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Rational Design of Hierarchical "Ceramic-in-Polymer" and "Polymer-in-Ceramic" Electrolytes for Dendrite-Free Solid-State Batteries
Huo, Hanyu; Chen, Yue; Luo, Jing; Yang, Xiaofei; Guo, Xiangxin; Sun, Xueliang
2019-05-01
Source PublicationADVANCED ENERGY MATERIALS
ISSN1614-6832
Volume9Issue:17
SubtypeArticle
AbstractSolid polymer electrolytes as one of the promising solid-state electrolytes have received extensive attention due to their excellent flexibility. However, the issues of lithium (Li) dendrite growth still hinder their practical applications in solid-state batteries (SSBs). Herein, composite electrolytes from ceramic-in-polymer (CIP) to polymer-in-ceramic (PIC) with different sizes of garnet particles are investigated for their effectiveness in dendrite suppression. While the CIP electrolyte with 20 vol% 200 nm Li6.4La3Zr1.4Ta0.6O12 (LLZTO) particles (CIP-200 nm) exhibits the highest ionic conductivity of 1.6 x 10(-4) S cm(-1) at 30 degrees C and excellent flexibility, the PIC electrolyte with 80 vol% 5 mu m LLZTO (PIC-5 mu m) shows the highest tensile strength of 12.7 MPa. A sandwich-type composite electrolyte (SCE) with hierarchical garnet particles (a PIC-5 mu m interlayer sandwiched between two CIP-200 nm thin layers) is constructed to simultaneously achieve dendrite suppression and excellent interfacial contact with Li metal. The SCE enables highly stable Li plating/stripping cycling for over 400 h at 0.2 mA cm(-2) at 30 degrees C. The LiFePO4/SCE/Li cells also demonstrate excellent cycle performance at room temperature. Fabricating sandwich-type composite electrolytes with hierarchical filler designs can be an effective strategy to achieve dendrite-free SSBs with high performance and high safety at room temperature.
Keywordcomposite electrolytes dendrite suppression garnet particles hierarchical structures solid-state Li metal batteries
DOI10.1002/aenm.201804004
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science ; Physics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:83[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27133
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Huo, Hanyu,Chen, Yue,Luo, Jing,et al. Rational Design of Hierarchical "Ceramic-in-Polymer" and "Polymer-in-Ceramic" Electrolytes for Dendrite-Free Solid-State Batteries[J]. ADVANCED ENERGY MATERIALS,2019,9(17).
APA Huo, Hanyu,Chen, Yue,Luo, Jing,Yang, Xiaofei,Guo, Xiangxin,&Sun, Xueliang.(2019).Rational Design of Hierarchical "Ceramic-in-Polymer" and "Polymer-in-Ceramic" Electrolytes for Dendrite-Free Solid-State Batteries.ADVANCED ENERGY MATERIALS,9(17).
MLA Huo, Hanyu,et al."Rational Design of Hierarchical "Ceramic-in-Polymer" and "Polymer-in-Ceramic" Electrolytes for Dendrite-Free Solid-State Batteries".ADVANCED ENERGY MATERIALS 9.17(2019).
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