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Direct Evidence of Lithium Ion Migration in Resistive Switching of Lithium Cobalt Oxide Nanobatteries

Nguyen, V.S. and Mai, V.H. and Auban Senzier, P. and Pasquier, C. and Wang, K. and Rozenberg, M.J. and Brun, N. and March, K. and Jomard, F. and Giapintzakis, J. and Mihailescu, C.N. and Kyriakides, E. and Nukala, P. and Maroutian, T. and Agnus, G. and Lecoeur, P. and Matzen, S. and Aubert, P. and Franger, S. and Salot, R. and Albouy, P.-A. and Alamarguy, D. and Dkhil, B. and Chrétien, P. and Schneegans, O. (2018) Direct Evidence of Lithium Ion Migration in Resistive Switching of Lithium Cobalt Oxide Nanobatteries. Small, 14 (24): 1801038. ISSN 16136810

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Abstract

Lithium cobalt oxide nanobatteries offer exciting prospects in the field of nonvolatile memories and neuromorphic circuits. However, the precise underlying resistive switching (RS) mechanism remains a matter of debate in two-terminal cells. Herein, intriguing results, obtained by secondary ion mass spectroscopy (SIMS) 3D imaging, clearly demonstrate that the RS mechanism corresponds to lithium migration toward the outside of the LixCoO2 layer. These observations are very well correlated with the observed insulator-to-metal transition of the oxide. Besides, smaller device area experimentally yields much faster switching kinetics, which is qualitatively well accounted for by a simple numerical simulation. Write/erase endurance is also highly improved with downscaling – much further than the present cycling life of usual lithium-ion batteries. Hence very attractive possibilities can be envisaged for this class of materials in nanoelectronics. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Item Type: Article
Divisions: Faculties > Faculty of Special Equipments
Identification Number: 10.1002/smll.201801038
Uncontrolled Keywords: Cobalt compounds; Ions; Lithium-ion batteries; Metal insulator transition; Miniature batteries; Oxides; Secondary ion mass spectrometry; Switching; Thin film lithium ion batteries; Thin films; Insulator-to-metal transitions; Lithium cobalt oxides; Nanobatteries; Neuromorphic circuits; Non-volatile memory; Resistive switching; Secondary ion mass spectroscopies (SIMS); Switching kinetics; Lithium compounds
Additional Information: Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9558

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