A method of preparing a cathode material for a lithium-sulphur battery

Technology description

The name of the technology: A method of preparing a cathode material for a lithium-sulphur battery
Challenge: Lithium-sulfur (Li-S) batteries are a type of rechargeable battery that
they use lithium as the positive electrode (cathode) and sulfur as the negative electrode (anode). These batteries have gained considerable attention in recent years due to their potential for high energy density and cost-effectiveness compared to traditional lithium-ion batteries. Our solution concerns the optimization of the cathode material with the aim of increasing its electrochemical performance and the associated increase in the lifetime of the Li-S battery.
Description: The optimized cathode material consists of a nitrogen-doped mesoporous carbon support structure with sulfur-filled pores. The essence of the new method of preparation of this optimized material is the use of chitosan biopolymer as a carbon precursor, with the fact that it also serves as a source of nitrogen for simultaneous doping of the carbon structure. Nitrogen doping then leads to the formation of a strong bond between the carbon and sulfur functional groups and also to an increase in the adsorption of polysulfide lithium intermediates, which improves the electrochemical performance of the cathode and increases the lifetime of the Li-S battery.
Commercial opportunity: A new highly efficient method of preparing an optimized cathode material is intended for use by manufacturers of Li-S batteries and their components.
IP protection status: Patent CZ 308296
Development status:

Phase 1

Corresponds with TRL1 and TRL2.

Basic research. A pure research based on the already observed and published facts.

  • TRL 1 represents a summary of known facts without more specific idea of new technology
  • TRL 2 represents a concrete idea of the new invention, which is still at the stage of an idea, the furthest in written form.
Partnering strategy: Collaboration licensing
More information:
Images: No picture inserted
Categories: Chemical and bioengineering
Owner of a technology: Univerzita Tomáše Bati ve Zlíně
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