Sandwich-Structured Sn4P3@MXene Hybrid Anodes with High Initial Coulombic Efficiency for High-Rate Lithium-Ion Batteries

Author(s):  
Wufeng Fan ◽  
Junpeng Xue ◽  
Deping Wang ◽  
Yuxi Chen ◽  
Hongbo Liu ◽  
...  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jihyun Jang ◽  
Tae Hun Kim ◽  
Ji Heon Ryu

AbstractAs the application of lithium-ion batteries in electric vehicles increases, the demand for improved charging characteristics of batteries is also increasing. Lithium titanium oxide (Li4Ti5O12, LTO) is a negative electrode material with high rate characteristics, but further improvement in rate characteristics is needed for achieving the quick-charging performance required by electric vehicle markets. In this study, the surface of LTO was coated with a titanium nitride (TiN) layer using urea and an autogenic reactor, and electrochemical performance was improved (initial Coulombic efficiency and the rate capability were improved from 95.6 to 4.4% for pristine LTO to 98.5% and 53.3% for urea-assisted TiN-coated LTO, respectively. We developed a process for commercial production of surface coatings using eco-friendly material to further enhance the charging performance of LTO owing to high electronic conductivity of TiN.


Small ◽  
2021 ◽  
pp. 2102894
Author(s):  
Lin Sun ◽  
Yanxiu Liu ◽  
Jun Wu ◽  
Rong Shao ◽  
Ruiyu Jiang ◽  
...  

2019 ◽  
Vol 3 (9) ◽  
pp. 2361-2365 ◽  
Author(s):  
Xiaoyong Dou ◽  
Ming Chen ◽  
Jiantao Zai ◽  
Zhen De ◽  
Boxu Dong ◽  
...  

Silicon (Si) has been regarded as a promising next-generation anode material to replace carbon-based materials for lithium ion batteries (LIBs).


2018 ◽  
Vol 54 (86) ◽  
pp. 12214-12217 ◽  
Author(s):  
Xiangyang Zhou ◽  
Yongpeng Ren ◽  
Juan Yang ◽  
Jing Ding ◽  
Jiaming Zhang ◽  
...  

The initial coulombic efficiency of Si anodes is effectively improved via a Cu assisted Mg reduction.


Nanoscale ◽  
2014 ◽  
Vol 6 (15) ◽  
pp. 8884-8890 ◽  
Author(s):  
Ye Wang ◽  
Guozhong Xing ◽  
Zhao Jun Han ◽  
Yumeng Shi ◽  
Jen It Wong ◽  
...  

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.


Nanoscale ◽  
2016 ◽  
Vol 8 (16) ◽  
pp. 8666-8672 ◽  
Author(s):  
Wenwu Li ◽  
Lin Gan ◽  
Kai Guo ◽  
Linbo Ke ◽  
Yaqing Wei ◽  
...  

The well-aligned binary lithium-reactive metal phosphide nanowire arrays were grafted on carbon fabrics. When served as integrated electrodes, they exhibit striking high initial coulombic efficiency, large capacity, excellent rate performance.


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