What is DEFACTO?

DEFACTO aims to develop a multiphysic and multiscale modelling tool to improve the understanding of cell material behaviour and cell manufacturing process and to reduce the time and economic resources for the market uptake of cell innovations, facilitating new high capacity and high voltage Li-ion cell generation 3b batteries.


1 – Generate an integrated software tool to describe cell behaviour with maximum accuracy and at reasonable computing costs.

2 – Optimize the design of a cell by including all relevant design variables and analyzing different physical domains.

3 – Reduce the number of experiments by a factor of 3 in the cell development phase.

4 – Contribute to the standardization of measurement procedures.

5 – Creation of New Market opportunities and improvement of industry competitiveness.




DEFACTO will ensure maximum accuracy in cell modeling at reasonable computing costs.
DEFACTO will lower the development time and cost for battery cell by 30%.
DEFACTO will decrease the number of experiments dedicated for cell design and cell manufacturing optimisation.
DEFACTO will reduce battery R&I cost by 20%.
DEFACTO will extend the battery lifetime and reduce the environmental impacts caused per battery produced.


“DEFACTO (…) will accelerate cell development and boost the market uptake of next generation of batteries, positioning Europe as the leader of this sector.” – Interview with CIDETEC Energy Storage.

Elixabete Ayerbe, from CIDETEC Energy Storage, speaks on this interview about their main role in the DEFACTO Project, their expectations and...

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DEFACTO will (…) will allow the battery market in Europe to grow and strengthen – Interview with Leclanché SA

The R&D department of Leclanché SA speaks on this interview about their main role in the DEFACTO Project, the...

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DEFACTO joins 3beLiEVe Project meeting to look for synergies

The DEFACTO Project coordinator CIDETEC joined the General Assembly meeting of the 3beLiEVe Project on Wednesday, February 17th. During...

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