Selective Transporting of Lithium Ion by Shape Selective Molecular Sieves ZSM-5 in PEO-Based Composite Polymer Electrolyte
| العنوان: | Selective Transporting of Lithium Ion by Shape Selective Molecular Sieves ZSM-5 in PEO-Based Composite Polymer Electrolyte |
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| المؤلفون: | Shaojun Miao, Jingyu Xi, Xiaozhen Tang |
| المصدر: | Macromolecules. 37:8592-8598 |
| بيانات النشر: | American Chemical Society (ACS), 2004. |
| سنة النشر: | 2004 |
| مصطلحات موضوعية: | Nanocomposite, Polymers and Plastics, Chemistry, Organic Chemistry, Inorganic chemistry, chemistry.chemical_element, Electrolyte, Conductivity, Molecular sieve, Lithium perchlorate, Inorganic Chemistry, chemistry.chemical_compound, Materials Chemistry, Ionic conductivity, Lithium, Mesoporous material |
| الوصف: | 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. |
| تدمد: | 1520-5835 0024-9297 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::69d19222a31f55467f67270179c0e082 https://doi.org/10.1021/ma048849d |
| رقم الأكسشن: | edsair.doi...........69d19222a31f55467f67270179c0e082 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205835 00249297 |
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