An in situ element permeation constructed high endurance Li-LLZO interface at high current densities

被引：185
作者：
Lu, Yang [1 ,2 ]
Huang, Xiao [1 ,2 ]
Ruan, Yadong [1 ,2 ]
Wang, Qingsong [1 ,2 ]
Kun, Rui [1 ,2 ]
Yang, Jianhua [1 ]
Wen, Zhaoyin [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2018年 / 6卷 / 39期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
SOLID-STATE ELECTROLYTE; LITHIUM METAL ANODE; BATTERY; IMPEDANCE;
D O I：
10.1039/c8ta07241h
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：
The construction of a solid/solid SEI is proposed to improve the endurance of LLZO solid electrolytes. Al will spontaneously permeate into LLZO and construct a robust Al enriched SEI by the reaction between Al4Li9 and LLZO, realizing a low interfacial impedance of <1 Omega cm(2), high endurance for 3000 h and a high critical current density of more than 0.9 and 2.3 mA cm(-2) at 25 degrees C and 60 degrees C, respectively.
引用
收藏
页码：18853 / 18858
页数：6
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