Electrolytic salts for lithium batteries

Abstract From the Canadian patent

57) Abstract: Orthoborate salts suitable for use as electrolytes in lithium batteries and methods for making the electrolyte salts are pro vided. The electrolytic salts have one of the formulae (1). In this formula anionic orthoborate groups are capped with two bidentate chelating groups, Y1 and Y2, Certain preferred chelating groups are dibasic acid residues, most preferably oxalyl malonyl and succinyl, disulfonic acid residues. sulfoacetic acid residues and halo-substi tuted alkylenes. The salts are soluble in non-aqueous solvents and polymeric gels and are useful components of lithium batteries in electrochemical devices.