OXIRANYL ESTER DERIVATIVES AS ADDITIVE FOR ELECTROLYTES IN 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; (iii) at least one compound of formula (I) and (iv) optionally at least one further additive.;

主权项

1. An electrolyte composition (A) comprising:
(i) an aprotic organic solvent; (ii) a conducting salt; (iii) a compound of formula (I) wherein R1 is selected from the group consisting of C(O)R7, C(O)OR7, C(O)C(O)OR7, S(O)2R7, S(O)2OR7, P(O)(OR7)R7, and P(O)(OR7)2;R2 is selected from the group consisting of H, C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C3-C6 (hetero)cycloalkenyl, C2-C6 alkynyl, C5-C7 (hetero)aryl, and C6-C13 aralkyl, wherein alkyl, (hetero)cycloalkyl, aralkyl, alkenyl, (hetero)cycloalkenyl, alkynyl, and (hetero)aryl may be substituted by one or more substituents selected from the group consisting of F, CN, C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C5-C7 (hetero)aryl, ORB, C(O)R8, C(O)OR8, OC(O)R8, OC(O)OR8, OC(O)C(O)OR8, S(O)2OR8 and OS(O)2R8; R3 and R4 are each independently from ch other selected from the group consisting of H, C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C3-C6 (hetero)cycloalkenyl, C2-C6 alkynyl, C5-C7 (hetero)aryl, and C6-C13 aralkyl, wherein alkyl, (hetero)cycloalkyl, alkenyl, (hetero)cycloalkenyl, alkynyl, (hetero)aryl, and aralkyl, may be substituted by one or more substituents selected from the group consisting of F, CN, and oxiranyl; R5 and R6 are each independently selected from the group consisting of H, C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C3-C6 (hetero)cycloalkenyl, C2-C6 alkynyl, C5-C7 (hetero)aryl, and C6-C13 aralkyl, wherein alkyl, (hetero)cycloalkyl, aralkyl, alkenyl, (hetero)cycloalkenyl, alkynyl, and (hetero)aryl may be substituted by one or more substituents selected from the group consisting of F, CN, and oxiranyl; R7 is selected from the group consisting of C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C3-C6 (hetero)cycloalkenyl, C2-C6 alkynyl, C5-C7 (hetero)aryl, and C6-C13 aralkyl, wherein alkyl, (hetero)cycloalkyl, aralkyl, alkenyl, (hetero)cycloalkenyl, alkynyl, and (hetero)aryl may be substituted by one or more substituents selected from the group consisting of F, CN, C1-C6 alkyl, C2-C6 alkenyl, C5-C7 (hetero)aryl, OR9, OC(O)R9, C(O)R9, C(O)OR9, OC(O)OR9, OC(O)C(O)OR9, S(O)2OR9, OS(O)2R9, and C3-C6 (hetero)cycloalkyl which may be substituted by one or more substituents selected from the group consisting of C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C3-C6 (hetero)cycloalkenyl, C2-C6 alkynyl, C5-C7 (hetero)aryl, C6-C 13 aralkyl, wherein alkyl, (hetero)cycloalkyl, aralkyl, alkenyl, (hetero)cycloalkenyl, alkynyl, and (hetero)aryl may be substituted by one or more substituents selected from the group consisting of F, CN, and oxiranyl; R8 and R9 are each independently selected from the group consisting of H, C1-C6 alkyl, C3-C6 (hetero)cycloalkyl, C2-C6 alkenyl, C3-C6 (hetero)cycloalkenyl, C2-C6 alkynyl, C5-C7 (hetero)aryl, and C6-C13 aralkyl, wherein alkyl, (hetero)cycloalkyl, aralkyl, alkenyl, (hetero)cycloalkenyl, alkynyl, and (hetero)aryl may be substituted by one or more substituents selected from the group consisting of F, CN, and oxiranyl; and (iv) optionally a further additive.