Three-dimensional hemisphere-structured LiSn0.0125Mn 1.975O4 thin-film cathodes

Haena Yim; Woo Yeon Kong; Seok Jin Yoon; Sahn Nahm; Ho Won Jang; Yung Eun Sung; Jong Yoon Ha; Albert V. Davydov; Ji Won Choi

doi:10.1016/j.elecom.2014.02.016

Three-dimensional hemisphere-structured LiSn_0.0125Mn _1.975O₄ thin-film cathodes

Haena Yim, Woo Yeon Kong, Seok Jin Yoon, Sahn Nahm, Ho Won Jang, Yung Eun Sung, Jong Yoon Ha, Albert V. Davydov, Ji Won Choi

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Three-dimensional (3D) high surface area LiSn_0.0125Mn _1.975O₄ 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 correlates with 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.

Original language	English
Pages (from-to)	36-39
Number of pages	4
Journal	Electrochemistry Communications
Volume	43
DOIs	https://doi.org/10.1016/j.elecom.2014.02.016
Publication status	Published - 2014 Jun

Keywords

Three-dimensional thin film lithium battery

ASJC Scopus subject areas

Electrochemistry

Access to Document

10.1016/j.elecom.2014.02.016

Cite this

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title = "Three-dimensional hemisphere-structured LiSn0.0125Mn 1.975O4 thin-film cathodes",

abstract = "Three-dimensional (3D) high surface area LiSn0.0125Mn 1.975O4 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 correlates with 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.",

keywords = "Three-dimensional thin film lithium battery",

author = "Haena Yim and Kong, {Woo Yeon} and Yoon, {Seok Jin} and Sahn Nahm and Jang, {Ho Won} and Sung, {Yung Eun} and Ha, {Jong Yoon} and Davydov, {Albert V.} and Choi, {Ji Won}",

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journal = "Electrochemistry Communications",

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AU - Yim, Haena

AU - Kong, Woo Yeon

AU - Yoon, Seok Jin

AU - Nahm, Sahn

AU - Jang, Ho Won

AU - Sung, Yung Eun

AU - Ha, Jong Yoon

AU - Davydov, Albert V.

AU - Choi, Ji Won

PY - 2014/6

Y1 - 2014/6

N2 - Three-dimensional (3D) high surface area LiSn0.0125Mn 1.975O4 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 correlates with 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.

AB - Three-dimensional (3D) high surface area LiSn0.0125Mn 1.975O4 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 correlates with 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.

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