Tape-Cast Water-Stable NASICON-type High Lithium Ion Conducting Solid Electrolyte Films for Aqueous Lithium-Air Batteries

被引:40
|
作者
Zhang, Peng [1 ]
Wang, Hui [1 ]
Lee, Yong-Gun [2 ]
Matsui, Masaki [1 ,3 ]
Takeda, Yasuo [1 ]
Yamamoto, Osamu [1 ]
Imanishi, Nobuyuki [1 ]
机构
[1] Mie Univ, Grad Sch Engn, Tsu, Mie 5148507, Japan
[2] Samsung Elect Co, SAIT, Suwon 443742, Gyeonggi Do, South Korea
[3] PRESTO, Kawaguchi, Saitama 3320012, Japan
关键词
Compendex;
D O I
10.1149/2.0711507jes
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A Li1.4Al0.4Ge0.2Ti1.4 (PO4)(3) (LAGTP) film was prepared by a tape-casting method using a fine LAGTP powder prepared by the sol-gel method. A LAGTP composite film formed with approximately 2 wt% epoxy resin was water-impermeable and had high mechanical strength. The highest lithium ion conductivity of 5.26 x 10(-4) S cm(-1) at 25 degrees C was obtained for the LAGTP-epoxy resin composite film. The LAGTP-epoxy resin composite film was stable in an aqueous solution with a high content of lithium ions. The three-point bending strength of the 75 mu m thick LAGTP-epoxy resin composite film was 125 N mm(-2). The water-impermeable composite film with excellent mechanical properties is an attractive candidate for the water-stable lithium electrode in rechargeable aqueous lithium-air batteries. (C) 2015 The Electrochemical Society. All rights reserved.
引用
收藏
页码:A1265 / A1271
页数:7
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