Journal
MATERIALS LETTERS
Volume 285, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2020.129119
Keywords
O3-type layer electrode; Solid state reaction; NaFe9/20Cr9/20Ti1/10O2; Composite materials; Energy storage and conversion
Funding
- DST-SERB, New Delhi [EMR/2016/006302]
- PURSE and FIST Programme - Department of Science and Technology (DST)
- SAP - University Grants Commission, New Delhi, Govt. of India
- Ministry of Human Resource Development RUSA-Phase 2.0 grant, Dept. of Education, Govt. of India [F-24-51/2014 U Policy]
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This article reported the successful synthesis of Titanium substituted layered O3NFCT cathode material, which exhibited high discharge capacity and capacity retention for sodium-ion batteries. The partial Titanium substitution increased the NaO2 interlayer spacing, enriching the electrochemical property of the material.
In this article, we reported that Titanium (Ti) substituted layered O3-type NaFe9/20Cr9/20Ti1/10O2 (O3NFCT) cathode material was successfully synthesized via simple solid-state reaction for sodium-ion batteries (SIBs). The synthesized cathode material was indexed to rhombohedral structure with space group R-3 m. The hexagonal shaped sample delivered a discharge capacity of 140.63 mAh g(-1) at 0.1C in the voltage range 2 to 4 V and capacity retention of 70.6% after 50th cycles. Partial Titanium substitution has increased NaO2 interlayer spacing of the prepared cathode material, which enriched the electrochemical property of the material. (c) 2020 Elsevier B.V. All rights reserved.
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