Effects of precursor particle size on the performance of LiNi0.5Co0.2Mn0.3O2 cathode material

Surface modification on the electrode has a vital impact on lithium-ion batteries, and it is essential to probe the mechanism of the modified film on the surface of the electrode. In this study, a Li2O-2B2O3 film was coated on the surface of the cathode material by solution method. The cathode powders derived from co-precipitation method were calcined with various weight percent of the surface modified glass to form fine powder of single spinel phase with different particle size, size distribution and morphology. The thermogravimetry/differential thermal analysis was used to evaluate the appropriate heat treatment temperature. The structure was confirmed by the X-ray diffractometer along with the composition measured by the electron probe microanalyzer. From the field emission scanning electron microscope image and Laser Scattering measurements, the average particle size was in the range of 7-8µm. The electrochemical behavior of the cathode powder was examined by using two-electrode test cells consisted of a cathode, metallic lithium anode, and an electrolyte of 1M LiPF6. Cyclic charge/discharge testing of the coin cells, fabricated by both coated and un-coated cathode material, provided high discharge capacity. Furthermore, the coated cathode powder showed better cyclability than the un-coated one after the cyclic test. The introduction of the glass-coated cathode material revealed high discharge capacity and appreciably decreased the decay rate after cyclic test.

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Understanding alloy structure and composition in sinter-resistant AgPd@SiO2 encapsulated catalysts and their effect on catalytic properties

New Journal of Chemistry ◽

10.1039/c7nj03652c ◽

2017 ◽

Vol 41 (23) ◽

pp. 14652-14658 ◽

Cited By ~ 2

Author(s):

Sourik Mondal ◽

Thattarathody Rajesh ◽

Basab B. Dhar ◽

Markus Snellman ◽

Junjie Li ◽

...

Keyword(s):

Particle Size ◽

Alloy Composition ◽

Catalytic Properties ◽

Alloy Structure ◽

Precursor Particle ◽

Encapsulated Catalysts ◽

Catalytic Performances

Effects of precursor particle size, extent of alloying and alloy composition on AgPd@SiO2 catalytic performances.

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Synthesis of high-voltage spinel cathode material with tunable particle size and improved temperature durability for lithium ion battery

Journal of Power Sources ◽

10.1016/j.jpowsour.2014.03.089 ◽

2014 ◽

Vol 262 ◽

pp. 483-487 ◽

Cited By ~ 6

Author(s):

Yi-Chun Jin ◽

Ming-I Lu ◽

Tsung-Hsiung Wang ◽

Chang-Rung Yang ◽

Jenq-Gong Duh

Keyword(s):

Particle Size ◽

Cathode Material ◽

Lithium Ion Battery ◽

High Voltage ◽

Lithium Ion ◽

Spinel Cathode

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Effect of particle size and purity on the low temperature electrochemical performance of LiFePO4/C cathode material

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2016.04.070 ◽

2016 ◽

Vol 683 ◽

pp. 123-132 ◽

Cited By ~ 41

Author(s):

Nannan Zhao ◽

Yongsheng Li ◽

Xinxin Zhao ◽

Xiaoke Zhi ◽

Guangchuan Liang

Keyword(s):

Particle Size ◽

Low Temperature ◽

Electrochemical Performance ◽

Cathode Material ◽

Effect Of Particle Size

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Particle size-controllable microwave-assisted solvothermal synthesis of the high-voltage cathode material LiCoPO4 using water/ethylene glycol solvent blends

Solid State Sciences ◽

10.1016/j.solidstatesciences.2017.01.009 ◽

2017 ◽

Vol 65 ◽

pp. 100-109 ◽

Cited By ~ 17

Author(s):

Jennifer Ludwig ◽

Dominik Haering ◽

Marca M. Doeff ◽

Tom Nilges

Keyword(s):

Particle Size ◽

Ethylene Glycol ◽

Cathode Material ◽

High Voltage ◽

Solvothermal Synthesis ◽

Microwave Assisted ◽

Solvent Blends

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The effect of Y-211 precursor particle size on the microstructure and properties of Y–Ba–Cu–O bulk superconductors fabricated by seeded infiltration and growth

Superconductor Science and Technology ◽

10.1088/0953-2048/19/8/005 ◽

2006 ◽

Vol 19 (8) ◽

pp. 711-718 ◽

Cited By ~ 45

Author(s):

S Meslin ◽

K Iida ◽

N Hari Babu ◽

D A Cardwell ◽

J G Noudem

Keyword(s):

Particle Size ◽

Microstructure And Properties ◽

Precursor Particle ◽

Bulk Superconductors

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Effect of Heating Time on the Structural and Electrochemical Properties of LiFePO4 by Molten Salt Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.368-372.299 ◽

2008 ◽

Vol 368-372 ◽

pp. 299-301

Author(s):

Zheng Guang Zou ◽

Xiao Min Li ◽

Yi Wu ◽

Fei Long ◽

Dong Ye Yao

Keyword(s):

Particle Size ◽

Cathode Material ◽

Electrochemical Properties ◽

Molten Salt ◽

Salt Content ◽

Heating Time ◽

Narrow Particle Size Distribution ◽

Molten Salt Method ◽

Tap Density ◽

Lifepo4 Cathode

Well-crystallized LiFePO4 cathode materials were synthesized by NaCl-KCl molten salt method. The effect of heating time on the structure, morphology and electrochemical properties of the materials were studied in detail. Single olivine-type LiFePO4 phase was obtained, and the morphology and particle size of the powders could be controlled by changing the synthesis conditions. It was shown that LiFePO4 cathode material synthesized at 680°C for 3h with the salt content N=2 (defining the molar ratio of NaCl-KCl/LiFePO4 as N) had a narrow particle-size distribution and spherical or quasi-spherical shape. Meanwhile, the tap density of the cathode material reached the maximum of 1.501gcm-3. The charge-discharge test indicated that the initial charge and discharge specific capacity reached 138mAhg-1 and 125mAhg-1 respectively at the current density of 0.3mAcm-2.

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