Inspection and Evaluation Method to Repurpose Used Batteries
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Production engineering (MPPEN), MSc
Publicerad
2024
Författare
Svensson, Daniel
Särnevång, Albert
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
This Master’s Thesis presents a comprehensive study on the inspection and evaluation
method for repurposing used batteries. Focusing on the transition from
serving its first life in an electric vehicle (EV) to becoming a part of a Battery Energy
Storage System (BESS). The research addresses the need for a standardized
and scalable evaluation method, in order to ensure safe and effective utilization of
second-life batteries (SLB). By leveraging insights from the batteries first life, performance
requirements for BESS applications, and existing industry practices, the
thesis proposes a structured evaluation process.
Through a combination of background study, literature review, empirical studies,
and interviews with industry stakeholders, the thesis identifies key factors in developing
an efficient evaluation method for repurposing used batteries. The results
highlight the challenges and opportunities in the current industry practices, emphasizing
the importance of established policies and regulatory standards in enabling
successful battery repurposing. The proposed evaluation method is presented using
the IDEF0 modeling methodology, and consists of four major activities. The
activities are referred to as visual inspection and safety evaluation, first screening,
diagnostic packages, and finally classification and BESS matching.
The findings of the research study contribute to advancing the field of battery repurposing
by providing a practical framework for stakeholders in the automotive
industry, remanufacturers, and energy utility suppliers. The proposed evaluation
method offers a systematic and comprehensive approach to repurposing used batteries,
facilitating the transition towards a circular economy and sustainable energy
solutions. The findings and recommendations presented in this thesis serve as a valuable
guide for enhancing current practices in battery repurposing and promoting the
generalization of the results. The findings of this study will serve as a guideline for
the sorting, grading, and assessment of retired flat and cubic batteries from EVs, as
well as demonstrate the technical feasibility of how to grade and repurpose retired
batteries for two different types of BESS applications.
Beskrivning
Ämne/nyckelord
Electrification , Sustainable Energy , Circular Economy , Battery Repurposing , second-life Applications , Battery Management System , Battery Energy Storage System , Sustainable Transition , Performance Evaluation