E3S Web Conf.
Volume 16, 201711th European Space Power Conference
|Number of page(s)||7|
|Section||Energy Storage: Mission Design and Experience|
|Published online||23 May 2017|
Mars Express Lithium Ion Batteries Performance Analysis
1 ESA/ESTEC Keplerlaan 1, 200 AG Noordwijk, the Netherlands (retired)
2 SCISYS UK, Methuen Park, Chippenham, SN14 0GB United Kingdom
3 LSE Space GmbH, Robert-Bosch-Straße 7, 64293 Darmstadt, Germany
Now more than 12 years in orbit, Mars Express battery telemetry during some of the deepest discharge cycles has been analysed with the help of the ESTEC lithium ion cell model. The best-fitting model parameter sets were then used to predict the energy that is expected to be available before the battery voltage drops below the minimum value that can support the power bus. This allows mission planners to determine what future power profiles could be supported without risk of entering safe mode. It also gives some more insights into the ageing properties of these batteries.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.