scholarly journals SEI-component formation on sub 5 nm sized silicon nanoparticles in Li-ion batteries: the role of electrode preparation, FEC addition and binders

2015 ◽  
Vol 17 (38) ◽  
pp. 24956-24967 ◽  
Author(s):  
Tony Jaumann ◽  
Juan Balach ◽  
Markus Klose ◽  
Steffen Oswald ◽  
Ulrike Langklotz ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Nanocrystalline Silicon ◽  
Li Ion Batteries ◽  
Li Ion

Nanocrystalline silicon electrodes were exposed to long-term cycling in Li-ion batteries under different conditions and their SEI formation was investigated by diverse techniques.

Role of Negative Electrode Porosity in Long-Term Aging of NMC//Graphite Li-Ion Batteries

2015 ◽  
Vol 162 (13) ◽  
pp. A7096-A7103 ◽  
Author(s):  
Pierre Bernard ◽  
Hervé Martinez ◽  
Cécile Tessier ◽  
Emmanuelle Garitte ◽  
Sylvain Franger ◽  
...  
Keyword(s):  
Negative Electrode ◽  
Li Ion Batteries ◽  
Li Ion

Role of the LiPF6 Salt for the Long-Term Stability of Silicon Electrodes in Li-Ion Batteries – A Photoelectron Spectroscopy Study

2013 ◽  
Vol 25 (3) ◽  
pp. 394-404 ◽  
Author(s):  
Bertrand Philippe ◽  
Rémi Dedryvère ◽  
Mihaela Gorgoi ◽  
Håkan Rensmo ◽  
Danielle Gonbeau ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Li Ion Batteries ◽  
Spectroscopy Study ◽  
Term Stability ◽  
Long Term Stability ◽  
Li Ion

Evaluation of NO-treated fossil carbons as possible anode materials for Li-ion batteries – role of prior activation

2007 ◽  
Vol 11 (1) ◽  
pp. 40-44
Author(s):  
M. Hofman ◽  
M. Walkowiak ◽  
L. Wachowski ◽  
B. Czajka ◽  
D. Waszak
Keyword(s):  
Anode Materials ◽  
Li Ion Batteries ◽  
Li Ion

Galactomannan binding agents for silicon anodes in Li-ion batteries

2015 ◽  
Vol 3 (22) ◽  
pp. 12023-12030 ◽  
Author(s):  
Martin K. Dufficy ◽  
Saad A. Khan ◽  
Peter S. Fedkiw
Keyword(s):  
Silicon Nanoparticles ◽  
Li Ion Batteries ◽  
Extraction Capacity ◽  
Silicon Anodes ◽  
Binding Agents ◽  
Li Ion

The high Li-extraction capacity can be owed to the favorable interactions between silicon nanoparticles and the galactomannan binders.

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.

Promotional role of B2O3 in enhancing hollow SnO2 anode performance for Li-ion batteries

2014 ◽  
Vol 251 ◽  
pp. 279-286 ◽  
Author(s):  
Ruiqing Liu ◽  
Deyu Li ◽  
Dong Tian ◽  
Guofeng Xia ◽  
Chen Wang ◽  
...  
Keyword(s):  
Li Ion Batteries ◽  
Li Ion

Long-Term Cycling Stability of 18650 Li-Ion Batteries Cells Using NMC811 Core@Shell Structure with Tetra-Materials

2021 ◽  
Vol MA2021-01 (4) ◽  
pp. 246-246
Author(s):  
Chirayu Khunrugsa ◽  
Poramane Chiochan ◽  
Farkfun Duriyasart ◽  
Chonticha Jangsan ◽  
Pattranit Kullawattanapokin ◽  
...  
Keyword(s):  
Shell Structure ◽  
Cycling Stability ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Core Shell Structure
Sign in / Sign up

Export Citation Format

Share Document