Exploration of Iron-Based Mixed Polyanion Cathode Material for Thin-Film Sodium-Ion Batteries. (19th June 2018)

• Record Type: Journal Article
• Authors: Baskar, Senthilkumar; Angalakuthi, Rambabu; Murugesan, Chinnasamy; Krupanidhi, S.B.; Barpanda, Prabeer
• Is Part Of: ECS transactions. Volume 85:Number 13(2018)
• Page Start: 227
• Page End: 234
• Publication Date: 2018-06-19
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/08513.0227ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : In this work, we have explored the iron-based mixed polyanion cathode material for sodium-ion thin film batteries. Thin films of mixed polyanion compound Na4 Fe3 (PO4 )2 P2 O7 has been prepared by pulsed laser deposition (PLD). The bulk powder was synthesized by facile solution combustion synthesis and it crystallized into orthorhombic structure with Pn21 a space group as confirmed by Rietveld refinement. The observed galvanostatic charge/discharge profiles of the thin film cathodes are characterised by features similar to those measured for the bulk powder samples. Thin film Na4 Fe3 (PO4 )2 P2 O7 exhibited reversible Na + storage capacities in the range of 110-120 mAh g -1 for more than 100 cycles with various thickness of the thin film electrode.