Saravanan, K. and Suganya, V. and Kalaiselvi, N. (2016) Newer polyanionic bio-composite anode for sodium ion batteries. Journal of Power Sources, 340. pp. 401-410. ISSN 0378-7753

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NASICON frame work Na3V2(PO4)3 (NVP), wrapped by nitrogen and sulfur doped bio-carbon matrix derived from human hair (HHC) has been investigated for its anode behavior in SIBs. Basically, NVP is bestowed with a crystal structure of 3D open framework and a moderate theoretical capacity of 118 mAh g�1, which are the twin advantages and motivation behind the selection of this material. Prepared through a simple, scalable and facile method, the key problems associated with pristine NVP electrode material, such as inferior conductivity and severe volume change have been mitigated to a great extent through the formation of a composite containing HHC. Herein, HHC is a cheap and eco-friendly composite additive, obtained from a universal bio-waste, viz., human hair and hence NVP/HHC qualifies itself as a green composite. Interestingly, NVP/HHC-10 (in-situ) and NVP/HHC-20 (ex-situ) anodes show excellent electrochemical performance in terms of cycling stability up to 500 cycles and rate capability @ 2 A g�1, which are superior than similar category NVP anodes reported in the literature. Further, post cycling structure and morphology of NVP/HHC composite anodes evidence the appreciable stability bestowed with the select composition, which is found to get maintained upon extended cycles and even after rate capability test.

Item Type: Article
Uncontrolled Keywords: Na3V2(PO4)3;Human hair derived carbon Anode;Sodium-ion batteries
Subjects: Electrochemical Power Sources
Depositing User: Dr. N Meyyappan
Date Deposited: 07 May 2019 08:47
Last Modified: 07 May 2019 09:04

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