Directly integrated all-solid-state flexible lithium batteries on polymer substrate

Title
Directly integrated all-solid-state flexible lithium batteries on polymer substrate
Authors
최지원백승협임해나유승호성영은
Keywords
Lithium thin film batteries; Flexible batteries; Excimer laser annealing; Microbatteries; LiNi0.5Mn1.5O4
Issue Date
2020-04
Publisher
Journal of power sources
Citation
VOL 455-227984
Abstract
Recently, all-solid-state lithium batteries have attracted great attention due to their safe operation without risk of explosion under high operating voltage. However, integrating all solid layers on flexible polymer substrate has been hampered by conflicts between the high crystallization temperature and the endurable temperature of the polymer substrate. In this work, we present a simple fabrication method for all-solid-state flexible lithium batteries that are directly integrated on a polymer substrate. Using excimer laser annealing technique, we are able to selectively crystalize the amorphous cathode layer grown on top of the polymer platform without any damage to the substrate. Our flexible battery is bendable up to a curvature radius of 9 mm without mechanical breakdown, and has an initial capacity of 20 μA h μm− 1 cm− 2 at a 0.2 C-rate. Our approach using laser annealing provides new opportunities for integrating all-solid-state lithium thin film batteries on a broader range of platforms.
URI
http://pubs.kist.re.kr/handle/201004/71016
ISSN
0378-7753
Appears in Collections:
KIST Publication > Article
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