Preparation and Characterization of Large Area Li-NASICON Electrolyte Thick Films
| Autor: | M. Lourdes Calzada, Sandra Martínez-Chaparro, Ming Rui Lin, Shu Yi Tsai, Kuan-Zong Fung, Edvardas Kazakevičius, Ricardo Jiménez, Algimantas Kežionis, Ángel Adolfo del Campo, Isabel Sobrados, Jesús Sanz |
|---|---|
| Přispěvatelé: | Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), Research Council of Lithuania |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Broad band impedance Confocal raman ceramic microstructure Sintering 02 engineering and technology Conductivity 010402 general chemistry large area 01 natural sciences Inorganic Chemistry Large area Ionic conductivity Fast ion conductor lcsh:Inorganic chemistry Ceramic Young’s modulus Composite material Microstructure confocal Raman Thick-films Li-NASICON 021001 nanoscience & nanotechnology Grain size lcsh:QD146-197 0104 chemical sciences thick-films visual_art Slurry visual_art.visual_art_medium MAS NMR ionic conductivity broad band impedance Grain boundary 0210 nano-technology |
| Zdroj: | Inorganics, Vol 7, Iss 9, p 107 (2019) Inorganics, Basel : MDPI, 2019, vol. 7, no. 9, art. no 107, p. [1-17] Inorganics Volume 7 Issue 9 Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2304-6740 |
| Popis: | The preparation of solid electrolyte ceramic membranes is the object of intense study for its fundamental parts in the development of all solid-state batteries and improved battery separators. In this work, the procurement of large area solid electrolyte ceramic thick film membranes of the Li-NASICON Li1.3Al0.3Ti1.7(PO4)3 (LATP) composition is attempted. Through the use of LATP powders from a sol&ndash gel reaction, a slurry is formulated and tape casted. The green tapes are sintered using two sintering times. In both cases, ceramic thick films of a 5.5 × 5.5 cm2 area and 250 µ m average thickness were obtained. The characterization indicated almost pure phase samples with a bi-modal microstructure composed of large and smaller grains, being larger for longer sintering time. The samples are porous and brittle, presenting very high &ldquo bulk&rdquo conductivity but lower total direct current (DC) one, as compared with the commercial Li-NASICON (OHARA) thick films with a similar area. The larger the grains, the poorer the total conductivity and the mechanical properties of the thick-films. The formation of poorly adhering grain boundaries as the grain size grows is responsible for the worsened properties. A better control of the microstructure is mandatory. |
| Databáze: | OpenAIRE |
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