Abstract
The contemporary technological society heavily relies on devices and systems powered across various settings, from individual rooms to entire road networks.[1] The integration of energy-based devices into human life necessitates a constant and uninterrupted power supply to ensure their optimal functionality.[2] Current power harvesting systems, encompassing both renewable and non-renewable sources, encounter challenges related to storage and maintenance. Consequently, there is a pressing need to design devices capable of efficiently and securely storing energy.[3] Supercapacitors and Li-ion batteries stand out as the forefront energy storage systems, playing a crucial role in empowering portable electronic devices and electric vehicles due to their impressive energy storage and power capabilities.[4] However, despite their prominence, the commercial success of these energy storage materials is hindered by issues such as low energy density, subpar power performance, and elevated costs.[5] Hence, it is of paramount importance to develop materials that exhibit superior energy storage capabilities while utilizing more economical alternatives.[6] This seminar discuss the preparation and pseudocapacitive properties of metal doped manganese oxides (MMn2O4) and the Li-storage properties of Mn3O4-NrGO composite as anode material for Li-ion batteries.
References
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[2] J. Xie, Y. Lu, A retrospective on lithium-ion batteries, Nat. Commun. 11 (2020) 9–12. https://doi.org/10.1038/s41467-020-16259-9.
[3] M. Huang, F. Li, F. Dong, Y.X. Zhang, L.L. Zhang, MnO2-based nanostructures for high-performance supercapacitors, J. Mater. Chem. A. 3 (2015) 21380–21423. https://doi.org/10.1039/c5ta05523g.
[4] A. Manthiram, A reflection on lithium-ion battery cathode chemistry, Nat. Commun. 11 (2020) 1–9. https://doi.org/10.1038/s41467-020-15355-0.
[5] N. Nitta, F. Wu, J.T. Lee, G. Yushin, Li-ion battery materials: present and future, Mater. Today. 18 (2015) 252–264. https://doi.org/https://doi.org/10.1016/j.mattod.2014.10.040.
[6] V. Augustyn, P. Simon, B. Dunn, Pseudocapacitive oxide materials for high-rate electrochemical energy storage, Energy Environ. Sci. 7 (2014) 1597–1614. https://doi.org/10.1039/c3ee44164d.
[7] P. Nagaraja, H.Seshagiri Rao, V. Pamidi, E. Umeshbabu, G.Ranga Rao, P. Justin, Mn3O4 nano-octahedrons embedded in nitrogen-doped graphene oxide as potent anode material for lithium-ion batteries, Ionics. 29 (2023) 2587–2598. https://doi.org/10.1007/s11581-023-05035-6.
[8] P. Nagaraja, V. Pamidi, E. Umeshbabu, T. Anirudh, H. Seshagiri Rao, G. Ranga Rao, P. Justin, Surfactant-assisted hydrothermal synthesis of CoMn2O4 nanostructures for efficient supercapacitors, J. Solid State Electrochem. 27 (2023) 785–796. https://doi.org/10.1007/s10008-022-05371-z.