Lithium Dispenser System for Manufacturing of an Electrode Receives Patent Application

Strategic Insights -

Researchers at various institutions in the US have developed a patent application for a lithium dispenser system to manufacture electrodes for battery-powered devices. The system integrates a feeder spool, an application roller, and a rewind spool to deposit a conductive foil layer onto a solid-state electrolyte (SSE) layer of an electrode stack through gravitational force and surface energy. This innovative approach aims to improve the manufacturing efficiency of lithium-based and other solid-state battery technologies.

Key Takeaways:

  • The lithium dispenser system is designed to deposit a conductive foil layer onto an SSE layer of an electrode stack through gravitational force and surface energy.
  • The system includes a feeder spool containing a conductive foil layer and an interleaf layer, an application roller receiving the conductive foil layer and the interleaf layer, and a rewind spool containing a remaining interleaf layer after the conductive foil layer is applied onto the SSE layer.
  • The conductive foil layer is deposited onto the SSE layer through a gravitational force on the conductive layer and/or a surface energy between the conductive foil layer and the SSE layer.
  • The rewind spool provides a pulling force to remove the interleaf layer as the conductive layer is deposited onto the SSE layer by the application roller.
  • The system can also include a pressing device to laminate the SSE layer and the second SSE layer to the conductive foil layer.
  • The inventors' disclosed various aspects of the system, including methods for manufacturing a battery electrode, which involve feeding an interleaf layer from a feeder spool, applying the conductive foil layer onto an SSE layer, and passing the conductive foil layer and the SSE layer through a pressing device.

Statistics:

  • The patent application was filed on December 18, 2024.
  • The patent application was posted online on July 24, 2025.
  • The inventors' method for manufacturing a battery electrode involves a process chain with multiple steps, including feeding an interleaf layer from a feeder spool, applying the conductive foil layer onto an SSE layer, and passing the conductive foil layer and the SSE layer through a pressing device.

Sources:

  • IQBAL, Sikandar; KELLY, Brandon; YANG, A. Lithium Dispenser System For Manufacturing Of An Electrode. U.S. Patent Application Number 20250239641.
  • Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(20250239641)&db=US-PGPUB&type=ids