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Power antifuse device to bypass or turn-off battery cells in safety-critical and fail-operational systems

: Lorentz, V.R.H.; Waller, R.; Waldhör, S.; Wenger, M.; Gepp, M.; Schwarz, R.; Koffel, S.; Wacker, S.; Akdere, M.; Giegerich, M.; März, M.

Postprint urn:nbn:de:0011-n-4917657 (884 KByte PDF)
MD5 Fingerprint: 12aa9de1ca8bdf204267dc6c89c66033
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Erstellt am: 8.5.2018

Institute of Electrical and Electronics Engineers -IEEE-; IEEE Industrial Electronics Society -IES-:
IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018. Proceedings : 30 Jan.-2 Feb. 2018, Hamilton, New Zealand
Piscataway, NJ: IEEE, 2018
ISBN: 978-1-5090-4974-5
ISBN: 978-1-5090-4975-2
International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) <2018, Hamilton>
European Commission EC
H2020; 737469; AutoDrive
Advancing fail-aware, fail-safe, and fail-operational electronic components, systems, and architectures for fully automated driving to make future mobility safer, affordable, and end-user acceptable
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IISB ()
antifuse device; power electronics; lithium-ion battery; fail-operational; safety; redundant architecture; smart battery cell; shutdown battery cell; bypass battery cell; aircraft; Railway; ship and road vehicle

This paper presents a new power electronic device, named power antifuse, providing an irreversible bypassing function for the current after having been ignited by an external electrical signal. The antifuse is a scalable power electronic device of 1 cm2 of active area. A pristine antifuse device provides an electric resistance of more than 100 mega-ohms between the terminals. After having been activated, the same antifuse device becomes a bidirectional bypass element offering less than 20 micro-ohms of resistance to the electric current. The activation time corresponding to the delay between the reception of the electrical trigger signal and the full conduction of the antifuse is less than 10 ms even at environment temperatures below -40°C. This paper shows how the integration of antifuse devices in battery cells can be used to bypass and turn-off lithium-ion battery cells thus improving the safety and availability of battery systems used in transport applications like aircraft, railways, ship and road vehicles. The characteristics of the proposed antifuse device make it also an ideal power electronic device for bypassing faulty series connected sub-systems used in high-availability applications or fail-operational redundant systems.