Abstract: A method of producing an electrochemical cell includes introducing lithium into the electrochemical cell such that an amount of mobile lithium contained in the cell available for incorporation and releasing processes in electrodes exceeds, after formation, the capacity of at least one positive electrode for taking up lithium at least by a factor of 1.1, and the at least one negative electrode in terms of its capacity for taking up lithium is dimensioned to a size sufficient to be capable of taking up the entire mobile lithium contained in the cell after formation, wherein the lithium is introduced at least partially into the electrochemical cell via the at least one negative electrode by pre-lithiating the at least one negative electrode prior to combination with the at least one positive electrode or by applying metallic lithium on a surface of the at least one negative electrode.

Abstract: A composite material includes an electrochemically active organic material and an electrochemically active inorganic material. The organic material contains subunits according to formulae (I) and/or (II) wherein n is an integer not smaller than 2, Y represents an amide group (—NH—CO— or —CO—NH—), an ester group (—O—CO— or —CO—O—) or a urethane group (—NH—CO—O— or —O—CO—NH—), R1, R2, R3 and R4 each independently represent H, alkyl (preferably —CH3, —C2H5), alkoxy-(preferably —OCH3, —OC2H5), -halogen or —CN, Ar1 and Ar4 independently represent a bridging aryl group, Ar2 and Ar3 independently represent a non-bridging aryl group, and R5 is a bridging alkyl, alkene or aryl group.

Abstract: An electrode for an electrochemical element with an organic electrolyte includes a polymeric material containing or composed of subunits according to general formulae (I) and/or (II): wherein n is an integer ?2, Y represents an amide group (—NH—CO— or —CO—NH—), an ester group (—O—CO— or —CO—O—) or a urethane group (—NH—CO—O— or —O—CO—NH—), R1, R2, R3 and R4 each independently represent H, alkyl (preferably —CH3, —C2H5), Alkoxy-(preferably —OCH3, —OC2H5), -halogen or —CN, Ar1 and Ar4 independently represent a bridging aryl group, Ar2 and Ar3 independently represent a non-bridging aryl group, and R5 is a bridging alkyl, alkene or aryl group, wherein Ar1 and Ar4 in structures (I) and (II) independently represent a bridging aryl group.

Abstract: A method of producing an electrochemical cell includes introducing lithium into the electrochemical cell such that an amount of mobile lithium contained in the cell available for incorporation and releasing processes in electrodes exceeds, after formation, the capacity of at least one positive electrode for taking up lithium at least by a factor of 1.1, and the at least one negative electrode in terms of its capacity for taking up lithium is dimensioned to a size sufficient to be capable of taking up the entire mobile lithium contained in the cell after formation, wherein the lithium is introduced at least partially into the electrochemical cell via the at least one negative electrode by pre-lithiating the at least one negative electrode prior to combination with the at least one positive electrode or by applying metallic lithium on a surface of the at least one negative electrode.

Abstract: A composite material includes an electrochemically active organic material and an electrochemically active inorganic material. The organic material contains subunits according to formulae (I) and/or (II) wherein n is an integer not smaller than 2, Y represents an amide group (—NH—CO— or —CO—NH—), an ester group (—O—CO— or —CO—O—) or a urethane group (—NH—CO—O— or —O—CO—NH—), R1, R2, R3 and R4 each independently represent H, alkyl (preferably —CH3, —C2H5), alkoxy-(preferably —OCH3, —OC2H5), -halogen or —CN, Ar1 and Ar4 independently represent a bridging aryl group, Ar2 and Ar3 independently represent a non-bridging aryl group, and R5 is a bridging alkyl, alkene or aryl group.

Abstract: A formed, secondary electrochemical cell includes at least one positive electrode containing a metal compound capable of reversibly incorporating and releasing lithium in the form of ions, at least one negative electrode containing a carbon compound capable of reversibly incorporating or releasing lithium in the form of ions, and/or a metal and/or semi-metal which can be alloyed with lithium, an electrolyte via which lithium ions can migrate between the at least one positive electrode and the at least one negative electrode, and mobile lithium available for incorporation or releasing processes in the electrodes, wherein capacity of the at least one negative electrode for taking up lithium is higher than that of the at least one positive electrode, the at least one negative electrode has a higher capacity than required for taking up the entire mobile lithium contained in the cell, and the mobile lithium is contained in the cell in an amount which exceeds the capacity of the at least one positive electrode for

Abstract: An electrode for an electrochemical element with an organic electrolyte includes a polymeric material containing or composed of subunits according to general formulae (I) and/or (II): wherein n is an integer >2, Y represents an amide group (—NH—CO— or —CO—NH—), an ester group (—O—CO— or —CO—O—) or a urethane group (—NH—CO—O— or —O—CO—NH—), R1, R2, R3 and R4 each independently represent H, alkyl (preferably —CH3, —C2H5), Alkoxy-(preferably —OCH3, —OC2H5), -halogen or —CN, Ar1 and Ar4 independently represent a bridging aryl group, Are and Ara independently represent a non-bridging aryl group, and R5 is a bridging alkyl, alkene or aryl group, wherein Ar1 and Ar4 in structures (I) and (II) independently represent a bridging aryl group.

Abstract: A process of producing active material for an electrode of an electrochemical cell includes providing lithium-intercalating carbon particles having an average particle size of 1 ?m to 100 ?m as component 1, providing silicon particles having an average particle size of 5 nm to 500 nm as component 2, providing a polymer or polymer precursor which can be pyrolyzed to form amorphous carbon and is selected from the group consisting of epoxy resin, polyurethane resin and polyester resin, as component 3, mixing components 1 to 3 in to a mixture and heat treating the mixture substantially in the absence of atmospheric oxygen at a temperature at which the pyrolyzable polymer or the pyrolyzable polymer precursor decomposes to form amorphous carbon.

Abstract: A process of producing active material for an electrode of an electrochemical cell includes a buildup step A in which a pulverulent composite composed of lithium-intercalating carbon particles as component 1, silicon particles as component 2 and a polymer that can be pyrolyzed to form amorphous carbon as component 3 is formed, and a pyrolysis step B in which the composite is heat treated in the absence of atmospheric oxygen at a temperature at which the pyrolyzable polymer decomposes to form amorphous carbon, wherein the lithium-intercalating carbon particles are transferred in the buildup step A into a fluidized-bed reactor and coated with a shell composed of the polymer and the silicon particles to effect direct formation of the pulverulent composite, and the polymer that can be pyrolyzed to form amorphous carbon or a corresponding polymer precursor and/or the silicon particles are fed into the fluidized-bed-reactor as solution or suspension.

Abstract: A process of producing active material for an electrode of an electrochemical cell includes providing lithium-intercalating carbon particles having an average particle size of 1 ?m to 100 ?m as component 1, providing silicon particles having an average particle size of 5 nm to 500 nm as component 2, providing a polymer or polymer precursor which can be pyrolyzed to form amorphous carbon and is selected from the group consisting of epoxy resin, polyurethane resin and polyester resin, as component 3, mixing components 1 to 3 in to a mixture and heat treating the mixture substatually in the absence of atmospheric oxygen at a temperature at which the pyrolyzable polymer or the pyrolyzable polymer precursor decomposes to form amorphous carbon.

Abstract: A formed, secondary electrochemical cell includes at least one positive electrode containing a metal compound capable of reversibly incorporating and releasing lithium in the form of ions, at least one negative electrode containing a carbon compound capable of reversibly incurporating or releasing lithium in the form of ions, and/or a metal and/or semi-metal which can be alloyed with lithium, an electrolyte via which lithium ions can migrate between the at least one positive electrode and the at least one negative electrode, and mobile lithium available for incorporation or releasing processes in the electrodes, wherein capacity of the at least one negative electrode for taking up lithium is higher than that of the at least one positive electrode, the at least one negative electrode has a higher capacity than required for taking up the entire mobile lithium contained in the cell, and the mobile lithium is contained in the cell in an amount which exceeds the capacity of the at least one positive electrode for

Abstract: A paste for producing electrodes for lithium ion batteries includes as electrochemically active material particles of at least one of a metal/semimetal selected from the group consisting of silicon, aluminium, antimony, tin, cobalt and carbon-based particles which intercalate lithium, a binder based on a polysaccharide, water as a solvent, and an aliphatic polyester having a molar mass of 150 to 500 g/mol or an hydroxycarboxylic ester having a molar mass of 150 to 500 g/mol as a plasticizer.