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AssigneeMaterials and Electrochemical Research (MER) Corporation
InventorsRaouf O. Loutfy, Muhammed Y. Saleh
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A rechargeable electrochemical cell 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 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 C.sub.60 or C.sub.70, adsorbed thereon and serving as the anode; whereby they provide a lithium-ion cell 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.
A rechargeable electrochemical cell comprising a body of aprotic, non-aqueous electrolyte, first and second electrodes in effective contact with said electrolyte, the first electrode comprising a lithiated intercalation compound, and the second electrode comprising carbon having a hydrogenated fullerene material adsorbed thereon.
A method of making an improved lithium-ion cell that comprises the steps of assembling first and second electrodes in effective electrochemical contact with a body of aprotic, non-aqueous electrolyte while maintaining said electrodes spaced from one another to avoid direct electrical contact between them, the first of said electrodes comprising a lithiated intercalation compound serving as the cathode electrode of said cell and the second of said electrodes comprising a modified carbon material serving as the anode of said cell, and wherein said method further involves the process of producing said modified carbon material by adsorbing hydrogenated fullerene on carbon to form the modified carbon of said anode.
Dependencies are inferred from the claim text.