Preferentially oriented SrLi2Ti6O14 thin film anode for Li-ion micro-batteries fabricated by pulsed laser deposition

Rambabu, A and Senthilkumar, B and Dayamani, A and Krupanidhi, SB and Barpanda, P (2018) Preferentially oriented SrLi2Ti6O14 thin film anode for Li-ion micro-batteries fabricated by pulsed laser deposition. In: Electrochimica Acta, 269 . pp. 212-216.

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Abstract

To realize all-solid-state thin-film microbatteries, robust anode candidates play a key role. SrLi2Ti6O14 forms one such Ti-based anode with ideal combination of electrochemical performance and operational safety. In the current work, SrLi2Ti6O14 anode thin-films were deposited on stainless steel substrates by pulsed laser deposition technique. X-ray diffraction confirmed the crystallinity and phase-purity of these films with preferred orientation. They were found to have uniform thickness with homogeneous morphology as revealed by scanning electron and atomic force microscopy. These as-deposited thin-film anodes exhibited active electrochemical behavior, delivering a reversible capacity over 160 mAh.g−1 without any carbon or conductive additives. Involving a Ti4+/Ti3+ redox activity around 1.4 V lying in the safe operational window of organic electrolytes, the SrLi2Ti6O14 thin film forms a promising anode candidate for Li-ion micro-batteries.

Item Type:	Journal Article
Publication:	Electrochimica Acta
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to the Elsevier Ltd.
Keywords:	Anodes; Atomic force microscopy; Carbon; Deposition; Electric batteries; Electrodes; Ions; Lithium; Lithium alloys; Lithium-ion batteries; Miniature batteries; Pulsed laser deposition; Pulsed lasers; Redox reactions; Stainless steel; Strontium alloys; Thin films; Titanium alloys; X ray diffraction, As-deposited thin films; Electrochemical behaviors; Electrochemical performance; Li-ion micro-batteries; Pulsed-laser deposition technique; SrLi2Ti6O14; Stainless steel substrates; Thin film battery, Thin film lithium ion batteries
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	08 Aug 2022 06:49
Last Modified:	08 Aug 2022 06:49
URI:	https://eprints.iisc.ac.in/id/eprint/75586

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