TY - JOUR
T1 - Electrical and electrochemical properties of carbon nanotube-based free standing LTO electrodes for current collector-free Li-ion batteries
AU - Chaturvedi, Prerna
AU - Kanagaraj, Amarsingh Bhabu
AU - Al Nahyan, Maryam Sultan
AU - Al Shibli, H.
AU - Ashoor, Amal Abdulla
AU - Fadaq, H.
AU - Al Dahmani, Sultan
AU - Choi, Daniel S.
N1 - Funding Information:
This project is part of the implementation plan for the United Arab Emirates Space Agency's ST&I Roadmap and it falls under Level 1 ST&I area of “space power and energy storage” and level 2 ″energy storage”. This work is funded by the United Arab Emirates Space Agency , Space Missions' Science and Technology Directorate , Reference M04-2016-001 .
Publisher Copyright:
© 2019 Korean Physical Society
PY - 2019/11
Y1 - 2019/11
N2 - The spinel lithium titanate oxide (Li4Ti5O12, LTO) has been extensively studied as one of the most promising alternatives to carbon materials in energy conversion and storage devices, due to its high structural and thermal stability, rate capability, and excellent cycling stability. In this study, Li4Ti5O12/multi-walled carbon nanotubes (LTO-MWCNTs) free-standing and flexible composite electrodes/buckypapers were prepared via tape casting technique and well compared with commercially available LTO. The structural, morphological, electrical and electrochemical properties of LTO-MWCNTs buckypaper as well as LTO were studied. The electrical conductivity of LTO-based buckypaper was found to be very high i. e, 4.4 × 102 Scm−1 at room temperature. Further, the buckypaper prepared by synthesized LTO showed higher specific capacity (166 mAhg−1) compared to commercially available LTO (137 mAhg−1) at 0.2 C rate. The enhanced electrochemical performance of as-synthesized LTO-based buckypaper is mainly attributed to the higher electronic conductivity and homogeneous distribution of particles with its small size which facilitates large amount of active sites for lithium insertion and also short diffusion paths.
AB - The spinel lithium titanate oxide (Li4Ti5O12, LTO) has been extensively studied as one of the most promising alternatives to carbon materials in energy conversion and storage devices, due to its high structural and thermal stability, rate capability, and excellent cycling stability. In this study, Li4Ti5O12/multi-walled carbon nanotubes (LTO-MWCNTs) free-standing and flexible composite electrodes/buckypapers were prepared via tape casting technique and well compared with commercially available LTO. The structural, morphological, electrical and electrochemical properties of LTO-MWCNTs buckypaper as well as LTO were studied. The electrical conductivity of LTO-based buckypaper was found to be very high i. e, 4.4 × 102 Scm−1 at room temperature. Further, the buckypaper prepared by synthesized LTO showed higher specific capacity (166 mAhg−1) compared to commercially available LTO (137 mAhg−1) at 0.2 C rate. The enhanced electrochemical performance of as-synthesized LTO-based buckypaper is mainly attributed to the higher electronic conductivity and homogeneous distribution of particles with its small size which facilitates large amount of active sites for lithium insertion and also short diffusion paths.
KW - Carbon nanotubes
KW - Free standing electrode
KW - LiTiO
KW - Tape casting
UR - http://www.scopus.com/inward/record.url?scp=85069822766&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2019.07.009
DO - 10.1016/j.cap.2019.07.009
M3 - Article
AN - SCOPUS:85069822766
SN - 1567-1739
VL - 19
SP - 1150
EP - 1155
JO - Current Applied Physics
JF - Current Applied Physics
IS - 11
ER -