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Computational homogenization of the electro‐chemically coupled multi‐scale transport of Li‐ions in structural battery electrolytes
Author(s) -
Tu Vinh,
Larsson Fredrik,
Runesson Kenneth,
Jänicke Ralf
Publication year - 2021
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.202000138
Subject(s) - homogenization (climate) , multiphysics , electrolyte , battery (electricity) , finite element method , structural integrity , ion , materials science , computer science , mechanics , chemistry , physics , thermodynamics , engineering , structural engineering , electrode , biodiversity , ecology , power (physics) , organic chemistry , biology
The structural battery electrolyte (SBE) is a crucial component for the structural battery, which is an innovative energy storage device. While the SBE must allow for ion transport, it must also contribute to the structural integrity of the battery. In this contribution, we study the electro‐chemical properties of the SBE using finite element analysis. For the governing equations, we use Ampere's law in terms of a balance equation, and also the mass continuity equation of ions, which in the end results in a fully coupled transient multiphysics problem. Due to the strong heterogeneities in the SBE microstructure, a multi‐scale approach is adopted.