Quantitative analysis of microstructures and reaction interfaces on composite cathodes in all-solid-state batteries using a three-dimensional reconstruction technique

Title
Quantitative analysis of microstructures and reaction interfaces on composite cathodes in all-solid-state batteries using a three-dimensional reconstruction technique
Authors
이종호김형철정훈기최성민김지수전민재최성준정으뜸안준성임재민장용준상병인
Keywords
3D reconstruction; composite cathode; microstructure; two-phase boundary; all-solid-state battery
Issue Date
2018-07
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 10, NO 28-23747
Abstract
The composite cathode of an all-solid-state battery composed of various solid-state components requires a dense microstructure and a highly percolated solid-state interface different from that of a conventional liquid-electrolyte-based Li-ion battery. Indeed, the preparation of such a system is particularly challenging. In this study, quantitative analyses of composite cathodes by three-dimensional reconstruction analysis were performed beyond the existing qualitative analysis, and their microstructures and reaction interfaces were successfully analyzed. Interestingly, various quantitative values of structure properties (such as the volume ratio, connectivity, tortuosity, and pore formation) associated with material optimization and process development were predicted, and they were found to result in limited electrochemical charge/discharge performances. We also verified that the effective two-phase boundaries were significantly suppressed to ∼23% of the total volume because of component dispersion and packing issues.
URI
http://pubs.kist.re.kr/handle/201004/67833
ISSN
1944-8244
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE