TY - JOUR
T1 - Carbon nanotubes functionalized with maleic anhydride chelated silver nanoparticles as conductive additives for polyanion-based lithium-ion batteries
AU - Chiang, Chih Lien
AU - Wang, Cheng Chien
AU - Chen, Chuh Yung
N1 - Funding Information:
Special thanks to Meng-Lun Lee at Bettery Energy Technology, Inc. for her technical assistance and providing experiment materials. This study was supported by the National Science Council of the Republic of China under contract no. MOST 106-3113-E-006-005 and MOST 106-2622-8-006-009.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/12
Y1 - 2018/12
N2 - Silver nanoparticles on the surface of carbon nanotubes functionalized with maleic anhydride through plasma-induced grafting process, named CNTs-MA-Ag, were synthesized. Effects of CNTs-MA-Ag as conductive additives on the performance of LiFePO4 polyanion-based lithium-ion batteries was studied. X-ray diffraction analysis, transmission electron microscopy, and UV-vis spectroscopy were used to characterize Ag nanoparticles on the surface of CNTs-MA-Ag. Morphology of LiFePO4/CNTs-MA-Ag electrode was observed via scanning electronic microscopy. Electrochemical impedance spectroscopy analysis was conducted to acquire the charge transfer resistance of composite cathode. The specific capacity, cyclic stability and rate performance of LiFePO4/CNTs-MA-Ag coin cells were evaluated through galvanostatic charge/discharge process. LiFePO4/CNTs-MA-Ag (5 wt%) coin cells have specific capacity of 148 mAhg−1 at 0.1C with a capacity retention ratio of 98.6% after 100 cycles, and rate capacity of 113.6 and 77.8 mAhg−1 at 1C and 2C, respectively. Taken together, CNTs-MA-Ag can serve as excellent conductive additives to improve performance of polyanion-based LIBs.
AB - Silver nanoparticles on the surface of carbon nanotubes functionalized with maleic anhydride through plasma-induced grafting process, named CNTs-MA-Ag, were synthesized. Effects of CNTs-MA-Ag as conductive additives on the performance of LiFePO4 polyanion-based lithium-ion batteries was studied. X-ray diffraction analysis, transmission electron microscopy, and UV-vis spectroscopy were used to characterize Ag nanoparticles on the surface of CNTs-MA-Ag. Morphology of LiFePO4/CNTs-MA-Ag electrode was observed via scanning electronic microscopy. Electrochemical impedance spectroscopy analysis was conducted to acquire the charge transfer resistance of composite cathode. The specific capacity, cyclic stability and rate performance of LiFePO4/CNTs-MA-Ag coin cells were evaluated through galvanostatic charge/discharge process. LiFePO4/CNTs-MA-Ag (5 wt%) coin cells have specific capacity of 148 mAhg−1 at 0.1C with a capacity retention ratio of 98.6% after 100 cycles, and rate capacity of 113.6 and 77.8 mAhg−1 at 1C and 2C, respectively. Taken together, CNTs-MA-Ag can serve as excellent conductive additives to improve performance of polyanion-based LIBs.
UR - http://www.scopus.com/inward/record.url?scp=85058434380&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058434380&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2018.12.013
DO - 10.1016/j.mseb.2018.12.013
M3 - Article
AN - SCOPUS:85058434380
SN - 0921-5107
VL - 238-239
SP - 42
EP - 49
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
ER -
