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Li1.5Al0.5Ge1.5(PO4)(3)Ceramic Based Lithium-Sulfur Batteries with High Cycling Stability Enabled by a Dual Confinement Effect for Polysulfides
Wang, Q; Lu, Y; Jin, J; Chen, CH; Wen, ZY
2020-10-01
Source PublicationCHEMELECTROCHEM
ISSN2196-0216
Issue19Pages:4093
SubtypeArticle
AbstractAimed at tackling the shuttle effect in lithium-sulfur (Li-S) batteries, a Li1.5Al0.5Ge1.5(PO4)(3)(LAGP) ceramic is adopted to block the migration of polysulfides. However, the LAGP-based Li-S battery with liquid electrolyte wetting the interfaces still suffers from rapid capacity decay, as polysulfides tend to dissolve into liquid electrolyte and get firmly adsorbed by LAGP. In this work, a dual confinement effect for polysulfides is put forward, enabled by the LAGP ceramic and solvent-in-salt (SIS), wherein the SIS can greatly suppress the dissolution of polysulfides. Owing to the synergistic effect of SIS and LAGP, the semi-solid-state Li-S batteries show superior capacity retention and long cycling life. In particular, at a current density of 0.2 C, the Li-S battery with SIS-modified LAGP ceramic electrolyte delivers a high initial reversible capacity of 1251.7 mAh g(-1)and long cycle life of over 250 cycles with a decay rate of only 0.07 % per cycle.
DOI10.1002/celc.202001131
WOS KeywordHIGH-PERFORMANCE ; SOLID-ELECTROLYTE ; CATHODE ; METAL ; ANODE ; ORGANOSULFIDE ; SPECTROSCOPY ; DISSOLUTION ; INTERLAYER ; INTERFACE
Language英语
WOS Research AreaElectrochemistry
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27712
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, Q,Lu, Y,Jin, J,et al. Li1.5Al0.5Ge1.5(PO4)(3)Ceramic Based Lithium-Sulfur Batteries with High Cycling Stability Enabled by a Dual Confinement Effect for Polysulfides[J]. CHEMELECTROCHEM,2020(19):4093.
APA Wang, Q,Lu, Y,Jin, J,Chen, CH,&Wen, ZY.(2020).Li1.5Al0.5Ge1.5(PO4)(3)Ceramic Based Lithium-Sulfur Batteries with High Cycling Stability Enabled by a Dual Confinement Effect for Polysulfides.CHEMELECTROCHEM(19),4093.
MLA Wang, Q,et al."Li1.5Al0.5Ge1.5(PO4)(3)Ceramic Based Lithium-Sulfur Batteries with High Cycling Stability Enabled by a Dual Confinement Effect for Polysulfides".CHEMELECTROCHEM .19(2020):4093.
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