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Smart Battery Cell Monitoring with Contactless Data Transmission

Title data

Lorentz, Vincent ; Wenger, Martin M. ; Giegerich, Martin ; Zeltner, Stefan ; März, Martin ; Frey, Lothar:
Smart Battery Cell Monitoring with Contactless Data Transmission.
In: Meyer, Gereon (ed.): Advanced Microsystems for Automotive Applications 2012 : Smart Systems for Safe, Sustainable and Networked Vehicles. - Berlin : Springer , 2012 . - pp. 15-26
ISBN 978-3-642-29672-7

Official URL: Volltext

Project information

Project title:
Project's official title
Project's id
SuperLIB: Smart Battery Control System based on a Charge-equalization Circuit for an advanced Dual-Cell Battery for Electric Vehicles
ESTRELIA: Energy Storage with lowered cost and improved Safety and Reliability for electrical vehicles

Project financing: The research leading to these results has received funding from the European Union Seventh Framework Program (FP7/2007-2013) under grant agreement n°285224 (“SuperLIB”) and grant agreement n°285739 (“ESTRELIA”). The authors thank Justin Salminen from European Batteries Oy (Finland) for his support by providing battery cell components.

Abstract in another language

The market breakthrough of electric vehicles is mainly delayed by the still too high costs of the battery system. The smart battery cell monitoring presented in this article enables further cost reduction. It consists of battery cells integrating the monitoring electronics together with a data transfer interface for communicating in a bidirectional way with the battery management system. The data transfer interface presented in this paper is based on a differential contactless data transmission bus using galvanically isolated, capacitively coupled links to each single smart battery cell. Since neither galvanic contacts nor connectors are needed, the proposed concept provides simultaneously a very high level of reliability and robustness, and a highly cost-efficient manufacturing process, thus allowing a significant reduction of the final battery pack costs. This paper describes a possible implementation of such a differential contactless data transmission for monitoring and managing battery cells in electric vehicles.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: smart battery cells; distributed battery monitoring; battery management system; differential bidirectional data transmission bus; capacitive coupling
Institutions of the University: Research Institutions > Research Centres > Bayerisches Zentrum für Batterietechnik - BayBatt
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 03 Jun 2022 07:22
Last Modified: 12 Aug 2022 07:10