期刊
MOLECULES
卷 26, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/molecules26226950
关键词
carbon nanowall; carbon nanotube; PECVD; lithium-ion battery; cyclic voltammetry; FE-SEM
资金
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea [20204030200080]
- Korea Electric Power Corporation [R17XA05-01]
Carbon nanowall (CNW) and carbon nanotube (CNT) were prepared as anode materials for lithium-ion batteries using different chemical methods on copper foil. Through Raman analysis and electrochemical testing, it was found that the composite material with CNW and CNT exhibited superior performance.
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.
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