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Re-synthesis of cathode active material
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Re-synthesis of cathode active material

Contact person: Markus Rojer

The increase in demand for lithium-ion batteries is creating a serious waste-management challenge. Moreover, the recovery of strategic and critical materials for key battery components is imperative for the sustainability of the technology. Despite the increasing number of batteries, their recycling is still facing a few hurdles. For example, contamination of cathode material by other battery cell components is a significant problem on the cathode side. During the cathode active material manufacturing process, the selected synthesis method has a significant impact on the final product. By specifically selecting the synthesis method and controlling the synthesis parameters, the influence of impurities in secondary material can be controlled and minimized. In this project, the cathode material lithium-nickel-manganese-cobalt-oxide (NMC) is used.

Project Re-synthesis of cathode active material

iPAT goals and objectives:

  • Optimization of possible synthesis routes for NMC 811 by varying the process parameters
  • Minimize the influence of impurities in secondary material by specific synthesis adjustment
  • Extensive analytical characterization of synthesized NMC (crystallinity, stability, thermal properties, particle size, electrochemical properties)
  • Develop understanding of the influence of various process parameters on the synthesized final product
  • Correlation between impurities and electrochemical properties

 

Project partners:

  • Fraunhofer IST
  • TU Clausthal
  • Leibniz University Hannover
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