Investigation of interfacial resistance between LiCoO2 cathode and LiPON electrolyte in the thin film battery

被引：45
作者：
Jeong, Eunkyung
Hong, Chan
Tak, Yongsug [1 ]
Nam, Sang Cheol
Cho, Sungbaek
机构：
[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea
[2] Nuricell Inc, Seoul 131220, South Korea
[3] Agcy Def Dev, Taejon, South Korea
来源：
JOURNAL OF POWER SOURCES | 2006年 / 159卷 / 01期
关键词：
thin film battery; LiPON; conductivity; thermal treatment; Al2O3;
D O I：
10.1016/j.jpowsour.2006.04.042
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
All solid-state thin film battery was prepared with conventional sputtering technologies. Low conductivity of lithium phosphorus oxynitride (UPON) electrolyte and higher resistance at the interface of LiCoO2/LiPON was crucial for the development of thin film battery. Presence of thermally treated Al2O3 thin film at the interface of LiCoO2/LiPON decreased the interfacial resistance and increased the discharge capacity with the better cycling behaviors. Surface analysis and electrochemical impedance measurement indicate the formation of solid solution LiCo1-yAlyO2 at the interface of LiCoO2/LiPON. (c) 2006 Elsevier B.V. All rights reserved.
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页码：223 / 226
页数：4
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