scholarly journals Surface Analysis of Composite Material for Lithium-ion Battery by means of Low Accelerating Voltage SEM-EDS

2021 ◽  
Vol 58 (10) ◽  
pp. 552-556
Author(s):  
Yusuke Akimoto ◽  
Ayaka Yonaga ◽  
Takuro Matsunaga ◽  
Hiroshi Nakamura
2015 ◽  
Vol 167 ◽  
pp. 303-308 ◽  
Author(s):  
Hong-Qiang Wang ◽  
Guan-Hua Yang ◽  
You-Guo Huang ◽  
Xiao-Hui Zhang ◽  
Zhi-Xiong Yan ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6950
Author(s):  
Seokwon Lee ◽  
Seokhun Kwon ◽  
Kangmin Kim ◽  
Hyunil Kang ◽  
Jang Myoun Ko ◽  
...  

Carbon nanowall (CNW) and carbon nanotube (CNT) were prepared as anode materials of lithium-ion batteries. To fabricate a lithium-ion battery, copper (Cu) foil was cleaned using an ultrasonic cleaner in a solvent such as trichloroethylene (TCE) and used as a substrate. CNW and CNT were synthesized on Cu foil using plasma-enhanced chemical vapor deposition (PECVD) and water dispersion, respectively. CNW and CNT were used as anode materials for the lithium-ion battery, while lithium hexafluorophosphate (LiPF6) was used as an electrolyte to fabricate another lithium-ion battery. For the structural analysis of CNW and CNT, field emission scanning electron microscope (FE-SEM) and Raman spectroscopy analysis were performed. The Raman analysis showed that the carbon nanotube in composite material can compensate for the defects of the carbon nanowall. Cyclic voltammetry (CV) was employed for the electrochemical properties of lithium-ion batteries, fabricated by CNW and CNT, respectively. The specific capacity of CNW and CNT were calculated as 62.4 mAh/g and 49.54 mAh/g. The composite material with CNW and CNT having a specific capacity measured at 64.94 mAh/g, delivered the optimal performance.


2014 ◽  
Vol 924 ◽  
pp. 69-72 ◽  
Author(s):  
Lei Qiu ◽  
Zi Qiang Shao ◽  
Ming Long Liu ◽  
Yan Hua Liu

New cellulose derivative CMC-Li was synthesized, and nanometer fiber composite material was applied to lithium-ion battery and coated with AQ by electrospinning. Under the protection of inert gas, modified AQ/ carbon nanofibers (CNF) /Li nanometer composite material was obtained by carbonization in 280OC as lithium battery anode materials for the first time. The morphologies and structure performance of materials were characterized by using IR, SEM, CV and EIS, respectively. Specific capacity was increased to226.4 mAh.g-1after modification for the first discharge at the rate of 2C. Performance of cell with CMC-Li with the high degree of substitution (DS) was superior to that with low DS. Cellulose materials were applied to lithium battery to improve battery performance by electrospinning.


2017 ◽  
Vol 700 ◽  
pp. 54-60 ◽  
Author(s):  
Meng Li ◽  
Xuezhang Xiao ◽  
Yujie Liu ◽  
Wei Zhang ◽  
Yiwen Zhang ◽  
...  

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