Enhanced electrochemical performance of LiNi0.6Co0.2Mn0.2O2 cathode materials by ultrasonic-assisted co-precipitation method

Fe3O4/reduced graphene oxide (RGO) composites with superior lithium storage capability were successfully prepared by a simple co-precipitation method.

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Effective enhancement of the electrochemical performance of layered cathode Li1.5Mn0.75Ni0.25O2.5via a novel facile molten salt method

RSC Advances ◽

10.1039/c5ra06419h ◽

2015 ◽

Vol 5 (72) ◽

pp. 58528-58535 ◽

Cited By ~ 2

Author(s):

Zhuo Zheng ◽

Wei-Bo Hua ◽

Shi-Xuan Liao ◽

Yan-Jun Zhong ◽

En-Hui Wang ◽

...

Keyword(s):

Electrochemical Performance ◽

Molten Salt ◽

Cathode Materials ◽

Precipitation Method ◽

Molten Salt Method ◽

Synthetic Process ◽

Co Precipitation

A series of nanocrystalline lithium-rich cathode materials Li1.5Mn0.75Ni0.25O2.5 have been prepared by a novel synthetic process, which combines the co-precipitation method and a modified molten salt method.

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Electrochemical Performance of Li[Ni0.7Co0.1Mn0.2]O2 Cathode Materials Using a Co-Precipitation Method

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2013.7258 ◽

2013 ◽

Vol 13 (5) ◽

pp. 3303-3306 ◽

Cited By ~ 1

Author(s):

Jeong-Min Kim ◽

Bong-Soo Jin ◽

Hoe-Jin Koo ◽

Jae-Man Choi ◽

Hyun-Soo Kim

Keyword(s):

Electrochemical Performance ◽

Cathode Materials ◽

Precipitation Method ◽

Co Precipitation

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Preparation and Electrochemical Performance of Mg-Doped LiNi0.4Co0.2Mn0.4O2 Cathode Materials by Urea Co-Precipitation

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.519.152 ◽

2012 ◽

Vol 519 ◽

pp. 152-155 ◽

Cited By ~ 3

Author(s):

Qian Zhang ◽

Yan Sheng Zheng ◽

Sheng Kui Zhong

Keyword(s):

Electrochemical Performance ◽

Layered Structure ◽

Cathode Materials ◽

Precipitation Method ◽

Electrochemical Performances ◽

Sem Images ◽

Transfer Resistance ◽

Co Precipitation ◽

Charge Discharge ◽

Mg Doped

The Mg-doped LiNi0.4Co0.2-xMn0.4MgxO2 cathode materials (x=0, 0.01, 0.02 and 0.03) were synthesized by a urea co-precipitation method. Its structure and electrochemical properties were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), and electrochemical performance tests. XRD studies indicate that the Mg-doped LiNi0.4Co0.2Mn0.4O2 samples perform the same layered structure as the undoped LiNi0.4Co0.2Mn0.4O2. SEM images show that the particle size of Mg-doped LiNi0.4Co0.2Mn0.4O2 is smaller than the undoped LiNi0.4Co0.2Mn0.4O2 sample. Charge-discharge tests confirm that the rate capacity and cycling performance of LiNi0.4Co0.2-xMn0.4MgxO2 are improved by Mg-doped. The optimal doping content of Mg is x=0.02 in the LiNi0.4Co0.2-xMn0.4MgxO2 samples, which can achieve high initial charge-discharge capacity and good cyclic stability. The electrode reaction reversibility was enhanced, and the charge transfer resistance was decreased through the Mg-doping. The improved electrochemical performances of the Mg-doped LiNi0.4Co0.2Mn0.4O2 cathode materials are attributed to the addition of Mg2+ ion by stabilizing the layered structure.

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