HYDROGENATED FULLERENES AS AN ADDITIVE TO CARBON ANODE FOR RECHARGEABLE LITHIUM-ION BATTERIES

摘要

A rechargeable electrochemical cell (101) comprising a body of aprotic, non-aqueous electrolyte, first and second electrodes in effective electrochemical contact with the electrolyte, the first electrode comprising positive active cathode materials such as a lithiated intercalation compound serving as the cathode (105) and the second electrode comprising a modified carbon material formed of a graphite or carbon based materials, for example, having a hydrogenated fullerene material, such as hydrogenated C60 or C70, adsorbed thereon and serving as the anode (104A and 104B); whereby they provide a lithium-ion cell (101) having improved reversible energy storage characteristics and irreversible energy loss characteristics as compared with similar lithium-ion cells having carbon anodes that are not so-modified with hydrogenated fullerene material.