Assessing the Profitability of a Remanufactured Electric Vehicle Battery Pack

Abstract

Background: The rapid global adoption of electric vehicles (EVs) is generating a growing stream of lithium-ion battery packs reaching their end-of-first-life (EOFL), typically with 70-80% of their original capacity remaining. While recycling recovers valuable materials, remanufacturing, the process of disassembling, testing, repairing, and reconfiguring these packs for secondary applications, presents a promising circular economy strategy. This approach can create significant economic value and mitigate environmental impacts. However, the commercial viability of this practice remains uncertain due to a complex interplay of technical, logistical, and market factors. This study conducts a detailed techno-economic assessment to develop a robust profitability model for EV battery pack remanufacturing. Objectives: This study aims to construct a comprehensive financial model to determine if the revenues from selling remanufactured EV battery packs outweigh the total costs incurred in the remanufacturing process, thereby achieving a measurable and attractive profit. Methods: The methodology involves creating a comprehensive cost-revenue model. Key cost drivers are quantified, including core acquisition (cost of the EOFL pack), reverse logistics (transportation and collection), diagnostic testing, disassembly labour, replacement of defective cells or modules, and reassembly. Revenue streams are analyzed across multiple second-life applications, each with distinct market values and technical requirements. These include stationary energy storage systems (ESS) for residential, commercial, and grid support, as well as reuse in lower-demand mobility applications, such as forklifts or urban delivery vehicles. Scenario analysis is used to identify the most critical variables that influence profitability. Results: The results indicate that under optimised conditions, such as economies of scale, design-for-remanufacturing principles, and access to high-value second-life markets like grid-scale ESS, remanufacturing can achieve a positive net present value (NPV) and attractive internal rates of return (IRR). However, the current nascent state of the market, characterised by high core costs and volatile resale prices, presents significant financial risk. This study concludes that while a profitable remanufacturing operation is feasible, its realisation is contingent upon strategic partnerships between OEMs, remanufacturers, and second-life off-takers, supportive policy frameworks, and continued innovation in automated disassembly and diagnostic technologies. The findings provide a critical decision-support framework for investors, policymakers, and entrepreneurs seeking to capitalise on the emerging circular economy for EV batteries.