Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries
The very high specific discharge capacities of Ni> 90% cathodes are often undone by their extremely poor cycle life and thermal stability. Herein, Ni-poor, and Al-rich particle with double concentration gradients is fabricated by synthesizing particles of the Ni-rich hydroxide Ni0.9Co0.1(OH)2 in...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier Ltd
2022
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/40442/1/Spray-drying%20Al%20onto%20hydroxide%20precursors%20to%20prepare.pdf http://umpir.ump.edu.my/id/eprint/40442/2/Spray-drying%20Al%20onto%20hydroxide%20precursors%20to%20prepare%20LiNi0.855Co0.095Al0.05O2%20as%20a%20highly%20stable%20cathode%20for%20lithium-ion%20batteries_ABS.pdf |
| _version_ | 1825815489289388032 |
|---|---|
| author | Seenivasan, Manojkumar Jeyakumar, Juliya Jose, Rajan Yang, Chunchen |
| author_facet | Seenivasan, Manojkumar Jeyakumar, Juliya Jose, Rajan Yang, Chunchen |
| author_sort | Seenivasan, Manojkumar |
| collection | UMP |
| description | The very high specific discharge capacities of Ni> 90% cathodes are often undone by their extremely poor cycle life and thermal stability. Herein, Ni-poor, and Al-rich particle with double concentration gradients is fabricated by synthesizing particles of the Ni-rich hydroxide Ni0.9Co0.1(OH)2 in a highly efficient Taylor flow (TF) reactor and then depositing Al onto their surfaces using three methods: spray-drying and conventional wet and dry chemical coating. The uniformity of the surface distribution of Al on the Ni-rich transition metal oxide cathode materials affected the overall structural and electrochemical stability. Among our three systems, the cathode material prepared with the spray-dried Al exhibited the best performance, with an initial discharge capacity of 196.9 mA h g–1 and capacity retention of 93% after 100 cycles at a rate of 1 C. It also demonstrated superior electrochemical performance at higher C-rates. For example, at 10 C, it delivered an initial discharge capacity of 134.4 mA h g–1, compared with 56.8 mA h g–1 for the Al-free LiNi0.9Co0.1O2. We attribute this enhanced electrochemical performance to the presence of Al and its uniform distribution (through spray-drying processing) on the outer layer of the active material, with the Ni and Co elements remaining mainly within the core. |
| first_indexed | 2024-09-25T03:48:03Z |
| format | Article |
| id | UMPir40442 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-09-25T03:48:03Z |
| publishDate | 2022 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir404422024-04-30T06:19:53Z http://umpir.ump.edu.my/id/eprint/40442/ Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries Seenivasan, Manojkumar Jeyakumar, Juliya Jose, Rajan Yang, Chunchen HD Industries. Land use. Labor Q Science (General) T Technology (General) The very high specific discharge capacities of Ni> 90% cathodes are often undone by their extremely poor cycle life and thermal stability. Herein, Ni-poor, and Al-rich particle with double concentration gradients is fabricated by synthesizing particles of the Ni-rich hydroxide Ni0.9Co0.1(OH)2 in a highly efficient Taylor flow (TF) reactor and then depositing Al onto their surfaces using three methods: spray-drying and conventional wet and dry chemical coating. The uniformity of the surface distribution of Al on the Ni-rich transition metal oxide cathode materials affected the overall structural and electrochemical stability. Among our three systems, the cathode material prepared with the spray-dried Al exhibited the best performance, with an initial discharge capacity of 196.9 mA h g–1 and capacity retention of 93% after 100 cycles at a rate of 1 C. It also demonstrated superior electrochemical performance at higher C-rates. For example, at 10 C, it delivered an initial discharge capacity of 134.4 mA h g–1, compared with 56.8 mA h g–1 for the Al-free LiNi0.9Co0.1O2. We attribute this enhanced electrochemical performance to the presence of Al and its uniform distribution (through spray-drying processing) on the outer layer of the active material, with the Ni and Co elements remaining mainly within the core. Elsevier Ltd 2022-12-10 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40442/1/Spray-drying%20Al%20onto%20hydroxide%20precursors%20to%20prepare.pdf pdf en http://umpir.ump.edu.my/id/eprint/40442/2/Spray-drying%20Al%20onto%20hydroxide%20precursors%20to%20prepare%20LiNi0.855Co0.095Al0.05O2%20as%20a%20highly%20stable%20cathode%20for%20lithium-ion%20batteries_ABS.pdf Seenivasan, Manojkumar and Jeyakumar, Juliya and Jose, Rajan and Yang, Chunchen (2022) Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries. Journal of Alloys and Compounds, 926 (166753). pp. 1-11. ISSN 0925-8388. (Published) https://doi.org/10.1016/j.jallcom.2022.166753 https://doi.org/10.1016/j.jallcom.2022.166753 |
| spellingShingle | HD Industries. Land use. Labor Q Science (General) T Technology (General) Seenivasan, Manojkumar Jeyakumar, Juliya Jose, Rajan Yang, Chunchen Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries |
| title | Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries |
| title_full | Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries |
| title_fullStr | Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries |
| title_full_unstemmed | Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries |
| title_short | Spray-drying Al onto hydroxide precursors to prepare LiNi0.855Co0.095Al0.05O2 as a highly stable cathode for lithium-ion batteries |
| title_sort | spray drying al onto hydroxide precursors to prepare lini0 855co0 095al0 05o2 as a highly stable cathode for lithium ion batteries |
| topic | HD Industries. Land use. Labor Q Science (General) T Technology (General) |
| url | http://umpir.ump.edu.my/id/eprint/40442/1/Spray-drying%20Al%20onto%20hydroxide%20precursors%20to%20prepare.pdf http://umpir.ump.edu.my/id/eprint/40442/2/Spray-drying%20Al%20onto%20hydroxide%20precursors%20to%20prepare%20LiNi0.855Co0.095Al0.05O2%20as%20a%20highly%20stable%20cathode%20for%20lithium-ion%20batteries_ABS.pdf |
| work_keys_str_mv | AT seenivasanmanojkumar spraydryingalontohydroxideprecursorstopreparelini0855co0095al005o2asahighlystablecathodeforlithiumionbatteries AT jeyakumarjuliya spraydryingalontohydroxideprecursorstopreparelini0855co0095al005o2asahighlystablecathodeforlithiumionbatteries AT joserajan spraydryingalontohydroxideprecursorstopreparelini0855co0095al005o2asahighlystablecathodeforlithiumionbatteries AT yangchunchen spraydryingalontohydroxideprecursorstopreparelini0855co0095al005o2asahighlystablecathodeforlithiumionbatteries |