Binder composition for rechargeable lithium battery, and electrode and rechargeable lithium battery including the same

An electrode for a rechargeable lithium battery, comprising:

• a current collector;
• and
• an active material layer disposed on the current collector.
• wherein the active material layer comprises an active material;
• and a binder composition comprising a cross-linked compound of polyacrylic acid substituted with an alkali cation;
• and cross-linked with polyvinyl alcohol.

A rechargeable lithium battery comprising

• a positive electrode;
• a negative electrode;
• and
• an electrolyte,
• wherein at least one of the positive electrode and the negative electrode comprises
• a current collector;
• and
• an active material layer disposed on the current collector,
• wherein the active material layer comprises an active material and a binder composition comprising a cross-linked compound of polyacrylic acid substituted with an alkali cation;
• and cross-linked with polyvinyl alcohol.