Constructing dual interfacial modification by synergetic electronic and ionic conductors: Toward high-performance LAGP-Based Li-S batteries

doi:10.1016/j.ensm.2019.04.044

	Constructing dual interfacial modification by synergetic electronic and ionic conductors: Toward high-performance LAGP-Based Li-S batteries
	Li, Wenwen; Wang, Qing; Jin, Jun; Li, Yanpei; Wu, Meifen; Wen, Zhaoyin
刊名	ENERGY STORAGE MATERIALS
	2019-12-30
卷号	23 页码:299
关键词	Interfacial modification Graphite layer All-solid-state LAGP electrolyte Li-S batteries
ISSN号	2405-8297
DOI	10.1016/j.ensm.2019.04.044
文献子类	Article
英文摘要	All-solid-state lithium sulfur (Li-S) batteries based on ceramic electrolytes provide great promise for solving "shuttle effect" and security issues. However, poor interfacial solid-solid contact and serious side reaction with lithium metal anode still hold back the development of inorganic solid electrolyte at current stage. In this work, an electronic conductive graphite layer and a composite polymer electrolyte (CPE) buffer layer have been introduced onto the cathode and anode separately and bring on an excellent electrochemical performance in Li1.5Al0.5Ge1.5(PO4) 3 (LAGP)-based Li-S battery. During the electrochemical process, graphite can improve the utilization of active sulfur by serving as redox reaction sites and second current collector, and the reduction of LAGP with lithium metal is greatly alleviated by the CPE layer at the same time. Thus, interface-modified all-solid-state Li-S battery based on LAGP electrolyte exhibits outstanding cycle stability (1080 mAh g(-1) after 150 cycles) and high Coulombic efficiency (almost 100%). The solid state Li-S battery with large size (4.5 cm x 4.5 cm) shows good electrochemical performance and excellent safety even under the combustion state. Consequently, constructing dual interfacial modification by synergetic electronic and ionic conductors may be an effective way to achieve high-performance all-solid-state lithium metal batteries.
WOS关键词	SOLID-ELECTROLYTE ; LONG-LIFE ; LITHIUM ; CATHODE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27466]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Li, Wenwen,Wang, Qing,Jin, Jun,et al. Constructing dual interfacial modification by synergetic electronic and ionic conductors: Toward high-performance LAGP-Based Li-S batteries[J]. ENERGY STORAGE MATERIALS,2019,23:299.
APA	Li, Wenwen,Wang, Qing,Jin, Jun,Li, Yanpei,Wu, Meifen,&Wen, Zhaoyin.(2019).Constructing dual interfacial modification by synergetic electronic and ionic conductors: Toward high-performance LAGP-Based Li-S batteries.ENERGY STORAGE MATERIALS,23,299.
MLA	Li, Wenwen,et al."Constructing dual interfacial modification by synergetic electronic and ionic conductors: Toward high-performance LAGP-Based Li-S batteries".ENERGY STORAGE MATERIALS 23(2019):299.