Unit cells for multiphysics modelling of structural battery composites
Paper i proceeding, 2019

To predict the multifunctional performance of structural battery composites, multiple physical phenomena need to be studied simultaneously. Hence, multiphysics models are needed to evaluate the complete performance of this composite material. In this study the coupled analysis for multiphysics modelling of structural battery composites is presented and modelling strategies and unit cell designs are discussed with respect to the different physical models. Furthermore, FE-models are setup in the commercial Finite Element (FE) software COMSOL to study if existing physics-based modelling techniques and homogenization schemes for conventional lithium ion batteries can be used to describe the electrochemical behaviour of structural battery composites. To predict the microscopic behaviour, the local variation of the mass and charge concentrations need to be accounted for. Hence, refined models with appropriate boundary conditions are needed to capture the microscopic conditions inside the material. The numerical results demonstrate that conventional physics-based 1D battery models and homogenization schemes based on porous media theory can be used to predict the macroscopic electrical behaviour of the fibrous structural battery. For future work electrochemical experiments on battery cell level are planned to validate the numerical results.

Multifunctional composites

Carbon fibre reinforced plastics

Finite Element Analysis (FEA)

Energy storage

Multiphysics modelling

Författare

David Carlstedt

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Johanna Xu

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Kenneth Runesson

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Fredrik Larsson

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Leif Asp

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

22nd International Conference on Composite Materials
Melbourne, Australia,

Skadetålighet hos strukturella batterier

Amerikanska flygvapnets kontor för strategisk forskning (AFOSR), 2017-09-30 -- 2020-09-29.

SORCERER

Europeiska kommissionen (Horisont 2020), 2017-02-01 -- 2020-02-28.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Transport

Energi

Materialvetenskap

Ämneskategorier

Rymd- och flygteknik

Teknisk mekanik

Kompositmaterial och -teknik

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Mer information

Senast uppdaterat

2019-09-13