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In Situ Lithiophilic Layer from H+/Li+ Exchange on Garnet Surface for the Stable Lithium-Solid Electrolyte Interface
Cai, Mingli; Lu, Yang; Su, Jianmeng; Ruan, Yadong; Chen, Chunhua; Chowdari, Bobba V. R.; Wen, Zhaoyin
2019-09-25
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume11Issue:38Pages:35030
SubtypeArticle
AbstractGarnet-type solid-state electrolytes (SSEs) show a promising application in solid-state Li batteries. Poor interfacial contact with lithium causing large interfacial impedance and dendrite penetration is a problem. Inspired by unique H+/Li+ exchange of garnet electrolyte, we used an AgNO3 aqueous solution induced strategy to construct a lithiophilic layer in situ on the garnet surface without any specific apparatus. Experimental analysis reveals the uniform distribution of Ag nanoparticles and significantly enhanced affinity between the solid state electrolyte (SSE) and Li anode for the Li-Ag alloying. As expected, the interfacial area specific resistance (ASR) is greatly reduced to similar to 4.5 Omega cm(-2), accompanying with long-cycling stability for similar to 3500 h at 0.2 mA cm(-2) and high critical current density of 0.75 mA cm(-2). With modified SSEs, quasi-solid-state batteries with a LiFePO4 or LiNi0.5Co0.2Mn0.3O2 cathode operate well at room temperature and an all-solid-state LiFePO4 /garnet/Li battery displays good cycling stability for over 200 cycles at 60 degrees C.
Keywordgarnet electrolytes H+/Li+ exchange AgNO3 aqueous solution in situ modification interfacial stability solid-state Li batteries
DOI10.1021/acsami.9b13190
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26817
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Cai, Mingli,Lu, Yang,Su, Jianmeng,et al. In Situ Lithiophilic Layer from H+/Li+ Exchange on Garnet Surface for the Stable Lithium-Solid Electrolyte Interface[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(38):35030.
APA Cai, Mingli.,Lu, Yang.,Su, Jianmeng.,Ruan, Yadong.,Chen, Chunhua.,...&Wen, Zhaoyin.(2019).In Situ Lithiophilic Layer from H+/Li+ Exchange on Garnet Surface for the Stable Lithium-Solid Electrolyte Interface.ACS APPLIED MATERIALS & INTERFACES,11(38),35030.
MLA Cai, Mingli,et al."In Situ Lithiophilic Layer from H+/Li+ Exchange on Garnet Surface for the Stable Lithium-Solid Electrolyte Interface".ACS APPLIED MATERIALS & INTERFACES 11.38(2019):35030.
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