Thus, {HEAD ~ the content} of {TAIL ~ hydrogen fluoride} in the electrolyte is lowered to suppress manganese dissolution as much as possible by adding metal oxide nanoparticles MO having high electro negativity in order to realize performance of the spinel anode active material, so that the anode active material may achieve low price, high output, long lifespan and high capacity of rechargeable lithium batteries, as compared with the conventional anode active material 
Thus , { HEAD ~ the content } of { TAIL ~ hydrogen fluoride } in the electrolyte is lowered to suppress manganese dissolution as much as possible by adding metal oxide nanoparticles MO having high electro negativity in order to realize performance of the spinel anode active material , so that the anode active material may achieve low price , high output , long lifespan and high capacity of rechargeable lithium batteries , as compared with the conventional anode active material
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH