Abstract: A composite carbon/polymer electrode for a rechargeable electrochemical lithium cell comprises a powder of carbonaceous material and a coating polymer rendered ionically conductive by the addition of a lithium salt, and possibly carbon black or carbon fibers. The carbonaceous material has a proportion of volatile matter between 5 and 22 wt %, and is preferably a raw coke or a semi-coke.

Abstract: The subject of the present invention is an electrode based on carbonaceous material for rechargeable electrochemical lithium generators. The carbonaceous material is a pitch coke with a mosaic texture subjected to a pre-lithiation treatment before the production of the electrode. The carbonaceous material is preferably a coal tar pitch coke with a mosaic texture. The specific reversible capacities are greater than 400 mAh/g.

Abstract: The present invention relates to a rechargeable battery with solid electrolyte.The battery according to the invention comprises a solid polymer electrolyte, an anode composed of a lithium source and a cathode comprising a lithium-receiving material. The lithium-receiving material is a compound of the formula CF.sub.x M.sub.y, where M is chosen from I, Cl, Br, Re, W, Mo, B and 0.3.ltoreq.x.ltoreq.0.9, 0.02.ltoreq.y.ltoreq.0.06, and the structure of this material is such that the carbon atoms form planar hexagons.The battery according to the invention has improved capacity.

Abstract: A lithium cell comprising a negative pole made of lithium and a positive pole made of a vanadium fluoride-graphite intercalation compound of the formula C.sub.x VF.sub.6 wherein x is from 8.0 to 80.

Abstract: The present invention relates to insertion compounds with improved performances for electrochemical applications. They are characterized in that they are obtained from a graphite with a specific surface area of at least 100 m.sup.2 /g, and a granulometry at most equal to 4 .mu.m. The graphite oxide or the graphite-NiCl.sub.2 first stage obtained from such a graphite is used as constituting agent of the cathode of a lithium battery and it gives to same excellent characteristics. The graphite oxide performances may further be improved by preparing it by double oxidation of a graphite having any specific surface area and the granulometry is of the order of the .mu.m, as shown by FIG. 2 which represents the intensiostatic discharge curves of the lithium batteries the cathode of which contains the graphite oxide.