期刊
SOLID STATE IONICS
卷 285, 期 -, 页码 118-121出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2015.06.007
关键词
Thin-film lithium battery; Well-defined interface; Interface resistance; LiCoO2; Vacuum process; Pulsed-laser deposition
资金
- Grants-in-Aid for Scientific Research [25820335, 26108702] Funding Source: KAKEN
An all-in-vacuum (in-vacuo) fabrication and evaluation system for thin-film all-solid-state lithium batteries was designed and constructed. To prepare clean solid electrolyte/electrode interfaces, ultra-high-vacuum (UHV) chambers for the deposition of cathode, electrolyte, and anode thin films were directly connected to each other. Thus, throughout the fabrication and evaluation, the samples were maintained under UHV conditions, not exposed to air. The thin-film lithium battery, with a clean and well-defined solid electrolyte/electrode interface, exhibited very good electrochemical properties even without post-deposition annealing. This performance is attributed to the clean solid electrolyte/electrode interface prepared in the vacuum. (C) 2015 Elsevier B.V. All rights reserved.
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