Electrolyte membrane for lithium secondary battery and membrane-electrode structure for lithium secondary battery having the same

A binder for a lithium secondary battery,

• wherein the binder has a lithium ion transfer channel, and
• wherein the binder contains:
• a compound represented by one of following Chemical Formulas 1 to 4;
• and
• a lithium salt:
• where in the Chemical Formulas 1 to 4, m represents an integer of 45 to 90, and n represents an integer of 50 to 70, and
• wherein the lithium salt has a content of 10 to 50 weight % based on a total weight of the binder.

A membrane-electrode structure for a lithium secondary battery,

• wherein the structure has a lithium ion transfer channel, and
• wherein the structure includes:
• an electrolyte membrane containing:
• a compound represented by one of following Chemical Formulas 1 to 4;
• and
• a lithium salt;
• a binder having the same composition as the electrolyte membrane;
• and
• an electrode binding to the electrolyte membrane via the binder:
• where in the Chemical Formulas 1 to 4, m represents an integer of 45 to 90, and n represents an integer of 50 to 70, and
• wherein the lithium salt has a content of 10 to 50 weight % based on a total weight of the structure.