Method for synthesis of monomer for single-ion battery

A method for the synthesis of a lithium single-ion monomer, the method comprising simultaneously reacting a sulfonyl chloride compound with:

• i) a fluorinated sulfonamide compound;
• and
• ii) a compound that is suitable to act as a quenching base and a lithium cation source;
• wherein the simultaneous reaction of sulfonyl chloride with the fluorinated sulfonamide compound and the compound that is suitable to act as a quenching base and a lithium cation source yields the single-ion monomer;
• wherein the sulfonyl chloride compound is of formula:
• wherein
• R1 and R2 are each independently H or F;
• R3 is H, F, CN or CH3;
• R4 is an ester group, a phenyl group with L1 substituted at ortho, para, or meta position, a fully or partially fluorinated phenyl group with L1 substituted at ortho, para or meta position, an amide group, a carbonate group, or an ether group;
• and
• L1 is a n-alkyl group, a fluorinated alkyl group, a branched alkyl group, an ethylene oxide linker, a fluorinated ethylene oxide linker, a cycloalkyl group, a fluorinated cycloalkyl group, or L1 is absent.