03 Sep Poly(MTFSILi)

Product of the month | September 2026

Solid-state batteries require electrolytes combining ionic conductivity, electrochemical stability and mechanical integrity. This month, SPECIFIC POLYMERS highlights Poly(MTFSILi) – SP-4P-6-004, a high-molecular-weight lithium single-ion conducting polymer.

Poly(MTFSILi) bears lithium sulfonyl(trifluoromethanesulfonyl)imide groups directly attached to its polymer backbone. This architecture immobilizes the anionic species while allowing lithium ions to act as the mobile charge carriers. It therefore provides a promising building block for limiting anion migration and increasing the lithium-ion transference number in polymer electrolytes.

Poly(MTFSILi) can be investigated in solid polymer electrolytes, blends and composite electrolyte formulations. In particular, its combination with neutral ion-solvating polymers such as poly(ethylene oxide) offers opportunities to adjust lithium-ion transport, morphology and mechanical properties.

Poly(MTFSILi) is available from SPECIFIC POLYMERS in research quantities (5g to 50g batches) to support the development and optimization of next-generation lithium battery electrolytes.

Discover Poly(MTFSILi) and contact our team to evaluate it in your electrolyte formulation.