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Selective transporting of lithium ion by shape selective molecular sieves ZSM-5 in PEO-based composite polymer electrolyte
Xi, JY; Miao, SJ; Tang, XZ
刊名MACROMOLECULES
2004-11-16
DOI10.1021/ma048849d
37期:23页:8592-8598
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Polymer Science
研究领域[WOS]Polymer Science
关键词[WOS]MESOPOROUS SILICA ; POLY(ETHYLENE OXIDE) ; SULFATED-ZIRCONIA ; ELECTROCHEMICAL PROPERTIES ; NANOCOMPOSITE ; BATTERIES ; CONDUCTIVITY ; CATALYSTS ; FILLERS ; ISOMERIZATION
英文摘要To elucidate the mechanism of the enhancement of lithium ion transference numbers, TLi+, induced by ZSM-5 in PEO-based composite polymer electrolyte, different types of other fillers, such as ceramic fillers (SiO2 and Al2O3), solid superacid (SO4 (2-)/ZrO2), layered materials (montmorillonite), and mesoporous materials (MCM-41, HMS, and SBA-15), are selected to compare with ZSM-5 molecular sieves. The experimental results suggest that ZSM-5 may enhance the TLi+ of PEO-based composite polymer electrolytes in three ways: (1) Lewis acid-base interactions, resulting in the release of more "free" Li+ cations; (2) selective passing of Li+ cations due to the special pore size of ZSM-5 and electrostatic repulsion for ClO4- anions due to the negative environment in the channels of ZSM-5; (3) the cation-exchange centers in the framework of ZSM-5, suggesting that the Li+ cation can be ion-exchanged into the channels for charge balance, namely, provide a special conducting pathway for Li+ cation. In addition, room temperature ionic conductivity of the composite polymer electrolyte can also be increased by about 2 orders of magnitude. The high lithium ion transference numbers combined with a suitable ionic conductivity of PEO-LiClO4-ZSM5 composite polymer electrolyte suggest that it can be used as candidate electrolyte material for all solid-state rechargeable lithium polymer batteries.
语种英语
WOS记录号WOS:000225056800017
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139305
专题中国科学院大连化学物理研究所
作者单位1.Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Xi, JY,Miao, SJ,Tang, XZ. Selective transporting of lithium ion by shape selective molecular sieves ZSM-5 in PEO-based composite polymer electrolyte[J]. MACROMOLECULES,2004,37(23):8592-8598.
APA Xi, JY,Miao, SJ,&Tang, XZ.(2004).Selective transporting of lithium ion by shape selective molecular sieves ZSM-5 in PEO-based composite polymer electrolyte.MACROMOLECULES,37(23),8592-8598.
MLA Xi, JY,et al."Selective transporting of lithium ion by shape selective molecular sieves ZSM-5 in PEO-based composite polymer electrolyte".MACROMOLECULES 37.23(2004):8592-8598.
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