What does this research mean for the field?

Gel polymer electrolyte membranes incorporating MPPyrTDI ionic liquid and fluoropolymers exhibit high ionic conductivity (>1 mS/cm) and stable electrochemical performance, serving as viable and safe alternatives to conventional liquid electrolytes in lithium-ion batteries. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop and evaluate a safe, flexible gel polymer electrolyte utilizing polar solvents and ionic liquids to replace flammable liquid electrolytes in lithium-ion batteries.

August 29, 2026Materials Science and Engineering BOpen Access

Gel polymer electrolyte for lithium-ion batteries using triethyl phosphate solvent and ionic liquid with LiTFSI/LiTDI salts

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Authors

PKPaula Keski-Korsu-PiekkariUniversity of Oulu RSRafal SlizUniversity of Oulu AFAli Huerta FloresUniversity of Oulu

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Implication

Experimental study demonstrates high ionic conductivity and cycling stability in lithium-ion batteries, indicating a safe alternative to flammable liquid electrolytes.

Key Points

To develop and evaluate a safe, flexible gel polymer electrolyte utilizing polar solvents and ionic liquids to replace flammable liquid electrolytes in lithium-ion batteries.
Fabricated gel polymer electrolyte membranes combining the ionic liquid MPPyrTDI, polar processing solvents including triethyl phosphate, and fluoropolymers Daikin NEOFLON VT-475 and PVDF-HFP.
Characterized the structural polarity, membrane morphology, ionic conductivity, and electrochemical cycling performance in lithium-ion battery cells.
Membranes formed highly amorphous, polar structures that achieved ionic conductivity values exceeding 1 mS/cm.
Electrochemical cell testing demonstrated stable cycling over 75 cycles with a discharge capacity of 95 mAh/g, confirming effective electrode interface compatibility.

Cite This Study

Keski-Korsu-Piekkari et al. (2026) studied this question.

synapsesocial.com/papers/6a9299ac8e5d7d1fc0c11be1 https://doi.org/10.1016/j.mseb.2026.119801

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Implication

Experimental study demonstrates high ionic conductivity and cycling stability in lithium-ion batteries, indicating a safe alternative to flammable liquid electrolytes.

Gel polymer electrolyte for lithium-ion batteries using triethyl phosphate solvent and ionic liquid with LiTFSI/LiTDI salts

Discussion

Member takes

Implication

Key Points

Cite This Study

Gel polymer electrolyte for lithium-ion batteries using triethyl phosphate solvent and ionic liquid with LiTFSI/LiTDI salts

Discussion

Member takes

Implication

Key Points

Cite This Study

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