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Solid Polymer Electrolyte Based on Polymerized Ionic Liquid for High Performance All-Solid-State Lithium-Ion Batteries
Ma, Furui; Zhang, Zengqi; Yan, Wenchao; Ma, Xiaodi; Sun, Deye; Jin, Yongcheng; Chen, Xiaochun; He, Kuang
2019-03-04
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:5Pages:4675-4683
AbstractPolymerized ionic liquids (PILs) have several advantages over ionic liquids, such as easy handling, good electrochemical performance, and chemical compatibility. In this research, a solid-state electrolyte composite membrane was successfully fabricated by using an imidazolium-based polymerized ionic liquid as polymer matrix, a kind of porous fiber cloth as rigid frame, and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) as lithium salt. The ionic conductivity of the composite electrolyte with 2.0 mol/kg LiTFSI is 7.78 X 10(-5) S cm(-1) at 30 degrees C and reaches 5.92 x 10(-4) S cm(-1) at 60 degrees C, which is considered a satisfactory value for potential application in lithium-ion batteries. The specific discharge capacity of the LiFePO4/Li cell with as-prepared composite electrolyte is 138.4 mAh g(-1), and 90% of the discharge capacity is retained after 250 cycles at 60 degrees C. In order to further improve the conductivity, Li1.3Al0.3Ti1.7(PO4)(3) (LATP) ceramic electrolyte particles are dispersed in a PIL polymer matrix to prepare the PIL-LiTFSI-LATP composite electrolyte. LiFePO4/Li cells using PIL-LiTFSI-LATP (10 wt % LATP) as a solid-state electrolyte exhibit excellent rate performance and high capacity retention (close to 97% after 250 cycles at 60 degrees C). This work may provide a unique way to prepare a new series of electrolytes for high-performance solid-state lithium batteries.
KeywordPolymerized ionic liquids Synthesis LATP Composite electrolyte All-solid-state battery
Indexed BySCI
Language英语
WOS IDWOS:000460600500012
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81293
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ma, Furui,Zhang, Zengqi,Yan, Wenchao,et al. Solid Polymer Electrolyte Based on Polymerized Ionic Liquid for High Performance All-Solid-State Lithium-Ion Batteries[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(5):4675-4683.
APA Ma, Furui.,Zhang, Zengqi.,Yan, Wenchao.,Ma, Xiaodi.,Sun, Deye.,...&He, Kuang.(2019).Solid Polymer Electrolyte Based on Polymerized Ionic Liquid for High Performance All-Solid-State Lithium-Ion Batteries.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(5),4675-4683.
MLA Ma, Furui,et al."Solid Polymer Electrolyte Based on Polymerized Ionic Liquid for High Performance All-Solid-State Lithium-Ion Batteries".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.5(2019):4675-4683.
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