosphate ◽

Electrochemical Behaviors ◽

Gel Method ◽

Co Doping ◽

Co Doped

Lithium iron phosphate (LiFePO4) composites co-doped with Na+ and K+, Li1−x−yNaxKyFePO4/C (0 ≤ x ≤ 0.03, 0 ≤ y ≤ 0.03, x + y = 0.03), are synthesized through a sol–gel method and tested as a promising cathode material for lithium-ion batteries (LIBs).

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Synthesis of β-LiVOPO4/C by Sol-gel Method and Microwave Sintering as Cathode Material for Lithium Ion Batteries

International Journal of Electrochemical Science ◽

10.20964/2017.11.87 ◽

2017 ◽

pp. 10107-10114 ◽

Cited By ~ 4

Author(s):

Zhonggang Liu ◽

Keyword(s):

Cathode Material ◽

Lithium Ion Batteries ◽

Microwave Sintering ◽

Sol Gel ◽

Lithium Ion ◽

Gel Method ◽

Sol Gel Method

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Enhanced high rate performance of Li[Li0.17Ni0.2Co0.05Mn0.58−xAlx]O2−0.5x cathode material for lithium-ion batteries

RSC Advances ◽

10.1039/c5ra03971a ◽

2015 ◽

Vol 5 (61) ◽

pp. 49651-49656 ◽

Cited By ~ 19

Author(s):

Y. L. Wang ◽

X. Huang ◽

F. Li ◽

J. S. Cao ◽

S. H. Ye

Keyword(s):

Cathode Material ◽

Lithium Ion Batteries ◽

Cathode Materials ◽

Sol Gel ◽

Lithium Ion ◽

High Rate ◽

Rate Performance ◽

High Rate Performance

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.

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Preparation and Characterization of High-Voltage Cathode Material LiNi0.5Mn1.5O4 for Lithium Ion Batteries

Materials Science Forum ◽

10.4028/www.scientific.net/msf.953.121 ◽

2019 ◽

Vol 953 ◽

pp. 121-126

Author(s):

Zhe Chen ◽

Quan Fang Chen ◽

Sha Ne Zhang ◽

Guo Dong Xu ◽

Mao You Lin ◽

...

Keyword(s):

Cathode Material ◽

Lithium Ion Batteries ◽

Cathode Materials ◽

Synthesis Method ◽

Rate Capability ◽

Lithium Ion ◽

Diffusion Path ◽

High Energy ◽

High Energy Density ◽

Charge Discharge

High energy density and rechargeable lithium ion batteries are attracting widely interest in renewable energy fields. The preparation of the high performance materials for electrodes has been regarded as the most challenging and innovative aspect. By utilizing a facile combustion synthesis method, pure nanostructure LiNi0.5Mn1.5O4 cathode material for lithium ion batteries were successfully fabricated. The crystal phase of the samples were characterized by X-Ray Diffraction, and micro-morphology as well as electrochemistry properties were also evaluated using FE-SEM, electrochemical charge-discharge test. The result shows the fabricated LiNi0.5Mn1.5O4 cathode materials had outstanding crystallinity and near-spherical morphologies. That obtained LiNi0.5Mn1.5O4 samples delivered an initial discharge capacity of 137.2 mAhg-1 at the 0.1 C together with excellent cycling stability and rate capability as positive electrodes in a lithium cell. The superior electrochemical performance of the as-prepared samples are owing to nanostructure particles possessing the shorter diffusion path for Li+ transport, and the nanostructure lead to large contact area to effectively improve the charge/discharge properties and the rate property. It is demonstrated that the as-prepared nanostructure LiNi0.5Mn1.5O4 samples have potential as cathode materials of lithium-ion battery for future new energy vehicles.

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