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Suppressed ionic contamination of LiNi0.5Mn1.5O4 with a Pt/ITO/stainless steel multilayer current collector
- Authors
- Kim, Jong Heon; Park, Jozeph; Cheong, Jun Young; Song, Aeran; Chung, Kwun-Bum; Park, Yun Chang; Kim, Il-Doo; Kim, Yong Joo; Park, Kyusung; Kim, Hyun-Suk
- Issue Date
- Nov-2018
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Lithium ion battery; LiNi0.5Mn1.5O4; Thin film; Sputtering; Stainless steel; In-Sn-O; Interlayer
- Citation
- CERAMICS INTERNATIONAL, v.44, no.16, pp 20093 - 20104
- Pages
- 12
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 44
- Number
- 16
- Start Page
- 20093
- End Page
- 20104
- ISSN
- 0272-8842
1873-3956
- Abstract
- LiNi0.5Mn1.5O4 (LNMO) cathode thin films were prepared on Pt-coated stainless steel (SS) substrates by radio frequency magnetron sputtering. The layers were post-annealed at 500, 600 and 700 degrees C to study the impact of thermal treatment on the crystallization of the cathode material. As the annealing temperature increases, interdiffusion occurs between the substrate and the LNMO film, which degrades the electrochemical properties of the cathode film. In order to mitigate this problem, an In-Sn-O (ITO) interlayer was introduced between Pt and the SS substrate. The ITO film is electrochemically stable and acts as an effective diffusion barrier between the substrate and the LNMO layer, which results in improved electrochemical properties of the LNMO film for a lithium ion battery.
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Related Researcher
- Chung, Kwun Bum
- College of Natural Science (Department of Physics)