The Chair of Production Engineering of E-Mobility Components (PEM) of RWTH Aachen University is working on a process for liquid coating of lithium metal anodes as part of the EXIST research transfer project “LIMA.” The team is investigating the industrial feasibility of a method in which liquid lithium is applied to a substrate foil in a targeted manner. According to PEM, this technology enables the production of ultra-thin anode foils with consistent layer thickness and reduced material usage.
Eliminating multi-stage rolling
Unlike conventional rolling processes, which mechanically process lithium foils several times before lamination, the LIMA approach eliminates the need for multi-stage rolling. This is intended to reduce the significant material loss that occurs when forming thicker lithium foils. Lithium is processed directly from its molten state, which could result in additional cost advantages, according to the project team.
Spin-off to ensure industrial scaling
The project is part of the EXIST program which promotes university spin-offs. The goal is to develop an economically viable production solution and prepare for the establishment of a company. The intended LIMA spin-off will further develop the technology created and adapt it for industrial applications.
