Fraunhofer Gesellschaft Zur F Rderung Der Angewandten Forschung E V Ber Vergabeportal Deutsche Evergabe Tender

Prior information notice without call for competition: Miscellaneous special-purpose machinery Description of the procurement: As part of the FFB, a continuous mixing system (extruder) with appropriate dosing systems is required to manufacture the anode material. The mixing plant should have a material throughput of approx. 110 to 1,200 l / h for research and production on a large scale. Dosing system: The solid active materials for the anode (graphite, silicon) should be delivered in the form of bags or big bags. Using suitable devices / systems, the raw materials should be fed into intermediate containers or directly into the dosing system, taking into account the necessary safety and protective measures. Distilled water is to be made available in tanks and fed to the plant via pipelines. The material handling and dosing of the individual components should largely be fully automated. Gravimetric dosing is planned for the solids, while liquids are added to the mixer at a constant time using pumps and flowmeters (e.g. volumetric dosing). The control of the dosing devices should be digital (IT interfaces) and linked to the mixing process. All components should be able to be fed directly into the extruder. Mixer: The anode materials should be processed with distilled water. The mixing plant should have appropriate addition points for the individual components: active materials anode (e.g. graphite, silicon), binders (e.g. SBR, PVDF, CMC), water and additives such as conductive carbon black. The mixer should be linked to a dosing system, which means that the materials are processed and metered into the system. Mixing under vacuum should allow a bubble-free dispersion. The process times until the finished suspension should be in the range of a few minutes. Various process parameters such as density or viscosity of the suspension in the extruder are to be monitored fully automatically and digitally using suitable sensors in order to be able to make statements about the mixing process and the properties of the suspension. The suspension should be characterized during the mixing process using an in-line rheometer. The finished suspension should then be able to be transferred further to a coating system via pipelines or transport containers. The design of the plant for research purposes requires a high degree of flexibility. In addition, the possibility should exist of being able to produce material of the other electrode type (cathode). Against this background, it is important that the system has an automated cleaning system so that the mixer can be used after process interruptions such as B. Material changes are quickly ready for use again. In addition, IT interfaces (OPC UA) are particularly important for process analysis. II.1.6)Information about lots This contract is divided into lots: no Scheduled date for start of award procedures and d