Yellareswara Rao, K and Narasimham, S and Narayan, K and Mohan Rao, G (2020) Investigations on sputter deposited lithium nickel manganese oxide thin film cathodes for micro battery applications. In: Materials Today: Proceedings, 19 January - 1 February 2020, Chennai, S28-S34.
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Abstract
Lithium manganese oxide thin films have been deposited on nickel (Ni) and platinum (Pt) coated stainless steel substrates at room temperature using powder target by Radio Frequency (rf) reactive magnetron sputtering. The samples are exposed to heat treatment at 500 °C to form crystalline phase. Nickel and platinum thin film coatings have been carried out using direct current (DC) sputtering. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and electrochemical characterizations have been carried out. XPS spectra indicate the presence of all elements present in the powder target. A discharge capacity of 54 mAh mm-1 cm-2 and 48 mAh mm-1 cm-2 has been obtained from charge discharge studies in the potential range 2.0 to 4.4 V for the thin film samples deposited on Ni and Pt coated SS substrates correspondingly Charge discharge cycles are conducted up to 40 cycles.
| Item Type: | Conference Paper |
|---|---|
| Publication: | Materials Today: Proceedings |
| Publisher: | Elsevier Ltd |
| Additional Information: | The copyright for this article belongs to the Author(s). |
| Keywords: | Cathodes; Lithium compounds; Magnetron sputtering; Manganese oxide; Nickel coatings; Nickel oxide; Oxide films; Scanning electron microscopy; Thin film lithium ion batteries; X ray photoelectron spectroscopy, Battery applications; Exposed to; Li-ion battery cathode; Micro battery; Powder target; Radio frequency reactive magnetron sputtering; Sputtering; Stainless steel substrates; Thin films cathode; Thin-films, Thin films |
| Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 23 Jan 2023 06:33 |
| Last Modified: | 23 Jan 2023 06:33 |
| URI: | https://eprints.iisc.ac.in/id/eprint/79252 |
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