首页|One dimensional CeO2 nanorods/poly(ethylene oxide)solid composite electrolyte for all-solid-state lithium-ion batteries

One dimensional CeO2 nanorods/poly(ethylene oxide)solid composite electrolyte for all-solid-state lithium-ion batteries

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The research of poly(ethylene oxide)(PEO)-based solid composite electrolyte with high ionic conduc-tivity and excellent interfacial stability is the key to the development of all-solid-state lithium-ion bat-teries(ASSLIBs).Herein,uniform nanorod structured CeO2 fillers were controllably synthesized by electrospinning,which were subsequently filled into PEO polymer to prepare CeO2/PEO solid composite electrolyte.The addition of CeO2 nanorods can reduce both the glass transition temperature and the melting point of PEO polymer,and also interact with PEO and lithium bis(trifluoromethanesulphonyl)imide(LITFSI)by Lewis acid-base reaction.Therefore,the solid composite electrolyte exhibits a high ionic conductivity of 4.52 x 10-4 S/cm,a wide electrochemical stability window of about 4.8 V,and a good interfacial stability with Li at 55 ℃.Moreover,the LiFePO4/Li ASSLIB divulges the discharging specific capacity of 165,162,156 and 146 mA·h/g at 0.2,0.5,1 and 2 C,respectively,and achieves the capacity retention of 90.3％after 150 cycles at 0.5 C.Consequently,one dimensional CeO2 nanorods can be considered as an alternative filler for polymeric solid electrolyte.

Poly(ethylene oxide)Solid composite electrolyteCeO2 nanorodsIonic conductivityRare earths

Yudi Guo、Erqing Zhao、Xiaofang Zhao、Shuailei Liu

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School of Chemistry and Materials Engineering,Xinxiang University,Xinxiang,453003,China

School of Chemistry and Chemical Engineering,Henan Institute of Science and Technology,Xinxiang,453003,China

Education Department of Henan ProvinceScience and Technology Department of Henan ProvinceHenan Institute of Science and TechnologyNational College Students'Innovation and Entrepreneurship Training Program

22A1700172321022400112016034202211071012

2024

10.1016/j.jre.2023.06.006

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(3)
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