Nanoscale Phase Separation, Cation Ordering, and Surface Chemistry in Pristine Li1.2Ni0.2Mn0.6O2 for Li-Ion Batteries

2013 ◽  
Vol 25 (11) ◽  
pp. 2319-2326 ◽  
Author(s):  
Meng Gu ◽  
Arda Genc ◽  
Ilias Belharouak ◽  
Dapeng Wang ◽  
Khalil Amine ◽  
...  
Keyword(s):  
Phase Separation ◽  
Surface Chemistry ◽  
Cation Ordering ◽  
Li Ion Batteries ◽  
Nanoscale Phase Separation ◽  
Li Ion

scholarly journals Impact of Surface Chemistry of Silicon Nanoparticles on the Structural and Electrochemical Properties of Si/Ni3.4Sn4 Composite Anode for Li-Ion Batteries

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 18
Author(s):  
Tahar Azib ◽  
Claire Thaury ◽  
Fermin Cuevas ◽  
Eric Leroy ◽  
Christian Jordy ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Electrochemical Properties ◽  
Large Scale ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Chemical Homogeneity ◽  
Electrochemical Behaviors ◽  
Pure Silicon ◽  
Li Ion

Embedding silicon nanoparticles in an intermetallic matrix is a promising strategy to produce remarkable bulk anode materials for lithium-ion (Li-ion) batteries with low potential, high electrochemical capacity and good cycling stability. These composite materials can be synthetized at a large scale using mechanical milling. However, for Si-Ni3Sn4 composites, milling also induces a chemical reaction between the two components leading to the formation of free Sn and NiSi2, which is detrimental to the performance of the electrode. To prevent this reaction, a modification of the surface chemistry of the silicon has been undertaken. Si nanoparticles coated with a surface layer of either carbon or oxide were used instead of pure silicon. The influence of the coating on the composition, (micro)structure and electrochemical properties of Si-Ni3Sn4 composites is studied and compared with that of pure Si. Si coating strongly reduces the reaction between Si and Ni3Sn4 during milling. Moreover, contrary to pure silicon, Si-coated composites have a plate-like morphology in which the surface-modified silicon particles are surrounded by a nanostructured, Ni3Sn4-based matrix leading to smooth potential profiles during electrochemical cycling. The chemical homogeneity of the matrix is more uniform for carbon-coated than for oxygen-coated silicon. As a consequence, different electrochemical behaviors are obtained depending on the surface chemistry, with better lithiation properties for the carbon-covered silicon able to deliver over 500 mAh/g for at least 400 cycles.

ChemInform Abstract: Correlation Between Surface Chemistry and Performance of Graphite Negative Electrodes for Li Ion Batteries

ChemInform ◽  
2010 ◽  
Vol 31 (3) ◽  
pp. no-no
Author(s):  
D. Aurbach ◽  
B. Markovsky ◽  
I. Weissman ◽  
E. Levi ◽  
Y. Ein-Eli
Keyword(s):  
Surface Chemistry ◽  
Li Ion Batteries ◽  
Negative Electrodes ◽  
Li Ion ◽  
And Performance

Thermodynamic and kinetic studies of LiNi0.5Co0.2Mn0.3O2 as a positive electrode material for Li-ion batteries using first principles

2016 ◽  
Vol 18 (9) ◽  
pp. 6799-6812 ◽  
Author(s):  
Mudit Dixit ◽  
Monica Kosa ◽  
Onit Srur Lavi ◽  
Boris Markovsky ◽  
Doron Aurbach ◽  
...  
Keyword(s):  
First Principles ◽  
Kinetic Studies ◽  
Cation Ordering ◽  
Li Ion Batteries ◽  
Diffusion Kinetics ◽  
Multi Scale ◽  
Positive Electrode Material ◽  
Li Ion ◽  
Kinetics Of ◽  
And Diffusion

The cation ordering, thermodynamics and diffusion kinetics of LiNi0.5Co0.2Mn0.3O2 (NCM-523) are studied using multi-scale funnel approach with vdW corrections.

scholarly journals Probing Surface Chemistry Changes Using LiCoO2-only Electrodes in Li-Ion Batteries

2018 ◽  
Vol 165 (7) ◽  
pp. A1377-A1387 ◽  
Author(s):  
Magali Gauthier ◽  
Pinar Karayaylali ◽  
Livia Giordano ◽  
Shuting Feng ◽  
Simon F. Lux ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Li Ion Batteries ◽  
Li Ion

On the correlation between surface chemistry and performance of graphite negative electrodes for Li ion batteries

1999 ◽  
Vol 45 (1-2) ◽  
pp. 67-86 ◽  
Author(s):  
D Aurbach ◽  
B Markovsky ◽  
I Weissman ◽  
E Levi ◽  
Y Ein-Eli
Keyword(s):  
Surface Chemistry ◽  
Li Ion Batteries ◽  
Negative Electrodes ◽  
Li Ion ◽  
And Performance

Effect of Cooling Rates on Phase Separation in 0.5Li2MnO3·0.5LiCoO2 Electrode Materials for Li-Ion Batteries

2014 ◽  
Vol 26 (11) ◽  
pp. 3565-3572 ◽  
Author(s):  
Brandon R. Long ◽  
Jason R. Croy ◽  
Fulya Dogan ◽  
Matthew R. Suchomel ◽  
Baris Key ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrode Materials ◽  
Li Ion Batteries ◽  
Cooling Rates ◽  
Li Ion

ChemInform Abstract: On the Surface Chemistry of Cathode Materials in Li-Ion Batteries

ChemInform ◽  
2016 ◽  
Vol 47 (8) ◽  
pp. no-no
Author(s):  
Susai Francis Amalraj ◽  
Ronit Sharabi ◽  
Hadar Sclar ◽  
Doron Aurbach
Keyword(s):  
Surface Chemistry ◽  
Cathode Materials ◽  
Li Ion Batteries ◽  
Li Ion

Effect of Flame-Retarding Additives on Surface Chemistry of Electrodes in Li-Ion Batteries

2019 ◽  
Vol 33 (23) ◽  
pp. 63-71
Author(s):  
Nguyen Dang Nam ◽  
In Jun Park ◽  
Jung-Gu Kim ◽  
H. S. Kim ◽  
S. I. Moon
Keyword(s):  
Surface Chemistry ◽  
Li Ion Batteries ◽  
Li Ion
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