Organic small structure quinones go with ionic liquids electrolytes would exhibit ultrastable electrochem-ical properties.In this study,calix[6]quinone(C6Q)cathode was matched with ionic liquid electrolyte Li[TFSI]/[PY13][TFSI](bis(trifluoromethane)sulfonimide lithium salt/N-methyl-N-propylpyrrolidinium bis(trifluoromethanesulfonyl)amide)to assemble lithium-ion batteries(LIBs).The electrochemical perfor-mance of LIBs was systematically studied.The capacity retention rates of C6Q through 1000 cycles at cur-rent densities of 0.2 C and 0.5 C were 70％and 72％,respectively.At 5 C,the capacity was maintained at 190 mAh g-1 after 1000 cycles,and 155 mAh g-1 even after 10,000 cycles,comparable to inorganic materials.This work would give a big push to the practical process of organic electrode materials in energy storage.