Page 57 - European Energy Innovation - Winter 2014
P. 57
Winter 2014 European Energy Innovation 57

COMMUNICATION

AS8506 BMS IC demo board for autonomous cell The demo device features AppliedSensors’ iAQ-engine
supervising and active or passive cell balancing function as gas sensor module which can be operated with an
external power supply or 9V battery. Changes of VOC
and hydrogen concentrations are indicated by LEDs and
can be logged via UBS or memory card. A BMS can be
interfaced via I/O pins and I2C bus.

The excellent functionality of this approaches delivering enhanced While the gas sensor allows
BMS monitoring and balancing safety functions at lowered cost detection of very low levels of
concept has been demonstrated compared to existing solutions. volatile organic compounds as
in this project in combination with emitted in thermal overruns of
Li-Ion batteries as well as with Test with abuse of Li-Ion cells battery packs, the new spark
ultra capacitor power packs. have shown showed that it is detector concept enables
possible to detect gas emissions general safety functions by flame
Tests with newly developed a sufficient time span before a detection from all hazardous
HV-test equipment have proven thermal runaway occurs. The events in a FEV.
test isolation protections in gas sensor can detect a rise in
the environment of several VOC concentration even before Finally the development of new
100’s V as present in FEVs. So a bloated cell fully opens. The actuators as low cost power
the demonstration of a newly measurements showed that this antifuse together with the
developed precision HV-attenuator time span is, dependent on cell new energy management HW
enable also integrated solutions for temperature and cell current, in (BMS IC) and SW from FhG IISB
accurate voltage measurements. the range of tens of seconds to enables dynamic reconfigurable
several minutes. This time span topologies for the energy storage
ESTRELIA also developed a is more than sufficient to take unit, thus still enabling the
new safety sensors which are measures to avoid a thermal functionality of the FEV despite
based on silicon based MEMS runaway of the battery. single failing cells. l

Key Partners FRANCE Project coordinator
VALEO EQUIPEMENTS ELECTRIQUES MOTEUR SAS FRANCE
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ITALIA Ewald Wachmann
ACTIVE TECHNOLOGIES SRL FRANCE ams AG
E4V SAS AUSTRIA Tobelbader Strasse 30
ABR BATTERY RESEARCH LABORATORY GMBH FRANCE A-8141 Unterpremstaetten
CORNING SAS Austria
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN GERMANY Telephone: +43/3136/500-0
FORSCHUNG E.V, GERMANY Email: ewald.wachmann@ams.com
APPLIEDSENSOR GMBH Web: www.estrelia.eu

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