电解质
阴极
材料科学
烧结
电池(电)
化学工程
多孔性
图层(电子)
易燃液体
准固态
离子电导率
锂(药物)
电化学
阳极
电极
电导率
制作
固体氧化物燃料电池
锂离子电池
固态
纳米技术
复合材料
废物管理
物理化学
化学
功率(物理)
量子力学
物理
工程类
作者
Chao Li,Yijie Liu,Bojie Li,Fan Zhang,Zhu Cheng,Ping He,Haoshen Zhou
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2019-06-17
卷期号:30 (36): 364003-364003
被引量:16
标识
DOI:10.1088/1361-6528/ab226f
摘要
All-solid-state Li–O2 batteries are receiving intense interest because of the substitution of solid electrolytes for toxic and flammable liquid electrolytes. However, new issues are arising in the aspect of the electrolyte cathode interface. On the one hand, in a traditional sandwiched battery structure, the reaction sites of the cathode are restricted to the finite planar electrode–electrolyte interface, resulting in limited performance of all-solid-state Li–O2 batteries. On the other hand, integrating the electrolyte with the cathode to achieve good interfacial contact often requires complex sintering processes. Herein, this work reports a solid electrolyte cathode assembly (SECA) which consists of a dense Li1.5Al0.5Ge1.5P3O12 (LAGP) layer and a carbon coated porous LAGP layer fabricated by facilely one-step sintering. As a result, Li–O2 batteries adopting the SECA showed a relatively high discharge capacity of 0.48 mAh cm−2 at 5 μA cm−2. Besides, the batteries could sustain six full cycles with a restricted capacity of 0.08 mAh cm−2 at 10 μA cm−2. It was found that the high capacity can be attributed to the high surface area of porous cathode structure.
科研通智能强力驱动
Strongly Powered by AbleSci AI