Title: Enabling Poly Ether Ether Ketone as a Solid Polymer Electrolyte for Structural Battery Composites

Authors: Mia Carrola, Amir Asadi, Ahmad Amiri, Zhenning Yu, Hilmar Koerner

DOI: 10.33599/nasampe/s.25.0168

Abstract: To advance the state of structural battery composites, more mechanically robust polymeric materials must be investigated for use as the ionically conductive electrolyte. Currently, the matrices being utilized in solid polymer electrolytes lack mechanical strength, and are often gels, due to their amorphous structure offering increased lithium-ion conductivity. To address the need for more robust, semicrystalline polymer matrices, poly ether ether ketone (PEEK) was selected as a candidate that would offer both ionic conductivity and mechanical reinforcement in these novel multifunctional composite structures. Through a series of functionalization procedures, specifically sulfonation and lithiation of the polymer chains, the PEEK exhibits ionic conductivity and an amorphous microstructure. However, to maintain the structural characteristics required of the matrix, careful functionalization is used to tailor the PEEK electrolytes and strike a balance between the two inversely related properties (ion conductivity and crystallinity). It was found that selective adjusting of the morphology of the solid electrolyte successfully enables the two properties that are most important for this multifunctional application. The discoveries presented from this work provide a foundation to continue progress on thermoplastic structural battery composites

References: [1] [2] [3] [4] [5] [6] [7] [8] [9] S. Goyal, M. J. Forrester, D. Coverdell, S. Torres, M. W. Lee, and E. W. Cochran, “HighTemperature-Performance Cyanate Ester Composites with Carboranes,” Macromolecules, vol. 54, no. 19, pp. 9155–9164, Oct. 2021, doi: 10.1021/acs.macromol.1c01410. A. Kandelbauer, “Cyanate Esters,” Handb. Thermoset Plast., pp. 425–457, Jan. 2014, doi: 10.1016/B978-1-4557-3107-7.00011-7. A. Toldy, Szlancsik, and B. Szolnoki, “Reactive flame retardancy of cyanate ester/epoxy resin blends and their carbon fibre reinforced composites,” Polym. Degrad. Stab., vol. 128, pp. 29–38, Jun. 2016, doi: 10.1016/j.polymdegradstab.2016.02.015. M. Mukhtar, D. Klosterman, and A. B. Morgan, “Preparation, Cure, Characterization, and Mechanical Properties of Reactive Flame-Retardant Cyanate Ester/Epoxy Resin Blends and their Carbon Fiber Reinforced Composites,” Compos. Part B Eng., vol. 282, no. May, p. 111580, 2024, doi: 10.1016/j.compositesb.2024.111580. S. Levchik, A. Piotrowski, E. Weil, and Q. Yao, “New developments in flame retardancy of epoxy resins,” in Polymer Degradation and Stability, Apr. 2005, vol. 88, no. 1, pp. 5762, doi: 10.1016/j.polymdegradstab.2004.02.019. A. Hosseinpour, H. Nazockdast, T. Behzad, and H. R. Salimijazi, “Investigation of the cure kinetics of an epoxy resin by advanced isoconversional and model-fitting methods,” AIP Conf. Proc., vol. 1713, no. March 2016, p. 70002, 2016, doi: 10.1063/1.4942315. M. Mukhtar and D. Klosterman, “Preparation, Cure, and Characterization of Cyanate Ester-Epoxy Blends Containing Reactive Flame Retardants,” Int. SAMPE Tech. Conf., vol. 2023-April, 2023, doi: 10.33599/nasampe/s.23.0240. J. D. Sudha, S. Pradhan, H. Viswanath, J. Unnikrishnan, P. Brahmbhatt, and M. S. Manju, “Studies on the cure parameters of cyanate ester-epoxy blend system through rheological property measurements,” J. Therm. Anal. Calorim., vol. 115, no. 1, pp. 743–750, Jan. 2014, doi: 10.1007/s10973-013-3273-2. X. Xiong, J. Ai, R. Ren, J. Wang, and G. Li, “Curing behavior and properties of ultra-high temperature resistant RTM bismaleimide resin,” High Perform. Polym., vol. 35, no. 5, pp. 469–479, Jun. 2023, doi: 10.1177/09540083221146926/ASSET/IMAGES/LARGE/10.1177_09540083221146926FIG11.JPEG. [10] M. Ivankovic, L. Incarnato, J. M. Kenny, and L. Nicolais, “Curing kinetics and chemorheology of epoxy/anhydride system,” J. Appl. Polym. Sci., vol. 90, no. 11, pp. 3012–3019, Dec. 2003, doi: 10.1002/APP.12976. [11] E. Gazo Hanna, K. Younes, S. Amine, and R. Roufayel, “Exploring Gel-Point Identification in Epoxy Resin Using Rheology and Unsupervised Learning,” Gels 2023, Vol. 9, Page 828, vol. 9, no. 10, p. 828, Oct. 2023, doi: 10.3390/GELS9100828. [12] D. A. Klosterman, “PREPARATION, CURE, AND CHARACTERIZATION OF CYANATE ESTER-EPOXY BLENDS,” in International SAMPE Technical Conference, 2022, vol. 2022-May, Accessed: Dec. 30, 2022. [Online]. Available: https://ecommons.udayton.edu/cme_fac_pub/209/. [13] J. Cheng, J. Li, and J. Y. Zhang, “Curing behavior and thermal properties of trifunctional epoxy resin cured by 4, 4’-diaminodiphenyl sulfone,” Express Polym. Lett., vol. 3, no. 8, pp. 501–509, 2009, doi: 10.3144/expresspolymlett.2009.62. [14] M. Frigione, A. Maffezzoli, P. Finocchiaro, and S. Failla, “Cure Kinetics and Properties of Epoxy Resins Containing a Phosphorous-Based Flame Retardant,” Adv. Polym. Technol., vol. 22, no. 4, pp. 329–342, 2003, doi: 10.1002/adv.10060. [15] X. Sheng, M. Akinc, and M. R. Kessler, “Cure kinetics of thermosetting bisphenol E cyanate ester,” in Journal of Thermal Analysis and Calorimetry, Jul. 2008, vol. 93, no. 1, pp. 77–85, doi: 10.1007/s10973-007-8803-3. [16] N. Puhurcuoğlu and Y. Arman, “Parameter estimation of epoxy resin cure kinetics by dynamics DSC data,” Polym. Adv. Technol., vol. 35, no. 7, pp. 1–8, 2024, doi: 10.1002/pat.6498. [17] X. Xiong et al., “Cure Kinetics and Thermal Decomposition Behavior of Novel Phenylacetylene-Capped Polyimide Resins,” Polymers (Basel)., vol. 16, no. 8, 2024, doi: 10.3390/polym16081149. [18] S. Ohashi, J. Kilbane, T. Heyl, and H. Ishida, “Synthesis and Characterization of Cyanate Ester Functional Benzoxazine and Its Polymer,” Macromolecules, vol. 48, no. 23, pp. 8412–8417, 2015, doi: 10.1021/acs.macromol.5b02285. [19] C. H. Lin, K. Z. Yang, T. S. Leu, C. H. Lin, and J. W. Sie, “Synthesis, characterization, and properties of novel epoxy resins and cyanate esters,” J. Polym. Sci. Part A Polym. Chem., vol. 44, no. 11, pp. 3487–3502, Jun. 2006, doi: 10.1002/POLA.21453. [20] S. Ohashi, J. Kilbane, T. Heyl, and H. Ishida, “Synthesis and Characterization of Cyanate Ester Functional Benzoxazine and Its Polymer,” Macromolecules, vol. 48, no. 23, pp. 8412–8417, 2015, doi: 10.1021/acs.macromol.5b02285. [21] W. Li, G. Liang, and W. Xin, “Triazine reaction of cyanate ester resin systems catalyzed by organic tin compound: Kinetics and mechanism,” Polym. Int., vol. 53, no. 7, pp. 869876, 2004, doi: 10.1002/pi.1446. [22] T. Wu, A. M. Piotrowski, Q. Yao, and S. V. Levchik, “Curing of epoxy resin with poly(mphenylene methylphosphonate),” J. Appl. Polym. Sci., vol. 101, no. 6, pp. 4011–4022, Sep. 2006, doi: 10.1002/app.22966. [23] X. Hu, J. Fan, and C. Y. Yue, “Rheological study of crosslinking and gelation in bismaleimide/cyanate ester interpenetrating polymer network,” J. Appl. Polym. Sci., vol. 80, no. 13, pp. 2437–2445, Jun. 2001, doi: 10.1002/app.1350.

Conference: SAMPE 2025

Publication Date: 2025/05/19

SKU: TP25-0000000168

Pages: 15

Price: $30.00