TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Compound: The compound (A) is a radical scavenger or fire damping, and is of formula Z(P(=X)(OR1)(OR2)m (I) or Z1(P(=X)(OR)Z2 (II).X = O or S;R = 1-12C alkyl moieties that are terminally substituted with 0-3 halogen atoms or 5-7C aryl groups substituted with 0-4 alkyl, haloalkyl or alkoxy moieties;R1, R2 = R or trialkylsilyl moieties, where alkyl group has 1-6C, halogen is fluorine and haloalkyl moiety is fluoroalkyl moiety;Z = Ar, arylene moiety such as phenylene, pyridylene, trisubstituted benzene, trisubstituted pyridine or trisubstituted triazine, trialkylalkyleneoxysilane, dialkyldialkyleneoxysilane moiety such as dimethyl-methyleneoxysilane, alkyltrialkyleneoxysilane or tetraalkyleneoxysilane moiety such as tetramethyleneoxysilane;Ar = aryl moiety such as phenyl, 4-methylphenyl, 2,6-di-tert-butyl-4-methylphenyl, 2-tert-butyl-4-methoxyphenyl, 3-tert-butyl-4-methoxyphenyl or 3-pyridyl, aralkylene moiety such as 4-methyl-benzyl, 4-methoxy benzyl, 1,4-dimethylene benzene or 1,3,5-trimethylenebenzene, dialkylamino moiety such as dimethylamino or diethylamino, diarylamino moiety such as diphenylamino or bis(4-methylphenyl)amino, alkylarylamino moiety such as methylphenylamino or ethylphenylamino, trialkyleneamino moiety such as trimethyleneamino or triethyleneamino, cyclic amino moiety such as pyridino, piperidino, pyrrolidino or piperazino, cyclic amido moiety such as 2-imidazolidinonyl, 2-pyrrolidinono or 2-piperidinono, cyclic imido moiety such as succinimidyl or glutarimidyl, oxy derivatives of aryl moiety such as phenoxy or 2,6-di-tert-butyl-methylphenoxy, oxy derivative of cyclic imido moiety such as O-succinimidyl, oxy derivative of trialkyleneamino moiety such as trioxymethyleneamino or trioxyethyleneamino, or oxy derivative of aralkylene, arylene, dialkylamino, diarylamino, alkylarylamino, cyclic amino or cyclic amido;m = 1-4; andZ1, Z2 = Ar, preferably cyclic imido moieties.The dialkylhalophosphate is dialkylchlorophosphate.The dialkylhalothiophosphate is dialkylchlorothiophosphate.The diarylhalophosphate is diarylchlorophosphate.Preferred Composition: The electrolyte comprises thermal runaway inhibitor (0-50 weight%) having formula of compound (A).The solvent is a blend of at least two organic solvents, preferably blend of ethylene carbonate and dimethylene carbonate.The electrolyte has a maximum self-heating rate of less than 0.35 degrees C/minute. SPECIFIC COMPOUNDS - The compound (A) is diethyl(2,6-di-tert-butyl-4-methylphenyl)phosphate, diethylphosphorosuccinimidate, diethylphenylthiophosphate, benzene-1,4-bis-diethylphosphate, triethanolamino-tris-diethylphosphate, diethyl-N-succinimidylphosphate, N,N'-bis(diethylphosphoro)imidazolidone, diethyl-3-pyridylphosphate, diethylphosphorodiphenylamidate, ethylphosphorodi-N-succinimidate, 1,4-bis(diethylphosphoro)benzene, or dimethyl-bis(diethylmethylphosphonatoxy)silane.    EXAMPLE - Solution of 2,6-di-tert-butyl-4-methyl phenol (in g) (38.32) in 100 ml of dry tetrahydrofuran was added dropwise to a stirred suspension of sodium hydride (5.52) in 250 ml of dry tetrahydrofuran at 0 degrees C under argon. The reaction mixture was heated at 50 degrees C for 6 hours, cooled to 0 degrees C and the solution of diethylchlorophosphate (23.77) in 100 ml of dry tetrahydrofuran was added. Further, the mixture was heated at 50 degrees C for 18 hours and solvent was removed on a rotary evaporator. Diethylether (300 ml) was added, the mixture was stirred for 30 minutes, filtered and washed with ether. The ether was removed on rotary evaporator and the product was distilled and redistilled under reduced pressure to obtain diethyl(2,6-di-tert-butyl-4-methylphenyl)- phosphate which was used for preparing flame retardant electrolyte composition. The electrolyte composition showed no diminution in conductivities, reduced exothermic reactions at high temperatures, improved non-permeability and excellent charging and discharging capacities.