Patent ID: 7504473

Claim:
An electrochemical cell having first and second terminals, comprising: an electrolyte disposed between the first and second terminals for providing an electrical conduction path through the electrochemical cell, the electrolyte having a plurality of polyanionic polymer chains forming a solid polymer having a negatively charged surface, each polyanionic polymer chain having a formula: M b +k [AL] p −q wherein: AL is a repeat unit in the chain wherein AL includes the formula: wherein X is a Group III element, O is oxygen, Y includes a formula OC(CR 1 2 ) a CO, SO 2 , aryl, phenyl, and R 1 -substituted phenyl, wherein a ranges from 0 to 5, R 1 is selected from the group consisting of alkyl 1,3 tetra (trifluoromethyl)ethylene dialato, halo 1,3 tetra (trifluoromethyl)ethylene dialato, and silane-co-tetraethyleneglycalato, L comprises n spacer groups z, and z is selected from the group consisting of alkyl, R 2 -substituted alkyl, alkoxy, and R 2 -substituted alkoxy, wherein R 2 is selected from the group consisting of hydrogen, halo, alkyl, alkoxy, phenyl, and substituted phenyl, and wherein n ranges from 1 to 30, and p is the number of repeating units in the polymer, q is charge on the anion, M + is a cation, b is the repeat number of compounds with a positive charge, k is the charge on the compound with a positive charge, and bk equals qp.