Patent ID: 11923509
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An electrolyte for a lithium secondary battery, the electrolyte comprising:
a lithium salt present in a concentration of 1.6 M to 5 M;
an oligomer mixture including a first oligomer containing a unit represented by Formula 1 and a second oligomer containing a unit represented by Formula 2a or 2b; and
an organic solvent:, wherein, in Formula 1,
Ra and Rb are each independently hydrogen or an alkyl group having 1 to 5 carbon atoms, and
p is an integer of 1 to 50,, wherein, in Formula 2a,
Rh, Ri, Rj, and Rk are each independently hydrogen or an alkyl group having 1 to 5 carbon atoms,
Rm is an aliphatic hydrocarbon group or an aromatic hydrocarbon group,
R″ is hydrogen or an alkyl group having 1 to 3 carbon atoms,
m is an integer of 1 to 3,
t is an integer of 1 to 20, and
u is an integer of 1 to 10, and
s is an integer of 1 to 50,, wherein, in Formula 2b,
Rh, Ri, Rj, and Rk are each independently hydrogen or an alkyl group having 1 to 5 carbon atoms,
Rm is an aliphatic hydrocarbon group or an aromatic hydrocarbon group,
m′ is an integer of 1 to 2,
m″ is an integer of 1 to 3,
s is an integer of 1 to 50,
t is an integer of 1 to 20, and
u is an integer of 1 to 10.