A multivariate KPI-based method for quality assurance in lithium-ion-battery production

T. Kornas, E. Knak, R. Daub, U. Bührer, C. Lienemann, H. Heimes, A. Kampker, S. Thiede, C. Herrmann

Research output: Contribution to journalConference articleAcademicpeer-review

4 Citations (Scopus)
125 Downloads (Pure)

Abstract

The development of lithium-ion batteries (LIBs) is facing challenges due to the high level of uncertainty in cause-effect-relationships (CERs) in the manufacturing process. This process is characterized as an interlinked chain of input, intermediate and quality properties, which determine the quality of LIBs. In order to reduce the ramp-up time for LIB production plants, an understanding of influencing properties must be established. Existing methods to investigate these properties are usually expert-based or assess individual process steps. Thus, this paper presents a method, which utilizes multivariate process capability indices for the identification of CERs and quality assurance in the field of LIB production. This data-driven approach was applied to and evaluated on the production data of the prototype line for prismatic LIBs at the BMW Group in Munich.
Original languageEnglish
Pages (from-to)75-80
JournalProcedia CIRP
Volume81
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event52nd CIRP Conference on Manufacturing Systems, CIRP CMS 2019 - Ljubljana, Slovenia
Duration: 12 Jun 201914 Jun 2019
Conference number: 52

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