/ / Silicon/polymer composite nanoparticles anode for lithium secondary battery comprising the same and method for manufacturing the silicon/polymer composite nanoparticles

摘要

The present invention relates to a silicon/polymer composite nanoparticle, an anode for a lithium secondary battery comprising the same, and a method for manufacturing the silicon/polymer composite nanoparticle, and more particularly, a polyacrylonitrile-based polymer shell layer on the surface of the silicon nanoparticle core layer. By forming silicon/polymer composite nanoparticles by forming , it is possible to prevent volume expansion due to lithium ion deintercalation and to have improved electrical conductivity. In addition, it has excellent affinity with the electrolyte, so that when it is applied as an anode active material, the output characteristics and long-term stability of the battery can be significantly improved.