Abstract: Process for making an at least partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1+xTM1?xO2, wherein TM is a combination of Ni and Co or Ni and Al and, optionally, Mn, and, optionally, at least one metal selected from Ga, Nb, Ta, Mg, Mo, B, Sn, V, W, Ti and Zr, and x is in the range of from zero to 0.2, (b) treating said electrode active material with at least one carbonyl compound of Co, and (c) treating the material obtained in step (b) with an oxidant.

Abstract: A pump-storage power plant, such as an electric unit, for this purpose can include a rotating electric synchronous machine and a frequency converter as well as a method for operating the electric unit. An exemplary method provides that the frequency converter is used to start the turbine and an output of the electric machine is fed directly into the current network after start-up, for example. Another exemplary method provides that the frequency converter is used to start the pump and the pump is started directly from rest and under load of a flooded pump or a water column, for example. Another exemplary method provides that the electric machine is synchronised with a frequency of the current network and is operated synchronously with the current network independent of the operating state of the pump or the turbine and supplies active power and reactive power.

Abstract: A converter system is provided for the switching of at least three voltage levels and for the switching of two voltage levels. A method is also provided for the operation of a converter system for the switching of at least three voltage levels and for the operation of a converter system for the switching of two voltage levels.

Abstract: A method for producing storage media containing prerecorded structured information, which contains an order management and tracking system accessible via the Intranet/Internet, the conversion and/or selective extraction of searched structured information from different data sources into a universal data model, wherein the correlation of the information with the corresponding matching order from the order management and tracking system, and the provision of the storage media of any type, containing prerecorded structured information with unified format.

Abstract: The present invention relates to a computer system for the search, statistical evaluation and analysis of documents, with a server computer with means of access to an external database over a computer network, means for querying the external database according to a standard search profile, means for starting the query at predefined time intervals and means for storing data from the external database as the result of the query for an internal database.