Methide salts, formulations, electrolytes and batteries formed therefrom

A composition for use as an electrolyte, comprising:

• a nonaqueous matrix;
• and
• an ionizable compound, said ionizable compound being in said nonaqueous matrix and having the formula ##STR18## wherein Y, Y', and Y" are each selected from the group consisting of >SO.sub.2 and >CO.sub.2 ;
• R and R' are separate halogenated alkyl groups of 1-4 carbon atoms, respectively, or are joined together to constitute a unitary halogenated alkylene radical of from 2-4 carbon atoms linking Y and Y' and forming a ring structure which includes R, R', Y, Y', and the carbon atom to which Y and Y' are attached;
• and
• R" is selected from the group consisting of alkyl radicals of 1-4 carbon atoms, haloalkyl radicals of 1-4 carbon atoms, and halogenated phenyl groups.

A compound having the formula:

• ##STR19## wherein Y and Y' are each selected from the group consisting of >SO.sub.2 and >CO.sub.2 ;
• R and R' are separate halogenated alkyl groups of 1-4 carbon atoms, respectively, or are joined together to constitute a unitary halogenated alkylene radical of from 2-4 carbon atoms linking Y and Y' and forming a ring structure which includes R, R', Y, Y', and the carbon atom to which Y and Y' are attached;
• and
• Z is a strongly electron withdrawing substituent selected from the group consisting of --NO.sub.2, --CN, --F, and perfluorinated alkyls and aryls containing no more than 8 carbons.

An electrochemical cell, comprising

• an anode;
• a cathode;
• and
• an electrolyte which comprises a nonaqueous matrix and an ionizable compound, said ionizable compound being in said nonaqueous matrix and having the formula ##STR20## wherein Y and Y' are each selected from the group consisting of >SO.sub.2 and >CO.sub.2 ;
• R and R' are separate halogenated alkyl groups of 1-4 carbon atoms, respectively, or are joined together to constitute a unitary halogenated alkylene radical of from 2-4 carbon atoms linking Y and Y' and forming a ring structure which includes R, R', Y, Y', and the carbon atom to which Y and Y' are attached;
• and
• Z is a strongly electron withdrawing substituent selected from the group consisting of --NO.sub.2, --CN, --F, and perfluorinated alkyls and aryls containing no more than 8 carbons.

A composition for use as an electrolyte, comprising:

• a nonaqueous matrix;
• and
• an ionizable compound, said ionizable compound being in said nonaqueous matrix and having the formula ##STR21## wherein Y and Y' are each selected from the group consisting of >SO.sub.2 and >CO.sub.2 ;
• R and R' are separate halogenated alkyl groups of 1-4 carbon atoms, respectively, or are joined together to constitute a unitary halogenated alkylene radical of from 2-4 carbon atoms linking Y and Y' and forming a ring structure which includes R, R', Y, Y', and the carbon atom to which Y and Y' are attached;
• and
• Z is a strongly electron withdrawing substituent selected from the group consisting of --NO.sub.2, --CN, --F, and perfluorinated alkyls and aryls containing no more than 8 carbons.