An integrated electronic circuit for decentralized monitoring of Lithium-ion battery cells
Conference: MikroSystemTechnik 2017 - Kongress
10/23/2017 - 10/25/2017 at München, Deutschland
Proceedings: MikroSystemTechnik 2017
Pages: 4Language: englishTyp: PDF
Personal VDE Members are entitled to a 10% discount on this title
Authors:
Saidani, Fida; Hutter, Franz X.; Selinger, Wilhelm; Burghartz, Joachim (Institut für Mikroelektronik Stuttgart (IMS CHIPS), Allmandring 30a, 70569 Stuttgart, Germany)
Roessler, Stefan; Braunwarth, Wolfgang (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW), Lise-Meitner-Straße 24, 89081, Ulm, Germany)
Abstract:
This work attempts to enhance the state-of-the-art intrinsic safety of Lithium-ion battery cells by integrating a monitoring device inside every cell. The cell monitoring circuit is a compact system containing sensor elements, local memory blocks, a microcontroller and a communication interface. The mechanical feasibility and the integration of the circuits inside the cells was proved and cell-internal data were successfully measured and extracted. The temperature measurement accuracy is at 1 K. The battery voltage is measured with an accuracy of 1 mV and a maximum offset of 100 mV.