in the first season, dr. k collects solex from infected robots to utilize in his ultimate plan with the aid of an alien disguising himself as raska, the robixcorp spokeswoman. it is suspected that the solex was originally discovered by prof. nemo, but fearing the misuse of its power, separated the liquid solex into small doses, placing them in random robots (or that the explosion in his lab the day he disappeared caused the solex he was experimenting with to be transferred into the robots that were in his lab at the time).