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Sustainable one step process of making carbon-free TiO2 anode and sodium-ion battery electrochemistry

Abstract

Electrodes with carbon-free architecture impart a sustainable solution by eliminating side reactions. Such designs are required for anode systems especially for sodium-ion batteries where the capacity contribution from carbon is noticed additionally. Herein, carbon-free TiO2 is prepared in the monolithic dendritic form via facile single-step aerosol vapour deposition technique, grown onto stainless steel current collector. The single crystalline nature of that anatase dendrites provides detailed crystallographic introspection, explicitly. Herein, we have realised an escalation of rutile phase with the existing anatase, upon cycling which is depicted as Moiré pattern while evaluating through TEM study. As the anode is carbon and binder-free, the overall material is electrochemically active, hence improves the volumetric energy-density, appreciably. Here, we perceive a long cycle life of 1000 duration from the additive-free anatase dendrite with an adequate capacity retention of 85.1%. Therefore, we believe, our single-step fabrication process to procure additive-free monolithic electrode is the forthcoming paramount technique to produce sodium-ion battery in mass.

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Publication details

The article was received on 22 Feb 2018, accepted on 11 May 2018 and first published on 14 May 2018


Article type: Paper
DOI: 10.1039/C8SE00082D
Citation: Sustainable Energy Fuels, 2018, Accepted Manuscript
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    Sustainable one step process of making carbon-free TiO2 anode and sodium-ion battery electrochemistry

    T. S. Chadha, P. K. Dutta, R. Raliya, S. Mitra and P. Biswas, Sustainable Energy Fuels, 2018, Accepted Manuscript , DOI: 10.1039/C8SE00082D

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