Recording of Thursday, June 20, 2024 | The smarter E Europe | Exhibition Program | Language: English | Duration: 14:07 .
Afshin Doostdar, co-founder and CTO at Voltfang, discusses the importance of repurposing EV batteries for energy storage systems. With an increasing need for gigawatt hours of storage to enable renewable energy transitions, using automotive batteries post their first life in vehicles can be a viable solution given current recycling capacities are insufficient. EV batteries still hold considerable functionality after initial use, making them suitable for stationary applications. Doostdar delineates between "second use" and "second life" batteries; second use refers to unused surplus from production lines while second life denotes those already cycled through vehicle usage. Each type comes with its own characteristics but generally maintains low failure rates due to having passed their early high-failure phase (the 'bathtub curve'). The primary challenges in repurposing include unknown histories of battery modules and heterogeneous conditions among them. Addressing these involves stringent requalification processes—assessing remaining capacity and performance—to ensure safe integration into new systems. Proper system design tailored for stationary applications is also crucial alongside effective operation strategies ensuring longevity and safety monitoring during the second-life period ensures optimal utilization of these resources. Given Europe's predominance in NMC cell chemistries (contrasting Asia's LFP cells), understanding specific chemistry integrations further bolsters successful repurposing endeavors within regional markets.
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Under the leadership of VDMA and PEM of RWTH Aachen, this session will focus on battery safety. It is primarily aimed at installers and manufacturers who want to be brought up to date with the latest safety standards and trends in the battery storage market.
Further Talks of this session: