An electrolyte composition including a macro azo initiator containing a polyethylene oxide repeating unit, and a multi-functional urethane acrylate-based monomer, a gel polymer electrolyte including the electrolyte composition, and a lithium battery including the gel polymer electrolyte. The invention is characterized in that the copolymer is applied in powder form with a mean particle size of 1-40 &mgr;m. Next, the system extracts image features from the image. The at least one connector arrangement containing data at least about required bandwidth, identification and receivingtransmitting device data format.