International Business Machines Corporation

Joerg Weyerhaeuser

Thorsten Muehge

Rainer Klaus Krause

Michael Haag

Hartmut Kuehl

Johannes Windeln

A method for performance analysis and use management of a battery module is disclosed, wherein the battery module includes a multitude of interconnected battery cells and a battery management system with a plurality of dedicated analysis/control units (ACUs) that analyze performance of the battery module, the ACUs being assigned to individual battery cells and/or battery blocks of battery module. The method includes measuring current and voltage of one or more of an individual battery cell and a battery block; calculating a charge removal from the one or more of the individual battery cell and the battery block; calculating a loading charge of the one or more of the individual battery cell and the battery block; determining the remaining charge of the one or more of the individual battery cell and the battery block; and failure monitoring of the one or more of the individual battery cell and the battery block.

Analyzing and controlling performance in a composite battery module

Embodiments embed at least one Radio Frequency Identification (RFID) tag into the mold. The mold may comprise a cavity adapted to the geometrical form of the RFID tag. In some embodiments, the cavity is marginally bigger than the RFID tag. In many embodiments, the cavity with the embedded the RFID tag is covered by glue. Thus, the mold, the RFID tag and the glue may be suitable for temperatures up to, e.g., 400&#xb0; C. Further the mold and the glue may be resistant to concentrated sulfuric acid and formic acid. The serial number of the mold may be stored in the RFID tag. The RFID tag may detect characteristic data during the transfer of the solder from the mold to the wafer. In one embodiment, the RFID tag may detect the temperature. In another embodiment, a plurality of RFID tags may detect various temperatures for controlling the packaging process.

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Grolsheim, Germany

Joerg Weyerhaeuser