Mani, V. and Suresh babu, G.N. and Kalaiselvi, N. (2018) Sn-Fe5(PO4)4(OH)3.2H2O/graphene: A new electrode for superior rate applications in Li/Na ion batteries. Journal of Power Sources, 395. pp. 31-40. ISSN 0378-7753

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A novel Sn-Fe5(PO4)4(OH)3.2H2O, otherwise known as (Sn-FeHP) is prepared by hydrothermal method and subsequently, Sn-FeHP/G composite containing graphene is obtained by adopting a simple mechanothermal approach. Not requiring the addition of surfactant or template, the currently adopted hydrothermal strategy produces flower like morphology with a polyhedral rod assembly. When it is explored as Li-ion battery anode, a steady state capacity of 1000 mA h g−1 is demonstrated by Sn-FeHP/G under the influence of 100 mA g−1 current density with an excellent Coulombic efficiency of 99% up to 100 cycles. The title anode demonstrates its suitability for high capacity and high rate applications by exhibiting appreciable capacity values of 520, 450, and 350 mA h g−1 , under the influence of 2, 3 and 5 A g−1 respectively. Further, Sn-FeHP/G composite anode demonstrates the suitability for Na-ion batteries by exhibiting 195 and 160 mA h g−1 of capacity under the influence of 50 and 100 mA g−1 up to 1000 and 100 cycles respectively. The study recommends Sn-FeHP/G composite for its exploitation as an alternative anode for high-performance lithium-ion and sodium-ion batteries

Item Type: Article
Uncontrolled Keywords: Sn-FeHP/GAlloy anode; Lithium battery;Sodium battery;Rate capability
Subjects: Electrochemical Power Sources
Depositing User: Dr. N Meyyappan
Date Deposited: 07 May 2019 10:16
Last Modified: 07 May 2019 10:16

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