The 3rd International Workshop On Carnot Batteries jointly organized by KIT, University Stuttgart and DLR will be held in Stuttgart on September 27-28, 2022. It will bring together experts in energy storage, in particular thermal energy storage, to discuss the state of the art of research and demonstration of Carnot batteries. In a two-day lecture program, a broad overview of innovative research approaches will be provided, and topics of different Carnot battery concepts and their demonstration and integration into the power grid and sector coupling will be addressed. The workshop serves as an international platform to present latest results in Carnot batteries research and make them internationally visible. Further information and abstract submission at https://iwcb2022.welcome-manager.de.