Self-shutdown function induced by sandwich-like gel polymer electrolytes for high safety lithium metal batteries

doi:10.1039/d1ra02641k

	Self-shutdown function induced by sandwich-like gel polymer electrolytes for high safety lithium metal batteries
	Xie, Binxuan 1; Chen, Shimou 3,4; Chen, Yong 2; Liu, Lili 1
刊名	RSC ADVANCES
	2021-04-23
卷号	11 期号:23 页码:14036-14046
DOI	10.1039/d1ra02641k
英文摘要	Lithium-ion batteries using either liquid electrolytes or solid electrolytes have been extensively studied in recent years, but both of these encounter safety risks such as flammability of liquid electrolytes and uncontrolled dendrite growth. In this study, a sandwich gel polymer electrolyte (SGPE) with a thermal shutdown function was developed to resolve the safety issues. By adjustment of surface pore size of the SGPE, lithium dendrite growth is suppressed. Due to the sandwich structure design, the SGPE can effectively respond to an overheating environment, regulate lithium ion transport and inhibit the penetration of lithium dendrite, demonstrating a remarkably high safety of the batteries, especially at high temperature or under thermal runaway circumstances. In addition, the LiFePO4/SGPE/Li battery exhibits a high reversible capacity of 135 mA h g(-1) at 1C and maintains high capacity retention (>95%) after 200 charge-discharge cycles. This study shows a great advantage to handle thermal abuse and a stable lithium anode, suggesting a promising approach to the high safety lithium metal batteries.
资助项目	National Natural Science Foundation of China[51922099] ; National Natural Science Foundation of China[21890760] ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences[CXYJJ20-MS-05] ; Natural Science Foundation of Hebei Province for Distinguished Young Scholars[E2020103052] ; School Level Cultivation Fund of Beijing Technology and Business University for Distinguished and Excellent Young Scholars
WOS关键词	ION BATTERY ; PERFORMANCE ; LIQUID ; STRATEGIES ; SEPARATOR ; MEMBRANES ; PROGRESS ; ANODES
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000641127700040
资助机构	National Natural Science Foundation of China ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences ; Natural Science Foundation of Hebei Province for Distinguished Young Scholars ; School Level Cultivation Fund of Beijing Technology and Business University for Distinguished and Excellent Young Scholars
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48592]
专题	中国科学院过程工程研究所
通讯作者	Chen, Shimou; Liu, Lili
作者单位	1.Beijing Technol & Business Univ, Coll Chem & Mat Engn, Beijing 100048, Peoples R China 2.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China 3.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xie, Binxuan,Chen, Shimou,Chen, Yong,et al. Self-shutdown function induced by sandwich-like gel polymer electrolytes for high safety lithium metal batteries[J]. RSC ADVANCES,2021,11(23):14036-14046.
APA	Xie, Binxuan,Chen, Shimou,Chen, Yong,&Liu, Lili.(2021).Self-shutdown function induced by sandwich-like gel polymer electrolytes for high safety lithium metal batteries.RSC ADVANCES,11(23),14036-14046.
MLA	Xie, Binxuan,et al."Self-shutdown function induced by sandwich-like gel polymer electrolytes for high safety lithium metal batteries".RSC ADVANCES 11.23(2021):14036-14046.