Li1.3Al0.3Ti1.7(PO4)3 reinforced hybrid polymer composites: assessment of enhanced Li+ ion transport and potential for solid-state supercapacitor applications
| Autor: | M. Dinachandra Singh, D. M. Phase, Yogesh Kumar, Anshuman Dalvi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Supercapacitor Chemical substance Materials science 020502 materials Mechanical Engineering Ionic bonding 02 engineering and technology Polymer Conductivity Ion 0205 materials engineering chemistry Chemical engineering Mechanics of Materials General Materials Science Absorption (chemistry) Ion transport number |
| Zdroj: | Journal of Materials Science. 55:3951-3963 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-019-04234-9 |
| Popis: | Composites of Li1.3Al0.3Ti1.7(PO4)3 (LATP) with Li+ ion containing polymer polyethylene oxide (PEO), viz. 5LiCF3SO3-95[PEO1−xLATPx], are prepared in a wide composition range (0 ≤ x ≤ 0.7). A maximum conductivity of ~ 10−4 Ω−1 cm−1 at 45 °C has been achieved for a composition x = 0.7 (70 LATP). With increase in LATP content, Li+ ion transport number systematically increases, i.e., from ~ 0.12 for 0 LATP to 0.46 for 70 LATP. Ionic mobility also exhibits a gradual rise with LATP content and attains a value ~ 2 orders of magnitude higher for 70 LATP than 0 LATP. Further, the K-edge energy of ether oxygen, obtained from X-ray absorption near-edge structure spectra, does emphasize decoupling of Li+ ions from PEO matrix, particularly for large LATP content. Our investigations suggest that such hybrid films are competitive candidates for solid ionic devices. All-solid-state supercapacitors fabricated using these films demonstrate a capacity of ~ 2–4 F-g−1. |
| Databáze: | OpenAIRE |
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