Hybrid Solid Polymer Electrolytes Based on Epoxy Resins, Ionic Liquid, and Ceramic Nanoparticles for Structural...

Area of Science:

• Materials Science
• Electrochemistry
• Polymer Science

Background:

• Solid polymer electrolytes (SPEs) and composite polymer electrolytes (CPEs) are essential for all-solid-state energy storage devices.
• Structural batteries and supercapacitors offer potential for electric vehicles but face challenges in electrolyte development.

Purpose of the Study:

• To synthesize and characterize novel solid polymer electrolytes (SPEs) and composite polymer electrolytes (CPEs).
• To investigate the potential of these electrolytes in advanced energy storage applications, such as supercapacitors.

Main Methods:

• Synthesis of SPEs and CPEs using epoxy resin blends, ionic liquid, lithium salt, and alumina nanoparticles.
• Characterization of mechanical properties (storage modulus) and ionic conductivity.
• Fabrication of a proof-of-concept supercapacitor to demonstrate practical application.

Main Results:

• The optimal electrolyte system (L70P30ILE40Li1MAl2) showed a storage modulus of 1.2 GPa.
• Achieved ionic conductivity of 0.085 mS/cm at 60 °C.
• Successful demonstration in a proof-of-concept supercapacitor.

Conclusions:

• The developed novel SPEs and CPEs exhibit promising mechanical and electrochemical properties for solid-state energy storage.
• The findings support the advancement of structural batteries and supercapacitors for applications like electric vehicles.