Automated Disassembly of Battery Systems to Battery Modules

Abstract

The increasing market share of electric vehicles leads to a growing demand for raw materials such as lithium and cobalt, where the supply situation is fraught with risk. Product-specific challenges regarding high voltage, product state/variance, and labor shortage require flexible automated non-/ semi-/ destructive disassembly. However, there is a need to implement industrial, scalable automation approaches to deal with this problem. This paper addresses the development of a flexible robotic cell for the fully automated disassembly of battery modules from battery systems. The paper presents all required tools and processes for battery diagnoses, machine learning-based object recognition, loosening and removing fasteners, opening sealings, gripping components, separating cables and plugs, and removing the battery modules. Based on this, a sorted disposal/recycling of the material can be realized. Finally, the holistic robot cell, including a safety concept, is described using the example of an actual disassembly process.