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Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries

Nickel-rich (Ni > 90 %) cathodes are regarded as one of the most attractive because of their high energy density, despite their poor stability and cycle life. To improve their performance, in this study we synthesized a double concentration-gradient layered Li[Ni0.90Co0.04Mn0.03Al0.03]O2 oxide (C...

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Main Authors: Jeyakumar, Juliya, Seenivasan, Manojkumar, Wu, Yi–Shiuan, Wu, She–Huang, Chang, Jeng Kuei, Jose, Rajan, Yang, Chunchen
Format: Article
Language:English
English
Published: Academic Press Inc. 2023
Subjects:
HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/40795/1/Preparation%20of%20long-term%20cycling%20stable%20ni-rich%20concentration.pdf
http://umpir.ump.edu.my/id/eprint/40795/2/Preparation%20of%20long-term%20cycling%20stable%20ni-rich%20concentration%E2%80%93gradient%20NCMA%20cathode%20materials%20for%20li-ion%20batteries_ABS.pdf
http://umpir.ump.edu.my/id/eprint/40795/
https://doi.org/10.1016/j.jcis.2023.02.064
https://doi.org/10.1016/j.jcis.2023.02.064
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spelling my.ump.umpir.407952024-05-28T08:00:22Z http://umpir.ump.edu.my/id/eprint/40795/ Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries Jeyakumar, Juliya Seenivasan, Manojkumar Wu, Yi–Shiuan Wu, She–Huang Chang, Jeng Kuei Jose, Rajan Yang, Chunchen HD Industries. Land use. Labor Q Science (General) T Technology (General) Nickel-rich (Ni > 90 %) cathodes are regarded as one of the most attractive because of their high energy density, despite their poor stability and cycle life. To improve their performance, in this study we synthesized a double concentration-gradient layered Li[Ni0.90Co0.04Mn0.03Al0.03]O2 oxide (CG-NCMA) using a continuous co-precipitation Taylor–Couette cylindrical reactor (TCCR) with a Ni-rich-core, an Mn-rich surface, and Al on top. The concentration-gradient morphology was confirmed through cross-sectional EDX line scanning. The as-synthesized sample exhibited excellent electrochemical performance at high rates (5C/10C), as well as cyclability (91.5 % after 100 cycles and 70.3 % after 500 cycles at 1C), superior to that (83.4 % and 47.6 %) of its non-concentration-gradient counterpart (UC-NCMA). The Mn-rich surface and presence of Al helped the material stay structurally robust, even after 500 cycles, while also suppressing side reactions between the electrode and electrolyte, resulting in better overall electrochemical performance. These enhancements in performance were studied using TEM, SEM, in-situ-XRD, XPS, CV, EIS and post-mortem analyses. This synthetic method enables the highly scalable production of CG-NCMA samples with two concentration-gradient structures for practical applications in Li-ion batteries. Academic Press Inc. 2023-06 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40795/1/Preparation%20of%20long-term%20cycling%20stable%20ni-rich%20concentration.pdf pdf en http://umpir.ump.edu.my/id/eprint/40795/2/Preparation%20of%20long-term%20cycling%20stable%20ni-rich%20concentration%E2%80%93gradient%20NCMA%20cathode%20materials%20for%20li-ion%20batteries_ABS.pdf Jeyakumar, Juliya and Seenivasan, Manojkumar and Wu, Yi–Shiuan and Wu, She–Huang and Chang, Jeng Kuei and Jose, Rajan and Yang, Chunchen (2023) Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries. Journal of Colloid and Interface Science, 639. pp. 145-159. ISSN 0021-9797. (Published) https://doi.org/10.1016/j.jcis.2023.02.064 https://doi.org/10.1016/j.jcis.2023.02.064
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 HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
spellingShingle HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
Jeyakumar, Juliya
Seenivasan, Manojkumar
Wu, Yi–Shiuan
Wu, She–Huang
Chang, Jeng Kuei
Jose, Rajan
Yang, Chunchen
Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries
description Nickel-rich (Ni > 90 %) cathodes are regarded as one of the most attractive because of their high energy density, despite their poor stability and cycle life. To improve their performance, in this study we synthesized a double concentration-gradient layered Li[Ni0.90Co0.04Mn0.03Al0.03]O2 oxide (CG-NCMA) using a continuous co-precipitation Taylor–Couette cylindrical reactor (TCCR) with a Ni-rich-core, an Mn-rich surface, and Al on top. The concentration-gradient morphology was confirmed through cross-sectional EDX line scanning. The as-synthesized sample exhibited excellent electrochemical performance at high rates (5C/10C), as well as cyclability (91.5 % after 100 cycles and 70.3 % after 500 cycles at 1C), superior to that (83.4 % and 47.6 %) of its non-concentration-gradient counterpart (UC-NCMA). The Mn-rich surface and presence of Al helped the material stay structurally robust, even after 500 cycles, while also suppressing side reactions between the electrode and electrolyte, resulting in better overall electrochemical performance. These enhancements in performance were studied using TEM, SEM, in-situ-XRD, XPS, CV, EIS and post-mortem analyses. This synthetic method enables the highly scalable production of CG-NCMA samples with two concentration-gradient structures for practical applications in Li-ion batteries.
format Article
author Jeyakumar, Juliya
Seenivasan, Manojkumar
Wu, Yi–Shiuan
Wu, She–Huang
Chang, Jeng Kuei
Jose, Rajan
Yang, Chunchen
author_facet Jeyakumar, Juliya
Seenivasan, Manojkumar
Wu, Yi–Shiuan
Wu, She–Huang
Chang, Jeng Kuei
Jose, Rajan
Yang, Chunchen
author_sort Jeyakumar, Juliya
title Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries
title_short Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries
title_full Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries
title_fullStr Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries
title_full_unstemmed Preparation of long-term cycling stable ni-rich concentration–gradient NCMA cathode materials for li-ion batteries
title_sort preparation of long-term cycling stable ni-rich concentration–gradient ncma cathode materials for li-ion batteries
publisher Academic Press Inc.
publishDate 2023
url http://umpir.ump.edu.my/id/eprint/40795/1/Preparation%20of%20long-term%20cycling%20stable%20ni-rich%20concentration.pdf
http://umpir.ump.edu.my/id/eprint/40795/2/Preparation%20of%20long-term%20cycling%20stable%20ni-rich%20concentration%E2%80%93gradient%20NCMA%20cathode%20materials%20for%20li-ion%20batteries_ABS.pdf
http://umpir.ump.edu.my/id/eprint/40795/
https://doi.org/10.1016/j.jcis.2023.02.064
https://doi.org/10.1016/j.jcis.2023.02.064
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score 13.235362

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