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http://dx.doi.org/10.4313/JKEM.2022.35.2.14

Development of High-Performance LNMO Based Thin-Film Battery through Amorphous V2O5 Interlayer Insertion  

Kwon, Oh Hyuk (Department of Materials Science and Engineering, Chungnam National University)
Kim, Jong Heon (Department of Materials Science and Engineering, Chungnam National University)
Park, Jun Seob (Department of Materials Science and Engineering, Chungnam National University)
Kim, Hyun-Suk (Department of Materials Science and Engineering, Chungnam National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.35, no.2, 2022 , pp. 194-198 More about this Journal
Abstract
All-solid-state thin-film battery can realize the integration of electronic circuits into small devices. However, a high voltage cathode material is required to compensate for the low energy density. Therefore, it is necessary to study all-solid-state thin-film battery based on the high voltage cathode material LNMO. Nevertheless, the electrochemical properties deteriorate due to the problem of the interface between LiNi0.5Mn1.5O4 (LNMO) and the solid electrolyte LiPON. In this study, to solve this problem, amorphous V2O5 was deposited as an interlayer between LNMO and LiPON. We confirmed the possibility of improving cycle performance of LNMO based thin-film battery. We expect that the results of this study can extend the battery lifespan of small devices using LNMO based all-solid-state thin-film battery.
Keywords
All-solid-state thin-film battery; $LiNi_{0.5}Mn_{1.5}O_4$ (LNMO); LiPON; Amorphous $V_2O_5$ ($a-V_2O_5$);
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