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Article

Solid Polymer Electrolytes Derived from Crosslinked Polystyrene Nanoparticles Covalently Functionalized with a Low Lattice Energy Lithium Salt Moiety

1
Department of Chemistry, Illinois Institute of Technology, Chicago, IL 60616, USA
2
Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
3
Department of Physical Sciences, Dominican University, River Forest, IL 60305, USA
*
Author to whom correspondence should be addressed.
ChemEngineering 2020, 4(3), 44; https://doi.org/10.3390/chemengineering4030044
Received: 3 May 2020 / Revised: 14 June 2020 / Accepted: 6 July 2020 / Published: 16 July 2020
Three new crosslinked polystyrene nanoparticles covalently attached with low lattice energy lithium salt moieties were synthesized: poly(styrene lithium trifluoromethane sulphonyl imide) (PSTFSILi), poly(styrene lithium benzene sulphonyl imide) (PSPhSILi), and poly(styrene lithium sulfonyl-1,3-dithiane-1,1,3,3-tetraoxide) (PSDTTOLi). A series of solid polymer electrolytes (SPEs) were formulated by mixing these lithium salts with high molecular weight poly(ethylene oxide), poly(ethylene glycol dimethyl ether), and lithium bis(fluorosulfonyl)imide. The crosslinked nano-sized polymer salts improved film strength and decreased the glass transition temperature (Tg) of the polymer electrolyte membranes. An enhancement in both ionic conductivity and thermal stability was observed. For example, the SPE film containing PSTFSILi displayed ionic conductivity of 7.52 × 10−5 S cm−1 at room temperature and 3.0 × 10−3 S cm−1 at 70 °C, while the SPE film containing PSDTTOLi showed an even better performance of 1.54 × 10−4 S cm−1 at room temperature and 3.23 × 10−3 S cm−1 at 70 °C. View Full-Text
Keywords: crosslinked polystyrene; polymer-bound lithium salts; lithium-ion batteries; solid polymer electrolytes; low lattice energy lithium salts crosslinked polystyrene; polymer-bound lithium salts; lithium-ion batteries; solid polymer electrolytes; low lattice energy lithium salts
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MDPI and ACS Style

Mei, X.; Zhao, W.; Ma, Q.; Yue, Z.; Dunya, H.; He, Q.; Chakrabarti, A.; McGarry, C.; Mandal, B.K. Solid Polymer Electrolytes Derived from Crosslinked Polystyrene Nanoparticles Covalently Functionalized with a Low Lattice Energy Lithium Salt Moiety. ChemEngineering 2020, 4, 44. https://doi.org/10.3390/chemengineering4030044

AMA Style

Mei X, Zhao W, Ma Q, Yue Z, Dunya H, He Q, Chakrabarti A, McGarry C, Mandal BK. Solid Polymer Electrolytes Derived from Crosslinked Polystyrene Nanoparticles Covalently Functionalized with a Low Lattice Energy Lithium Salt Moiety. ChemEngineering. 2020; 4(3):44. https://doi.org/10.3390/chemengineering4030044

Chicago/Turabian Style

Mei, Xinyi, Wendy Zhao, Qiang Ma, Zheng Yue, Hamza Dunya, Qianran He, Amartya Chakrabarti, Christopher McGarry, and Braja K. Mandal. 2020. "Solid Polymer Electrolytes Derived from Crosslinked Polystyrene Nanoparticles Covalently Functionalized with a Low Lattice Energy Lithium Salt Moiety" ChemEngineering 4, no. 3: 44. https://doi.org/10.3390/chemengineering4030044

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