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Assessing the potential of ion beam analytical techniques for depth profiling Li in thin film Li ion batteries
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- Mathayan, Vairavel (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Morita, Kenji (author)
- Nagoya Ind Sci Res Inst, Dept Res, Chikusa Ku, 2F Noah Yotsuya Bldg,1-13, Nagoya, Aichi 4640819, Japan.
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- Tsuchiya, Bun (author)
- Meijo Univ, Fac Sci & Technol, Tempaku Ku, 1-501,Shiogamaguchi, Nagoya, Aichi 4688502, Japan.
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- American Institute of Physics (AIP), 2021
- 2021
- English.
- In: Journal of Applied Physics. - : American Institute of Physics (AIP). - 0021-8979 .- 1089-7550. ; 130:12
- Journal article (peer-reviewed)
Abstract
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- Depth resolution and probing depth for Li in lithium thin film batteries achievable using different ion beam analytical techniques were investigated. Experiments using protons for nuclear reaction analysis, He ions for time-of-flight (TOF) energy elastic recoil detection analysis (ERDA) in transmission geometry, as well as He and Li ions for coincidence ERDA in transmission geometry are performed. Experimental results are compared in terms of the obtained Li concentration in the separator layer. In coincidence ERDA experiments, significant loss of Li-Li and He-Li coincidence counts was observed due to multiple scattering of recoiled/scattered particles in the battery sample. The ideal achievable Li depth resolution was calculated for the ion beam techniques. A depth resolution of 750, 1030, 310, and 510 x 10(15) atoms/cm(2) could be achieved in the Nb2O5 cathode by nuclear reaction analysis (NRA) using 2 MeV H, TOF-ERDA using 8 MeV He, and coincidence ERDA using 8 MeV He and 8 MeV Li ions, respectively, upon optimization of the experimental setup. While a depth resolution of 120 x 10(15) ions/cm(2) could be achieved for Li by conventional TOF-ERDA using an solid-state detector energy detector and light primary ions such as O under gracing incidence, TOF-ERDA experiments are found to produce significantly higher beam damage in batteries than other techniques. The beam damage in NRA and coincidence ERDA as performed in this study is estimated to be of the order of 10(-4) dpa. (C)& nbsp;2021 Author(s).& nbsp; All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license(http://creativecommons.org/licenses/by/4.0/).
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
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- Morita, Kenji
- Tsuchiya, Bun
- Ye, Rongbin
- Baba, Mamoru
- Moro, Marcos V.
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