scholarly journals Nanostructured diatom earth SiO2 negative electrodes with superior electrochemical performance for lithium ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (55) ◽  
pp. 33490-33498
Author(s):  
Maria Valeria Blanco ◽  
Viktor Renman ◽  
Fride Vullum-Bruer ◽  
Ann Mari Svensson
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Ball Milling ◽  
Carbon Coating ◽  
Diatomaceous Earth ◽  
Lithium Ion ◽  
Electrochemical Activation ◽  
Negative Electrodes

Diatomaceous earth SiO2 anodes with superior electrochemical performance are obtained by ball milling, carbon coating and electrochemical activation of SiO2 particles.

Electrochemical Properties of Carbon-Coated NbO2 as a Negative Electrode for Lithium-Ion Batteries

2016 ◽  
Vol 724 ◽  
pp. 87-91 ◽  
Author(s):  
Chang Su Kim ◽  
Yong Hoon Cho ◽  
Kyoung Soo Park ◽  
Soon Ki Jeong ◽  
Yang Soo Kim
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Ball Milling ◽  
Carbon Coating ◽  
Electrochemical Impedance ◽  
Active Material ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Transfer Resistance ◽  
Carbon Coated

We investigated the electrochemical properties of carbon-coated niobium dioxide (NbO2) as a negative electrode material for lithium-ion batteries. Carbon-coated NbO2 powders were synthesized by ball-milling using carbon nanotubes as the carbon source. The carbon-coated NbO2 samples were of smaller particle size compared to the pristine NbO2 samples. The carbon layers were coated non-uniformly on the NbO2 surface. The X-ray diffraction patterns confirmed that the inter-layer distances increased after carbon coating by ball-milling. This lead to decreased charge-transfer resistance, confirmed by electrochemical impedance spectroscopy, allowing electrons and lithium-ions to quickly transfer between the active material and electrolyte. Electrochemical performance, including capacity and initial coulombic efficiency, was therefore improved by carbon coating by ball-milling.

Electrochemical performance of DVB-modified SiOC and SiCN polymer-derived negative electrodes for lithium-ion batteries

2013 ◽  
Vol 106 ◽  
pp. 101-108 ◽  
Author(s):  
Guanwei Liu ◽  
Jan Kaspar ◽  
Lukas Mirko Reinold ◽  
Magdalena Graczyk-Zajac ◽  
Ralf Riedel
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Negative Electrodes

Effect of Phosphorus-Doping on Electrochemical Performance of Silicon Negative Electrodes in Lithium-Ion Batteries

2016 ◽  
Vol 8 (11) ◽  
pp. 7125-7132 ◽  
Author(s):  
Yasuhiro Domi ◽  
Hiroyuki Usui ◽  
Masahiro Shimizu ◽  
Yuta Kakimoto ◽  
Hiroki Sakaguchi
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Phosphorus Doping ◽  
Negative Electrodes

Enhancing the performance of Li3VO4 by combining nanotechnology and surface carbon coating for lithium ion batteries

2015 ◽  
Vol 3 (21) ◽  
pp. 11253-11260 ◽  
Author(s):  
Gaoqi Shao ◽  
Lin Gan ◽  
Ying Ma ◽  
Huiqiao Li ◽  
Tianyou Zhai
Keyword(s):  
Lithium Ion Batteries ◽  
Ball Milling ◽  
Carbon Coating ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Surface Carbon ◽  
Conductive Additive ◽  
Carbon Coated ◽  
Coating Layers

Carbon-coated nanosized Li3VO4 was successfully obtained by combination of ball milling and CVD techniques. The thin and full coating layers of carbon can greatly decrease the amount of conductive additive in the electrode and enhance the first coulombic efficiency, specific capacity and rate performances of Li3VO4.

Conformal carbon coating on WS2 nanotubes for excellent electrochemical performance of lithium-ion batteries

2018 ◽  
Vol 30 (3) ◽  
pp. 035401 ◽  
Author(s):  
Jinqiang Zhang ◽  
Hagit Sade ◽  
Yufei Zhao ◽  
Adrian T Murdock ◽  
Avi Bendavid ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Carbon Coating ◽  
Lithium Ion ◽  
Excellent Electrochemical Performance
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