RT Journal Article
T1 Development of sodium hybrid quasi-solid electrolytes based on porous NASICON and ionic liquids
A1 Martínez Cisneros, Cynthia Susana
A1 Pandit, Bidhan
A1 Antonelli, C.
A1 Sánchez, Jean Yves
A1 Levenfeld Laredo, Belén
A1 Lumbier Álvarez, Alejandro
AB Lithium-ion batteries are currently the alternative of choice to overcome the increasing demand of energy. However, besides the scarcity of lithium and limited geolocation, it is believed that such batteries have already reached their maximum maturity. Sodium batteries emerge as an alternative to produce the new, so called, post-lithium batteries. In this study, we explore (i) the effect of sodium content and sintering temperature in solid electrolytes based in NASICON-type compounds and (ii) the use of two methodologies to obtain porous NASICON samples: application of natural substances and organic materials as pore-formers and freeze casting. The main purpose is the attainment of hybrid quasi-solid state electrolytes, with enhanced room temperature conductivity, based on porous ceramic electrolyte layers infiltrated with ionic liquids. Using this approach, porous samples with different microstructure and porous morphology and distribution were achieved, providing an enhancement in conductivity (ranging from 0.45 to 0.96 mS cm−1 at 30 °C) of one order of magnitude for infiltrated samples respect to pore-free samples. According to these results the porous NASICON might be considered as a functional macroporous inorganic separator that can act as a Na+ reservoir.
PB Elsevier
SN 0955-2219
YR 2021
FD 2021-12
LK https://hdl.handle.net/10016/34033
UL https://hdl.handle.net/10016/34033
LA eng
NO The authors would like to thank the Agencia Española de Investigación /Fondo Europeo de Desarrollo Regional (FEDER/UE) for funding the projects PID2019-106662RBC43. This work has also been supported by Comunidad de Madrid (Spain) - multiannual agreement with UC3M ("Excelencia para el Profesorado Universitario" - EPUC3M04) - Fifth regional research plan 2016-2020.
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RD 27 jul. 2024