BINDER SOLUTION FOR ANODE, ACTIVE MATERIAL SLURRY FOR ANODE INCLUDING THE BINDER SOLUTION, ANODE USING THE ACTIVE MATERIAL SLURRY AND ELECTROCHEMICAL DEVICE INCLUDING THE ANODE

摘要

The present invention relates to a binder solution for an anode, which includes a thermally cross-linking polymer binder that is cross-linked by heat; and a solvent that dissolves the thermally cross-linking polymer binder and which has a hydrogen ion concentration ranging from a pH of 2.5 to 4.5, an active material slurry used for an anode and including the binder solution, an anode using the active material slurry, and an electrochemical device including the anode using the active material slurry. According to an embodiment of the present invention, since volume expansion of an anode active material caused by occlusion and release of lithium according to the performance of cycles of an electrochemical device is suppressed, durability of an anode active material layer is improved to improve a life characteristic of the electrochemical device, and excellent dispersibility of an active material slurry for an anode is maintained to improve coating stability of the anode active material layer.