Three-dimensional hemisphere-structured LiSn0.0125Mn1.975O4 thin-film cathodes

Title
Three-dimensional hemisphere-structured LiSn0.0125Mn1.975O4 thin-film cathodes
Authors
임해나공우연윤석진남산장호원성영은하종윤Albert V. Davydov최지원
Keywords
Three-dimensional thin film lithium battery; Sn-LiMn2O4
Issue Date
2014-06
Publisher
Electrochemistry communications
Citation
VOL 43, 36-39
Abstract
Three-dimensional (3D) high surface area LiSn0.0125Mn1.975O4 thin film cathodes have been fabricated in order to increase a charge capacity in the Li-ion battery. Metal oxide films were deposited by RF magnetron sputtering on three types of hemisphere-structured templates fabricated via spin-coating with polystyrene (PS) beads. Compared to standard planar battery design, the capacities of the close-packed, linked, and isolated 3D films are higher by 1.4, 2.6, and 2.1 times, respectively,which correlateswith the corresponding increase of the specific surface area of the templates. The linked hemisphere cathode film shows an improved discharge capacity of 67.6 μA h μm−1 cm−2 without significant degradation of the cyclic retention.
URI
http://pubs.kist.re.kr/handle/201004/47464
ISSN
13882481
Appears in Collections:
KIST Publication > Article
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