Quasi-anisotropic benefits in electrospun nickel–cobalt–manganese oxide nano-octahedron as anode for lithium-ion batteries

Ling, Jin Kiong and Karuppiah, Chelladurai and Das, Santanu and Singh, Vivek Kumar and Izan Izwan, Misnon and Mohd Hasbi, Ab. Rahim and Peng, Shengjie and Yang, Chun Chen and Rajan, Jose (2022) Quasi-anisotropic benefits in electrospun nickel–cobalt–manganese oxide nano-octahedron as anode for lithium-ion batteries. New Journal of Chemistry, 46 (20). pp. 9799-9810. ISSN 1144-0546. (Published)

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Despite having a significantly higher capacity (>1000 mA h g−1) as compared to the conventional graphite anode, the adoption of the conversion-type transition metal oxide (TMO) anodes is restricted due to their inferior cycling stability, sluggish ion transport behavior, high potential plateau vs. Li/Li+, etc. Subsequent developments through nanostructuring and chemical composition engineering have improved the electrochemical performance of TMO anodes. Herein, a quasi-anisotropic nano-octahedron quaternary metal oxide composite is designed and synthesized using pilot-scale electrospinning by manipulating the conductivity of the polymeric solution. This morphology is first reported via electrospinning, which routinely produces nanofiber morphology. The fabricated nano-octahedron exhibited slightly higher gravimetry specific capacity (∼1184 mA h g−1 at 100 mA g−1) as compared to the nanofiber counterpart (1075 mA h g−1 at 100 mA g−1), with an initial capacity loss of 37.4% and 38.7%, respectively. Owing to the isotropic volume expansion, the nano-octahedron was capable of retaining 78.9% (or 291.2 mA h g−1) capacity after 500 charge/discharge cycles at 1000 mA g−1, compared to the inferior 24.1% (or 71.1 mA h g−1) for its nanofiber counterpart. Overall, the results discussed here provide valuable information on morphology design for future high-performance TMO anodes.

Item Type: Article
Uncontrolled Keywords: Quasi-anisotropic, Rechargeable lithium-ion batteries (LIB), nickel–cobalt–manganese oxide
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Institute of Postgraduate Studies
Depositing User: Noorul Farina Arifin
Date Deposited: 22 Jul 2022 04:11
Last Modified: 22 Jul 2022 04:11
URI: http://umpir.ump.edu.my/id/eprint/34773
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