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LISZUBA
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LISZUBA

LISZUBA

Sponsor: BMBF

Contact person : Dominik Steckermeier

Summary of the overall project:

Safe and efficient batteries are an indispensable prerequisite for the upcoming transformations in the energy and transport sector.
Sulphur provides a very high specific capacity of 1675mAh/g as active material on the cathode side. It is non-toxic and, unlike transition metals required for conventional lithium ion batteries, ubiquitously available.
Solid electrolytes allow the use of metallic lithium as anode, which also allows a much higher specific capacity to be achieved than with conventional lithium ion batteries. However, they also bring new challenges in the field of processing. The various available material classes also differ significantly in their processability and (electro)chemical stability.
In the LISZUBA project, a hybrid solution consisting of a ceramic solid electrolyte on the anode side and a sulfide glass on the cathode side will be developed. While the hard ceramic solid electrolyte is not only stable against lithium, but can also prevent dendrite growth. The ductile sulfide solid electrolyte can buffer the volume change of the sulfur during cyclization. At the Institute of Particle Technology the primarily processing of the sulfidic glass is investigated. Special attention is paid to the interface of the two electrolytes.

LISZUBA

Goals and tasks of iPAT

  • Comminution of ceramic solid electrolytes into the nanometer range
  • Studies on the formation of composites of sulphur and carbon
  • Development of a hybrid system with solid electrolyte on the anode side and liquid electrolyte on the cathode side
  • Evaluation of scalable process routes for the processing of sulfide glass for the production of cathodes and separators

 

Project partners
Forschungszentrum Jülich; JLU Gießen; TU Berlin

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