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Designing Novel Sulphate-based Ceramic Materials as Insertion Host Compounds for Secondary Batteries

Dwibedi, Debasmita and Barpanda, Prabeer (2015) Designing Novel Sulphate-based Ceramic Materials as Insertion Host Compounds for Secondary Batteries. In: TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY, 74 (4). pp. 191-194.

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Official URL: http://dx.doi.org/10.1080/0371750X.2015.1127183


Rechargeable batteries have propelled the wireless revolution and automobiles market over the past 25 years. Developing better batteries with improved energy density demands unveiling of new cathode ceramic materials with suitable diffusion channels and open framework structure. In this pursuit of achieving higher energy density, one approach is to realize enhanced redox voltage of insertion of ceramic compounds. This can be accomplished by incorporating highly electronegative anions in the cathode ceramics. Building on this idea, recently various sulphate- based compounds have been reported as high voltage cathode materials. The current article highlights the use of sulphate (SO4) based cathodes to realize the highest ever Fe3+/Fe2+ redox potentials in Li-ion batteries (LiFeSO4F fluorosulphate: 3.9V vs Li/Li+) and Na-ion batteries (Na2Fe2(SO4)(3) polysulphate: 3.8V vs Na/Na+). These sulphate-based cathode ceramic compounds pave way for newer avenues to design better batteries for future applications.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the INDIAN CERAMIC SOC, CENTRAL GLASS & CERAMIC RES INST, KOLKATA, 700 032, INDIA
Keywords: Energy storage; Li-ion batteries; Na-ion batteries; Cathode ceramic; High voltage; Fluorosulphates; Triplite; Polysulphates; Alluaudite
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 18 Feb 2016 06:21
Last Modified: 18 Feb 2016 06:21
URI: http://eprints.iisc.ac.in/id/eprint/53261

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