Use of substituted alkynyl sulfonates, carbonates and oxalates as additives in electrolytes of secondary lithium-ion batteries

摘要

The present invention relates to an electrolyte composition (A) containing
(i) at least one aprotic organic solvent,
(ii) at least one conducting salt, and
(iii) at least one compound of formula (I), (iv) optionally at least one further additive. The present invention further relates to the use of compounds of formula (I) as additive in electrolytes for electrochemical cells and to electrochemical cells comprising the inventive electrolyte composition (A).