DOI:
https://doi.org/10.14483/23448350.23926Published:
03/11/2026Issue:
Vol. 52 No. 3 (2025): August-December 2025Section:
Research ArticlesNew Lithium Bis(trifluoromethanesulfonyl)imide Electrolytes Based on Rice Starch
Nuevos electrolitos de bis(trifluorometanosulfonil)imida de litio basados en almidón de arroz
Keywords:
polymer electrolytes, ionic conductivity, biopolymers, starch, impedance spectroscopy (en).Keywords:
electrolitos poliméricos, conductividad iónica, biopolímeros, almidón, impedancia, espectroscopía (es).Downloads
Abstract (en)
In this work, biopolymer electrolyte membranes based on rice starch and CF3SO2NLiSO2CF3 (LiTFSI) were prepared via the solution casting method and characterized by impedance spectroscopy (IS), differential scanning calorimetry (DSC), and cyclic voltammetry (CV). The graphs of the ionic conductivity logarithm as a function of the inverse of the temperature exhibit an Arrhenius behavior, which indicates a thermally activated conduction process, while the DSC results reveal a step-shaped anomaly associated with the glass transition temperature (Tg) of a new polymer complex. The cyclic voltammetry analysis suggests a qualitative electrochemical stability range between -2.5 and +2.5 V. At room temperature, the highest ionic conductivity obtained was higher than 9 × 10⁻³ S·cm⁻¹ for the membrane containing 50 wt.% LiTFSI. Despite the notable enhancement in ionic conductivity, membranes with higher salt content exhibit reduced mechanical robustness and may be affected by residual moisture. These findings highlight the potential of rice starch-LiTFSI systems as promising candidates for future electrochemical devices, although further optimizations are required, such as mechanical reinforcement and more detailed stability assessments for practical implementation.
Abstract (es)
En este trabajo se prepararon membranas de electrolito biopolimérico a base de almidón de arroz y CF3SO2NLiSO2CF3 (LiTFSI) mediante el método de solución y se caracterizaron mediante espectroscopía de impedancia (IS), calorimetría diferencial de barrido (DSC) y voltametría cíclica (CV). Las gráficas del logaritmo de la conductividad iónica en función del inverso de la temperatura se ajustan a un modelo de tipo Arrhenius, lo que indica un proceso de conducción térmicamente activado, mientras los resultados de DSC revelaron una anomalía en forma de escalón asociada a la temperatura de transición vítrea (Tg) de un nuevo complejo polimérico. El análisis de voltametría cíclica sugiere un rango cualitativo de estabilidad electroquímica entre -2.5 V y +2.5 V. A temperatura ambiente, la mayor conductividad iónica obtenida fue superior a 9 × 10⁻³ S·cm⁻¹ para la membrana con 50 wt.% LiTFSI. A pesar del notable incremento en la conductividad iónica, las membranas con mayor contenido de sal presentan una menor robustez mecánica y pueden verse afectadas por la humedad residual. Estos resultados destacan el potencial de los sistemas almidón de arroz-LiTFSI como candidatos prometedores para futuros dispositivos electroquímicos, si bien se requieren optimizaciones adicionales, como el refuerzo mecánico y evaluaciones más detalladas de estabilidad para su implementación práctica.
References
Arrieta, A. A., Calabokis, O. P., & Mendoza, J. M. (2023). Effect of lithium salts on the properties of cassava starch solid biopolymer electrolytes. Polymers, 15(20), 4150. https://doi.org/10.3390/polym15204150
Arrieta, A. A., Calabokis, O. P., & Vanegas, C. (2024). Influence of lithium triflate salt concentration on structural, thermal, electrochemical, and ionic conductivity properties of cassava starch solid biopolymer electrolytes. International Journal of Molecular Sciences, 25(15), 8450. https://doi.org/10.3390/ijms25158450
Arya, A., & Sharma, A. L. (2019). Tailoring of the structural, morphological, electrochemical, and dielectric properties of solid polymer electrolyte. Ionics, 25(4), 1617-1632. https://doi.org/10.1007/s11581-019-02916-7
Aziz, S. B., Abdulwahid, R. T., Mohammed, P. A., Rashid, S. O., Abdalrahman, A. A., Karim, W. O., Al-Asbahi, B. A., Ahmed, A. A. A., & Kadir, M. F. Z. (2024). Steps towards the ideal CV and GCD results with biodegradable polymer electrolytes: Plasticized MC based green electrolyte for EDLC application. Journal of Energy Storage, 76, 109730. https://doi.org/10.1016/j.est.2023.109730
Bandara, T. M. W. J., Senavirathna, S. L. N., Wickramasinghe, H. M. N., Vignarooban, K., De Silva, L. A., Dissanayake, M. A. K. L., Albinsson, I., & Mellander, B. E. (2020). Binary counter ion effects and dielectric behavior of iodide ion conducting gel-polymer electrolytes for high-efficiency quasi-solid-state solar cells. Physical Chemistry Chemical Physics : PCCP, 22(22), 12532-12543. https://doi.org/10.1039/d0cp01547d
Bósquez-Cáceres, M. F., Hidalgo-Bonilla, S., Córdova, V. M., Michell, R. M., & Tafur, J. P. (2021). Nanocomposite polymer electrolytes for zinc and magnesium batteries: From synthetic to biopolymers. Polymers, 13(24), 4284. https://doi.org/10.3390/polym13244284
Bradford, G., Lopez, J., Ruza, J., Stolberg, M. A., Osterude, R., Johnson, J. A., Gomez-Bombarelli, R., & Shao-Horn, Y. (2022). Chemistry-informed machine learning for polymer electrolyte discovery. ACS Central Science, 9, 206-216. https://doi.org/10.1021/acscentsci.2c01123
Chatterjee, B., Kulshrestha, N., & Gupta, P. N. (2016). Nano composite solid polymer electrolytes based on biodegradable polymers starch and poly vinyl alcohol. Measurement: Journal of the International Measurement Confederation, 82, 490-499. https://doi.org/10.1016/j.measurement.2016.01.022
Dennis, J. O., Shukur, M. F., Aldaghri, O. A., Ibnaouf, K. H., Adam, A. A., Usman, F., Hassan, Y. M., Alsadig, A., Danbature, W. L., & Abdulkadir, B. A. (2023). A review of current trends on polyvinyl alcohol (PVA)-based solid polymer electrolytes. Molecules, 28(4), 1781. https://doi.org/10.3390/molecules28041781
Gucci, F., Grasso, M., Shaw, C., Leighton, G., Marchante Rodriguez, V., & Brighton, J. (2023). PEO-based polymer blend electrolyte for composite structural battery. Polymer-Plastics Technology and Materials, 62(8), 1019-1028. https://doi.org/10.1080/25740881.2023.2180391
Hina, M., Bashir, S., Kamran, K., Almomani, F., Ahmad, J., Kamarulazam, F., Ramesh, S., Ramesh, K., & Mujtaba, M. A. (2024). Energy storage devices based on flexible and self-healable hydrogel electrolytes: Recent advances and future prospects. In Journal of Energy Storage, 85, 110961. https://doi.org/10.1016/j.est.2024.110961
Jagan, M., & Vijayachamundeeswari, S. P. (2023). A comprehensive investigation of Lithium-based polymer electrolytes. Journal of Polymer Research, 30(6), 250. https://doi.org/10.1007/s10965-023-03623-8
Jansi, R., Shenbagavalli, S., Revathy, M. S., Deepalakshmi, S., Indumathi, P., & Mohammed, M. K. A. (2023). Structural and ionic transport in biopolymer electrolyte-based PVA: NaAlg with NH4Cl for electrochemical applications. Journal of Materials Science: Materials in Electronics, 34(11), 1-15. https://doi.org/10.1007/s10854-023-10302-3
Jurado, N. M., Delgado, I., & Vargas, R. A. (2013). Ionic conductivity of (PEO)10(CF3COONa)-X % Al2O3 composites. Universitas Scientiarum, 18(2), 173-180. https://doi.org/10.11144/Javeriana.SC18-2.cinc
Kalhoff, J., Bresser, D., Bolloli, M., Alloin, F., Sanchez, J. Y., & Passerini, S. (2014). Enabling LiTFSI-based electrolytes for safer lithium-ion batteries by Using linear fluorinated carbonates as (Co)solvent. ChemSusChem, 7(10), 2939- 2946. https://doi.org/10.1002/cssc.201402502
Kumar, D., & Hashmi, S. A. (2010). Ion transport and ion-filler-polymer interaction in poly(methyl methacrylate)-based, sodium ion conducting, gel polymer electrolytes dispersed with silica nanoparticles. Journal of Power Sources, 195(15), 5101-5108. https://doi.org/10.1016/j.jpowsour.2010.02.026
Mali, S., Grossman, M. V., & Yamashiota, F. (2010). Starch films: Production, properties and potential of utilization. Semina: Ciencias Agrarias, 31(1), 137-156.
Mart, E. G. (2017). Preparación de nuevos nanocomposites multifuncionales de matriz epoxi basados en el empleo de materiales grafénicos. Universidad de La Rioja, Servicio de Publicaciones.
Méry, A., Rousselot, S., Lepage, D., & Dollé, M. (2021). A critical review for an accurate electrochemical stability window measurement of solid polymer and composite electrolytes. Materials, 14(14), 3840. https://doi.org/10.3390/ma14143840
Mishra, K., Pundir, S. S., & Rai, D. K. (2017). Effect of polysorbate plasticizer on the structural and ion conduction properties of PEO–NH4PF6 solid polymer electrolyte. Ionics, 23(1), 105-112. https://doi.org/10.1007/s11581-016-1790-2
Ong, A. C. W., Shamsuri, N. A., Zaine, & S. N. A., Panuh, D., & Shukur, M. F. (n.d.). Nanocomposite polymer electrolytes comprising starch-lithium acetate and titania for all-solid-state supercapacitor. https://doi.org/10.1007/s11581-020-03856-3/Published
Rai, K. J., Saini, D. S., Shahi, P., Chaurasia, S., Yadav, D., Srivastava, N., Mishra, R., & Kumar, M. (2025). The effect of ceramic nanofillers on conductivity and ion-transport behavior in potato starch-based solid bio-polymer electrolyte for advanced energy storage devices. Ionics, 31(2), 1623-1636. https://doi.org/10.1007/s11581-024-06039-6
Rasali, N. M. J., Nagao, Y., & Samsudin, A. S. (2019). Enhancement on amorphous phase in solid biopolymer electrolyte based alginate doped NH4NO3. Ionics, 25(2), 641-654. https://doi.org/10.1007/s11581-018-2667-3
Sharma, P., & Banerjee, D. (2025). Biopolymers as solid polymer electrolytes: advances, challenges, and future prospects. Prabha Materials Science Letters, 4(2), 128-147. https://doi.org/10.33889/pmsl.2025.4.2.012
Singh, C. P., Shukla, P. K., & Agrawal, S. L. (2020). Ion transport studies in PVA:NH4CH3COO gel polymer electrolytes. High Performance Polymers, 32(2), 208-219. https://doi.org/10.1177/0954008319898242
Singh, P., Bharati, D. C., Kumar, H., & Saroj, A. L. (2019). Ion transport mechanism and dielectric relaxation behavior of PVA imidazolium ionic liquid-based polymer electrolytes. Physica Scripta, 94(10), 105801. https://doi.org/10.1088/1402-4896/ab19d9
Tang, X., & Alavi, S. (2011). Recent advances in starch, polyvinyl alcohol based polymer blends, nanocomposites and their biodegradability. Carbohydrate Polymers, 85(1), 7-16. https://doi.org/10.1016/j.carbpol.2011.01.030
Whba, R. A. G., TianKhoon, L., Su’ait, M. S., Rahman, M. Y. A., & Ahmad, A. (2020). Influence of binary lithium salts on 49% poly(methyl methacrylate) grafted natural rubber based solid polymer electrolytes. Arabian Journal of Chemistry, 13(1), 3351-3361. https://doi.org/10.1016/j.arabjc.2018.11.009
Yadav, M., Kumar, M., & Srivastava, N. (2023). High-conducting, economical, and flexible polymer-in-salt electrolytes (PISEs) suitable for energy devices: a reality due to glutaraldehyde crosslinked starch as host. Journal of Solid State Electrochemistry, 27(5), 1213-1226. https://doi.org/10.1007/s10008-023-05421-0
Yang, W., Yang, W., Zeng, J., Chen, Y., Huang, Y., Liu, J., Gan, J., Li, T., Zhang, H., Zhong, L., & Peng, X. (2024). Biopolymer-based gel electrolytes for electrochemical energy Storage: Advances and prospects. Progress in Materials Science, 144, 101264. https://doi.org/10.1016/j.pmatsci.2024.101264
Yong, J., Chen, Y. C., Aziz, S. B., Khandaker, M. U., & Woo, H. J. (2025). Correlated barrier hopping dynamics of Na+ ions in poly(vinyl alcohol) biopolymer-based solid polymer electrolytes: Electrical and structural analysis. Electrochimica Acta, 513, 145610. https://doi.org/10.1016/j.electacta.2024.145610
Yue, J., Zhang, S., Wang, X., Fu, J., Xu, Y., Weng, S., Zhu, Y., Zhao, C., Zheng, M., Wang, Y., Zhu, X., Wu, H., Wang, G., Xia, Y., Cao, M., Jing, Q., Wang, X., Xia, W., Liang, J., … Li, X. (2025). Universal superionic conduction via solid dissociation of salts in van der Waals materials. Nature Energy, 10(10), 1237-1250. https://doi.org/10.1038/s41560-026665-01853-2
Zougar, S., Morakchi, K., Zazoua, A., Saad, S., Kherrat, R., & Jaffrezic-Renault, N. (2008). Characterization of ammonium ion - Sensitive membranes in solution with electrochemical impedance spectroscopy. Materials Science and Engineering C, 28(5-6), 1020-1023. https://doi.org/10.1016/j.msec.2007.10.081
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