Alex Bunodiere, Joost R. Duflou

Enhancing Critical Raw Material Usage through Battery Cell Extraction and Reuse

Introduction

Enhancing critical raw material usage through battery cell extraction and reuse. Enhance critical raw material recovery and sustainability with a circular economy model for Bosch Gen 3 battery recycling and remanufacturing. Analyzes optimal collection methods.

Abstract

This paper proposes a circular economy business model for recycling and remanufacturing Bosch Gen 3 batteries to enhance sustainability and economic viability. The model integrates collection, robotic disassembly, and state-of-health-based categorisation to extract the most valuable, reusable cells and then tests a battery remanufacturing option to maximize profit and critical raw material recovery. Two collection methods are analysed: incentivized returns (Option 1) and battery waste sorting at recycling centres (Option 2). A Monte Carlo simulation evaluates profitability with several uncertainties, including logistics and deposit refunds. Option 1 is more likely to obtain higher-quality cells, but is less likely to be profitable due to the high costs associated with the incentive, while Option 2 is more cost-effective, but yields lower-quality cells. This study highlights opportunities to optimize incentives and recycling value, providing a scalable framework for sustainable battery end-of-life management.

Review

This timely paper addresses a critical need within the rapidly expanding battery market: the sustainable management of end-of-life products and the recovery of critical raw materials. By proposing a circular economy business model specifically for Bosch Gen 3 batteries, the authors outline a compelling framework for enhancing both environmental sustainability and economic viability. The core of the model lies in integrating advanced techniques—including robotic disassembly and state-of-health-based categorization—to meticulously extract and reuse valuable individual cells, thus moving beyond mere recycling to true remanufacturing. This proactive approach to extending the lifecycle of battery components is highly pertinent given current global resource constraints. The methodology employed provides a robust analytical framework, particularly through the comparative analysis of two distinct collection strategies: incentivized returns and waste sorting at recycling centres. The use of a Monte Carlo simulation to evaluate profitability under various uncertainties, such as logistics and deposit refunds, is a significant strength, offering a nuanced understanding of potential real-world challenges. The findings highlight a crucial trade-off: incentivized returns (Option 1), while yielding higher-quality cells, face profitability hurdles due to associated costs, whereas waste sorting (Option 2) proves more cost-effective but delivers cells of lower quality. This detailed comparison underscores the complexities inherent in establishing economically viable circular processes for high-value components. Overall, this study makes a valuable contribution to the field of sustainable engineering and circular economy research. It not only presents an innovative, scalable framework for battery end-of-life management but also offers practical insights into optimizing collection methods and incentive structures. The detailed analysis of profitability and quality trade-offs provides actionable intelligence for industry stakeholders and policymakers alike, guiding efforts to maximize critical raw material recovery and minimize waste. This paper serves as an important step towards realizing truly sustainable practices in the burgeoning battery sector.

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