scholarly journals Modified SiO hierarchical structure materials with improved initial coulombic efficiency for advanced lithium-ion battery anodes

RSC Advances ◽  
2019 ◽  
Vol 9 (20) ◽  
pp. 11369-11376 ◽  
Author(s):  
Lizhao Xie ◽  
Hui Liu ◽  
Shaoxiong Lin ◽  
Xulai Yang ◽  
Meizhou Qi ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Hierarchical Structure ◽  
High Performance ◽  
Carbon Coating ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Simple Method ◽  
Initial Coulombic Efficiency

A simple method of prelithiation of SiO along with carbon coating to achieve high performance SiO-based materials.

scholarly journals Achieving High-Performance Spherical Natural Graphite Anode through a Modified Carbon Coating for Lithium-Ion Batteries

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1946 ◽  
Author(s):  
Hae-Jun Kwon ◽  
Sang-Wook Woo ◽  
Yong-Ju Lee ◽  
Je-Young Kim ◽  
Sung-Man Lee
Keyword(s):  
High Performance ◽  
Carbon Coating ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Rate Performance ◽  
Natural Graphite ◽  
Artificial Graphite ◽  
Ag Electrodes ◽  
Natural Graphite Anode

The electrochemical performance of modified natural graphite (MNG) and artificial graphite (AG) was investigated as a function of electrode density ranging from 1.55 to 1.7 g∙cm−3. The best performance was obtained at 1.55 g∙cm−3 and 1.60 g∙cm−3 for the AG and MNG electrodes, respectively. Both AG, at a density of 1.55 g∙cm−3, and MNG, at a density of 1.60 g∙cm−3, showed quite similar performance with regard to cycling stability and coulombic efficiency during cycling at 30 and 45 °C, while the MNG electrodes at a density of 1.60 g∙cm−3 and 1.7 g∙cm−3 showed better rate performance than the AG electrodes at a density of 1.55 g∙cm−3. The superior rate capability of MNG electrodes can be explained by the following effects: first, their spherical morphology and higher electrode density led to enhanced electrical conductivity. Second, for the MNG sample, favorable electrode tortuosity was retained and thus Li+ transport in the electrode pore was not significantly affected, even at high electrode densities of 1.60 g∙cm−3 and 1.7 g∙cm−3. MNG electrodes also exhibited a similar electrochemical swelling behavior to the AG electrodes.

Pre-lithiation of onion-like carbon/MoS2nano-urchin anodes for high-performance rechargeable lithium ion batteries

Nanoscale ◽  
2014 ◽  
Vol 6 (15) ◽  
pp. 8884-8890 ◽  
Author(s):  
Ye Wang ◽  
Guozhong Xing ◽  
Zhao Jun Han ◽  
Yumeng Shi ◽  
Jen It Wong ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Hybrid Structure ◽  
Initial Coulombic Efficiency

Pre-lithiation of a MoS2/OLC nano-urchin hybrid structure shows great potential in developing good performance lithium ion batteries with ultra-high initial coulombic efficiency.

An Electrochemically Anodic Study of Anatase TiO2 Tuned through Carbon-Coating for High-performance Lithium-ion Battery

2015 ◽  
Vol 164 ◽  
pp. 330-336 ◽  
Author(s):  
Jun Chen ◽  
Hongshuai Hou ◽  
Yingchang Yang ◽  
Weixin Song ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
High Performance ◽  
Carbon Coating ◽  
Lithium Ion ◽  
Anatase Tio2

Three-dimensional bi-conductive Si-based anode for high-performance lithium ion battery

2021 ◽  
Author(s):  
Yangqiang Jiang ◽  
Feng Xiang ◽  
Shijun Fan ◽  
Zixu Sun
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Lithium Ion Battery ◽  
Reduced Graphene Oxide ◽  
Anode Material ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Reduced Graphene

A high-coulombic-efficiency Si-based anode material with Si-Cu-C dispersed in a reduced graphene oxide (RGO) and carbon nanotube (CNT) framework (namely SCC/RGO/CNT) is designed and synthesized. The composite could show a...

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