This technology utilizes a ternary composite ionic structure—comprising a lithium or sodium salt, a plasticizer such as TEGDME or PEGDME, and an ionic liquid like EMIM-TFSI in a 0.9–1.1 : 0.9–1.1 : 0.9–1.1 molar ratio—combined with a UV-curable polymer to create a gel polymer electrolyte with a nano-canyon surface structure that offers both high electrical performance and mechanical stability.
Conventional solid-state polymer electrolytes suffer from low ionic conductivity. Conversely, gel polymer electrolytes have historically been limited by poor mechanical and environmental stability, leading to performance degradation under high-temperature operation or physical deformation.
This technology involves mixing and polymerizing a composite ionic structure (consisting of alkali salt, plasticizer, and ionic liquid in a 1:1:1 molar ratio) at 65–75 wt% with a UV-curable monomer to form a gel electrolyte with high ion dispersion and a nano-canyon surface structure 50–200 nm wide. Applicable to lithium and sodium-ion batteries, flexible pouch cells, and high-temperature power modules, it eliminates leakage risks while ensuring a large interfacial contact area and rapid ion transport paths.
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