| 摘要 |
A nano composite binder is provided to improve conductivity of a negative electrode, improve mechanical properties, and prevent a negative electrode active material from exfoliating from a current collector by a volumetric change during charging and discharging. The nano composite binder(130) for forming an electrode of a secondary battery comprises carbon nanotubes(132) contained in a light- and/or heat-polymerizable material, polymer, or a mixture thereof. The carbon nanotube(132) is contained in an amount of 0.01-20wt% based on the total weight of the binder(130). The light- and/or heat-polymerizable material is a light- and/or heat-polymerizable monomer, oligomer, low-molecular-weight polymer, or a mixture thereof. The polymerizable monomer or oligomer is an epoxy-, urethane-, acrylate-, silicone-, hydroxyl-, or acrylic acid-based derivative. The polymerizable low-molecular-weight polymer is polyester acrylate, epoxy acrylate, urethane acrylate, or polyurethane. |
