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Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries

In this study, we demonstrate the effect of adding one-dimensional (1D) vapor-grown carbon fiber (VGCF) as a carbon additive to increase the electronic conductivity of LiFePO4 cathode. Because, the 1D VGCF structure can provide rapid and long-pathways for electron transfer and regulate a better phas...

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Main Authors: Shih, Jengywan, Lin, Guanyin, James Li, Ying Jeng, Hung, Tai-Feng, Jose, Rajan, Karuppiah, Chelladurai, Yang, Chun–Chen
Format: Article
Language:English
English
Published: Elsevier Ltd 2022
Subjects:
HD28 Management. Industrial Management
Q Science (General)
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/42685/1/Operando%20investigation%20on%20the%20fast%20two-phase%20transition%20kinetics.pdf
http://umpir.ump.edu.my/id/eprint/42685/2/Operando%20investigation%20on%20the%20fast%20two-phase%20transition%20kinetics%20of%20LiFePO4_C%20composite%20cathodes%20with%20carbon%20additives%20for%20lithium-ion%20batteries_ABS.pdf
http://umpir.ump.edu.my/id/eprint/42685/
https://doi.org/10.1016/j.electacta.2022.140356
https://doi.org/10.1016/j.electacta.2022.140356
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spelling my.ump.umpir.426852025-01-07T03:51:39Z http://umpir.ump.edu.my/id/eprint/42685/ Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries Shih, Jengywan Lin, Guanyin James Li, Ying Jeng Hung, Tai-Feng Jose, Rajan Karuppiah, Chelladurai Yang, Chun–Chen HD28 Management. Industrial Management Q Science (General) T Technology (General) In this study, we demonstrate the effect of adding one-dimensional (1D) vapor-grown carbon fiber (VGCF) as a carbon additive to increase the electronic conductivity of LiFePO4 cathode. Because, the 1D VGCF structure can provide rapid and long-pathways for electron transfer and regulate a better phase transition effect on LiFePO4 cathode compared to the other-dimensional carbon additives. Here, the olivine-type LiFePO4/C composite (LFP/C) cathode is basically derived from a sol-gel method, followed by a spray-dry technique to obtain a homogenous spherical morphology. The carbon additives of 0D super P, 1D VGCF and 2D or 3D porous reduced graphene oxide (PGO) nanosheets containing cathodes-based, such as bare LFP/C, LFP/C/VGCF and LFP/C/PGO, half-cells were fabricated and tested at a cut-off voltage of 2.0 – 3.8 V (vs. Li/Li+). Interestingly, the LFP/C/VGCF showed better performance than the bare LFP/C and LFP/C/PGO. Especially at high-rate cycle-life, the LFP/C/VGCF cathode attained capacity retention of 100% for 100 cycles at 1C/1C and 98.83% for 100 cycles at 1C/10C. It is due to the higher electronic conductivity (ca. 2.36 × 10−4 S cm−1) and Li+ ion diffusion coefficient (ca. 2.56 × 10−13 cm2 s−1) of LFP/C/VGCF cathode than the other electrodes. It can also provide better reversibility in a phase transition of LiFePO4/FePO4 phases during the charge/discharge cycle, further confirmed by in-situ XRD and micro-Raman techniques. The results indicated that the LFP/C/VGCF cathode displayed much faster kinetics behavior than bare LFP/C cathode. Elsevier Ltd 2022-07-01 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42685/1/Operando%20investigation%20on%20the%20fast%20two-phase%20transition%20kinetics.pdf pdf en http://umpir.ump.edu.my/id/eprint/42685/2/Operando%20investigation%20on%20the%20fast%20two-phase%20transition%20kinetics%20of%20LiFePO4_C%20composite%20cathodes%20with%20carbon%20additives%20for%20lithium-ion%20batteries_ABS.pdf Shih, Jengywan and Lin, Guanyin and James Li, Ying Jeng and Hung, Tai-Feng and Jose, Rajan and Karuppiah, Chelladurai and Yang, Chun–Chen (2022) Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries. Electrochimica Acta, 419 (140356). pp. 1-14. ISSN 0013-4686. (Published) https://doi.org/10.1016/j.electacta.2022.140356 https://doi.org/10.1016/j.electacta.2022.140356
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic HD28 Management. Industrial Management
Q Science (General)
T Technology (General)
spellingShingle HD28 Management. Industrial Management
Q Science (General)
T Technology (General)
Shih, Jengywan
Lin, Guanyin
James Li, Ying Jeng
Hung, Tai-Feng
Jose, Rajan
Karuppiah, Chelladurai
Yang, Chun–Chen
Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries
description In this study, we demonstrate the effect of adding one-dimensional (1D) vapor-grown carbon fiber (VGCF) as a carbon additive to increase the electronic conductivity of LiFePO4 cathode. Because, the 1D VGCF structure can provide rapid and long-pathways for electron transfer and regulate a better phase transition effect on LiFePO4 cathode compared to the other-dimensional carbon additives. Here, the olivine-type LiFePO4/C composite (LFP/C) cathode is basically derived from a sol-gel method, followed by a spray-dry technique to obtain a homogenous spherical morphology. The carbon additives of 0D super P, 1D VGCF and 2D or 3D porous reduced graphene oxide (PGO) nanosheets containing cathodes-based, such as bare LFP/C, LFP/C/VGCF and LFP/C/PGO, half-cells were fabricated and tested at a cut-off voltage of 2.0 – 3.8 V (vs. Li/Li+). Interestingly, the LFP/C/VGCF showed better performance than the bare LFP/C and LFP/C/PGO. Especially at high-rate cycle-life, the LFP/C/VGCF cathode attained capacity retention of 100% for 100 cycles at 1C/1C and 98.83% for 100 cycles at 1C/10C. It is due to the higher electronic conductivity (ca. 2.36 × 10−4 S cm−1) and Li+ ion diffusion coefficient (ca. 2.56 × 10−13 cm2 s−1) of LFP/C/VGCF cathode than the other electrodes. It can also provide better reversibility in a phase transition of LiFePO4/FePO4 phases during the charge/discharge cycle, further confirmed by in-situ XRD and micro-Raman techniques. The results indicated that the LFP/C/VGCF cathode displayed much faster kinetics behavior than bare LFP/C cathode.
format Article
author Shih, Jengywan
Lin, Guanyin
James Li, Ying Jeng
Hung, Tai-Feng
Jose, Rajan
Karuppiah, Chelladurai
Yang, Chun–Chen
author_facet Shih, Jengywan
Lin, Guanyin
James Li, Ying Jeng
Hung, Tai-Feng
Jose, Rajan
Karuppiah, Chelladurai
Yang, Chun–Chen
author_sort Shih, Jengywan
title Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries
title_short Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries
title_full Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries
title_fullStr Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries
title_full_unstemmed Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries
title_sort operando investigation on the fast two-phase transition kinetics of lifepo4/c composite cathodes with carbon additives for lithium-ion batteries
publisher Elsevier Ltd
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/42685/1/Operando%20investigation%20on%20the%20fast%20two-phase%20transition%20kinetics.pdf
http://umpir.ump.edu.my/id/eprint/42685/2/Operando%20investigation%20on%20the%20fast%20two-phase%20transition%20kinetics%20of%20LiFePO4_C%20composite%20cathodes%20with%20carbon%20additives%20for%20lithium-ion%20batteries_ABS.pdf
http://umpir.ump.edu.my/id/eprint/42685/
https://doi.org/10.1016/j.electacta.2022.140356
https://doi.org/10.1016/j.electacta.2022.140356
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score 13.235362

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