XPS-Surface Analysis of SEI Layers on Li-Ion Cathodes: Part I. Investigation of Initial Surface Chemistry

2018 ◽  
Vol 165 (5) ◽  
pp. A819-A832 ◽  
Author(s):  
Natalia Schulz ◽  
René Hausbrand ◽  
Lucangelo Dimesso ◽  
Wolfram Jaegermann
Keyword(s):  
Surface Chemistry ◽  
Surface Analysis ◽  
Initial Surface ◽  
Li Ion ◽  
Xps Surface Analysis

Surface chemistry of oxidised pyrite during grinding: ToF-SIMS and XPS surface analysis

2021 ◽  
Vol 170 ◽  
pp. 106992
Author(s):  
Shihong Xu ◽  
Massimiliano Zanin ◽  
William Skinner ◽  
Susana Brito e Abreu
Keyword(s):  
Surface Chemistry ◽  
Surface Analysis ◽  
Tof Sims ◽  
Xps Surface Analysis

XPS-Surface Analysis of SEI Layers on Li-Ion Cathodes: Part II. SEI-Composition and Formation inside Composite Electrodes

2018 ◽  
Vol 165 (5) ◽  
pp. A833-A846 ◽  
Author(s):  
Natalia Schulz ◽  
René Hausbrand ◽  
Carolin Wittich ◽  
Lucangelo Dimesso ◽  
Wolfram Jaegermann
Keyword(s):  
Surface Analysis ◽  
Composite Electrodes ◽  
Li Ion ◽  
Xps Surface Analysis

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.

scholarly journals The effect of nanoscaffold porosity and surface chemistry on the Li-ion conductivity of LiBH4–LiNH2/metal oxide nanocomposites

2020 ◽  
Vol 8 (39) ◽  
pp. 20687-20697
Author(s):  
Laura M. de Kort ◽  
Justine Harmel ◽  
Petra E. de Jongh ◽  
Peter Ngene
Keyword(s):  
Ionic Conductivity ◽  
Metal Oxide ◽  
Surface Chemistry ◽  
Ion Conductivity ◽  
Li Ion

Tuning the ionic conductivity of LiBH4–LiNH2/oxide nanocomposites by controlling the surface chemistry as well as the porosity of the metal oxide nanoscaffold materials.

Revealing the Dual Surface Reactions on a HE-NCM Li-Ion Battery Cathode and Their Impact on the Surface Chemistry of the Counter Electrode

2019 ◽  
Vol 11 (6) ◽  
pp. 6054-6065 ◽  
Author(s):  
Daniela Leanza ◽  
Carlos A. F. Vaz ◽  
Georgian Melinte ◽  
Xiaoke Mu ◽  
Petr Novák ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Counter Electrode ◽  
Surface Reactions ◽  
Li Ion Battery ◽  
Li Ion

scholarly journals Improved High-Temperature Performance and Surface Chemistry of Graphite/LiMn2O4 Li-Ion Cells by Fluorosilane-Based Electrolyte Additive

2015 ◽  
Vol 160 ◽  
pp. 347-356 ◽  
Author(s):  
Kiyofumi Yamagiwa ◽  
Daichi Morita ◽  
Naoaki Yabuuchi ◽  
Tatsuya Tanaka ◽  
Mika Fukunishi ◽  
...  
Keyword(s):  
High Temperature ◽  
Surface Chemistry ◽  
Electrolyte Additive ◽  
Temperature Performance ◽  
Li Ion

scholarly journals XPS surface analysis of V-P mixed oxide catalysts for the selective oxidation of butane.

1989 ◽  
pp. 1983-1989 ◽  
Author(s):  
Hidetaka MORISHIGE ◽  
Jun TAMAKI ◽  
Yasutake TERAOKA ◽  
Norio MIURA ◽  
Noboru YAMAZOE
Keyword(s):  
Selective Oxidation ◽  
Surface Analysis ◽  
Mixed Oxide ◽  
Oxide Catalysts ◽  
Mixed Oxide Catalysts ◽  
Xps Surface Analysis

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

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
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