# Resource for porosity change submodel

**URL:** <https://pybamm.discourse.group/t/resource-for-porosity-change-submodel/173>\
**Category:** General\
**Created:** [15 February 2025 15:24 UTC](https://pybamm.discourse.group/t/resource-for-porosity-change-submodel/173 "2025-02-15T15:24:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![algo-eng](https://avatars.discourse-cdn.com/v4/letter/a/35a633/32.png) [@algo-eng](https://pybamm.discourse.group/u/algo-eng)\
**Post date:** [15 February 2025 15:24 UTC](https://pybamm.discourse.group/t/resource-for-porosity-change-submodel/173/1 "2025-02-15T15:24:58Z")

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1. Research papers for porosity change submodel

2. How PyBaMM is calculating the initial porosity for positive and negative electrode when using SEI porosity change submodel?

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**Author:** ![shubh](https://avatars.discourse-cdn.com/v4/letter/s/e19b73/32.png) [@shubh](https://pybamm.discourse.group/u/shubh)\
**Post date:** [18 February 2025 12:24 UTC](https://pybamm.discourse.group/t/resource-for-porosity-change-submodel/173/2 "2025-02-18T12:24:56Z")

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i am also looking for this research paper.