Challenges and prospects of automated disassembly of fuel cells for a circular economy

IF 5.4 Q1 ENVIRONMENTAL SCIENCES Resources, conservation & recycling advances Pub Date : 2023-07-17 DOI:10.1016/j.rcradv.2023.200172

Anwar Al Assadi , Dominik Goes , Sabri Baazouzi , Malena Staudacher , Piotr Malczyk , Werner Kraus , Frank Nägele , Marco F. Huber , Jürgen Fleischer , Urs Peuker , Kai Peter Birke

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Abstract

The hydrogen economy is driven by the growing share of renewable energy and electrification of the transportation sector. The essential components of a hydrogen economy are fuel cells and electrolysis systems. The scarcity of the resources to build these components and the negative environmental impact of their mining requires a circular economy. Concerning disassembly, economical, ergonomic, and safety reasons make a higher degree of automation necessary.

Our work outlines the challenges and prospects on automated disassembly of fuel cell stacks. This is carried out by summarizing the state-of-the-art approaches in disassembly and conducting manual non-/destructive disassembly experiments of end-of-life fuel cell stacks. Based on that, a chemical and mechanical analysis of the fuel cell components is performed. From this, an automation potential for the disassembly processes is derived and possible disassembly process routes are modeled. Moreover, recommendations are given regarding disassembly system requirements using a morphological box.

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