Study of solid polymer electrolyte based on biodegradable polymer polycaprolactone

Mashadi Sunandar, Evi Yulianti, Deswita Deswita, Sudaryanto Sudaryanto


In this research the polymer electrolyte materials based on poly caprolactone (PCL) has been synthesized and characterized. Polycaprolactone is a non-toxic and biodegradable polymer that is environmentally friendly. The preparation of the polymer electrolyte film is carried out by a casting method whereby the PCL polymer is dissolved in a tetrahydrofuran (THF) solvent. Lithium perchlorate salt (LiClO4) as a source of lithium ions then was added to solution with a composition (5-40)% by weight. The solution was evaporated slowly in vacuum oven until the film was formed. The ionic conductivity, crystal structure, morphology and thermal properties of the polymer electrolyte were characterized by impedance spectroscopy X-ray diffraction (XRD) and Infrared Spectrometer (FTIR, Scanning Electron Microscope (SEM). and Differential Scanning Calorimeter (DSC) respectively. The results of the conductivity measurements showed that the PCL conductivity increased from 3.45 x 10-11 Scm-1 to 5.52 x 10-6 Scm-1 with a 30% weight salt content of LiClO4. Observations with XRD show a more amorphous polymer with more salt addition and FTIR results show that there is interaction between active groups on polymers with salt. The thermal properties show that the melting points of polymer become lower with more salt addition.



biodegradable polymer; polycaprolactone; polymer electrolyte; LiClO4

Full Text:



C. P. Fonseca, F. Cavalcante, F. A. Amaral, C. A. Zani Souza, S. Neves. Thermal and conduction properties of a PCL-biodegradable gel polymer electrolyte with LiClO4 , LiF3, CSO3, LiBF4 salts. International Journal of Electrochemical Science, vol. 2, pp. 52 - 63, 2007.

E. Kartini, W. Honggowiranto, H. Jodi, A. K. Jahya. Synthesis and characterization of new solid electrolyte layer (Li2O)2 (P 2O5)Y. 14th Asian Conference on Solid State Ionics, vol. 2, pp. 978 - 981, 2014.

H. J. Woo, C.-W. Liew, S. R. Majid, a. K. Arof. Poly( -caprolactone)-based polymer electrolyte for electrical double-layer capacitors. High Performance Polymers, vol. 26, no. 6, pp. 637 - 640, 2014.

S. Aziz. Li+ ion conduction mechanism in poly (ε-caprolactone)-based polymer electrolyte. Iranian Polymer Journal, vol. 22, no. 12, pp. 877 -883, 2013.

E. Quartarone, P. Mustarelli, A. Magistris. PEO-based composite polymer electrolytes, vol. 110, no. February, pp. 1–14, 1998.

W. Li, Y. Pang, J. Liu, G. Liu, Y. Wang, Y. Xia. RSC Advances, vol. 7, pp. 23494–23501, 2017.

J. Zhang, N. Zhao, M. Zhang, Y. Li, P. K. Chu, X. Guo, Z. Di, X. Wang, and H. Li. Nano energy flexible and ion-conducting membrane electrolytes for solid-state lithium batteries : Dispersion of garnet nanoparticles in insulating polyethylene oxide. Nano Energy, vol. 28, pp. 447–454, 2016.

C. Kuo, W. Li, P. Chen, J. Liao, C. Tseng, T. Wu. Effect of plasticizer and lithium salt concentration in PMMA- based composite polymer electrolytes. International Journal of Electrochemical Science, vol. 8, pp. 5007–5021, 2013.

M. M. Noor, M. A. Careem, S. R. Majid, A. K. Arof. Characterisation of plasticised PVDF–HFP polymer electrolytes. Materials Research Innovations, vol. 15, no. s2, pp. s157–s160, 2011.

M. Y. A. Rahman, A. Ahmad, T. K. Lee, Y. Farina, H. M. Dahlan. Effect of ethylene carbonate (EC) plasticizer on poly (vinyl chloride)-liquid 50% epoxidised natural rubber (lenr50) based polymer electrolyte. Materials Sciences and Applications, vol. 2, no. July, pp. 818–826, 2011.

S. K. Deraman, N. S. Mohamed, R. H. Y. Subban. Conductivity and electrochemical studies on polymer electrolytes based on poly vinyl (chloride) - ammonium triflate-ionic liquid for proton battery. International Journal of Electrochemical Science, vol. 8, no. 1, pp. 1459 -1468, 2013.

N. H. Ahmad, M. I. N. Isa. Ionic conductivity and electrical properties of carboxymethyl cellulose - nh 4 cl solid polymer electrolytes. Journal of Engineering Science and Technology, vol. 11, no. 6, pp. 839–847, 2016.

M. H. Khanmirzaei, S. Ramesh. Ionic transport and FTIR properties of lithium iodide doped biodegradable rice starch based polymer electrolytes. International Journal of Electrochemical Science, vol. 8, pp. 9977–9991, 2013.

E. Yulianti, A. K. Karo, L. Susita. Synthesis of electrolyte polymer based on natural polymer chitosan by ion implantation technique. Procedia Chemistry, vol. 4, pp. 202–207, 2012.

S. Çavuş and E. Durgun. Poly (vinyl alcohol) based polymer gel electrolytes : Investigation on their conductivity and characterization. Acta Physica Polonica A, vol. 129, no. 4, pp. 621–624, 2016.

K. Sownthari. Synthesis and characterization of an electrolyte system based on a biodegradable polymer. Express Polymer Letters, vol. 7, no. 6, pp. 495–504, 2013.

H. J. Woo and A. K. Arof. Vibrational studies of flexible solid polymer electrolyte based on PCL-EC incorporated with proton conducting NH4SCN. Spectrochimica Acta Part A, vol. 161, no. March, pp. 44–51, 2016.

S. Subramanian and V. Pandi. Preparation and characterization of PVA complexed with amino acid, proline. Ionics International Journal of Ionics The Science and Technology of Ionic Motion. Berlin: Springer, 2014.

M. Prabu, S. Selvasekarapandian, A. R. Kulkarni, G. Hirankumar, C. Sanjeeviraja. Conductivity and dielectric studies on LiCeO2. Journal of Rare Earths, vol. 28, no. 3, pp. 435–438, 2010.

H. J. Woo, S. R. Majid, and A. K. Arof. Effect of ethylene carbonate on proton conducting polymer electrolyte based on poly(??-caprolactone) (PCL). Solid State Ionics, vol. 252, pp. 102–108, 2013.

P. C. Barbosa, L. C. Rodrigues, M. M. Silva, and M. J. Smith. Characterization of pTMC n LiPF 6 solid polymer electrolytes. Solid State Ionics, vol. 193, pp. 39–42, 2011.

M. Ravi, S. Song, and J. Wang. Preparation and characterization of biodegradable poly (ε -caprolactone)-based gel polymer electrolyte films. International Journal of Ionics The Science and Technology of Ionic Motion, Vol. 22, No. 5. pp. 661-670, 2016.

I. Wu, F. Chang. Determination of the interaction within polyester-based solid polymer electrolyte using FTIR spectroscopy. Polymer, vol. 48, issue 4, 989-996, 2007.

S. Abarna and G. Hirankumar. Study on new lithium ion conducting electrolyte based on Polyethylene glycol-p-tertoctyl phenyl ether and lithium perchlorate. International Journal of ChemTech Research, vol. 6, no. 13, pp. 5161–5167, 2014.

S. Selvasekarapandian, R. Baskaran, and O. Kamishima, “Laser Raman and FTIR studies on Li + interaction in PVAc – LiClO 4 polymer electrolytes. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, vol. 65(5), pp. 1234–1240, 2006.



  • There are currently no refbacks.

Copyright (c) 2019 mashadi Sunandar, Evi Yulianti, Evi Yulianti, Deswita Deswita, Deswita Deswita, Sudaryanto Sudaryanto, Sudaryanto Sudaryanto

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.


Copyright © 2005 Penerbit UTM Press