Characterization of protective-layer-coated LiMn2O4 cathode thin films

被引：26
|
作者：
Moon, HS
Lee, SW
Lee, YK
Park, JW
机构：
[1] Hanyang Univ, Div Engn & Mat Sci, Seongdong Gu, Seoul 133791, South Korea
[2] Uiduk Univ, Dept Semicond Engn, Kyongju 780713, Kyungsangbuk, South Korea
[3] Res Ctr Energy Convers & Storage, Kwanak Gu, Seoul 151742, South Korea
来源：
JOURNAL OF POWER SOURCES | 2003年 / 119卷
关键词：
LiMn2O4; DLC; protective layer; rf magnetron sputtering; lithium microbattery;
D O I：
10.1016/S0378-7753(03)00218-0
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：
We introduced a post-annealing process for the preparation of spinel-phase LiMn2O4. The annealed films had proper crystallinity and surface roughness. In order to reduce the interface reaction during operation, we introduced a diamond-like carbon (DLC) film. The DLC films were deposited on LiMn2O4 films by using electron cyclotron resonance chemical vapor deposition (ECRCVD). A DLC-coated LiMn2O4 film was more stable during the charging-discharging reaction and showed higher discharge capacity over a wide voltage window than the uncoated LiMn2O4 film. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：713 / 716
页数：4
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