# Current dependent particle radius

**URL:** <https://pybamm.discourse.group/t/current-dependent-particle-radius/62>\
**Category:** Parameters\
**Created:** [11 December 2024 06:36 UTC](https://pybamm.discourse.group/t/current-dependent-particle-radius/62 "2024-12-11T06:36:53Z")\
**Posts on this page:** 3\
**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:** [11 December 2024 06:36 UTC](https://pybamm.discourse.group/t/current-dependent-particle-radius/62/1 "2024-12-11T06:36:53Z")

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Is there any example python function for current dependent particle radius?

What will be the input to the function?

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**Author:** ![brosaplanella](https://yyz2.discourse-cdn.com/free1/user_avatar/pybamm.discourse.group/brosaplanella/32/6_2.png) [@brosaplanella](https://pybamm.discourse.group/u/brosaplanella)\
**Post date:** [7 February 2025 14:44 UTC](https://pybamm.discourse.group/t/current-dependent-particle-radius/62/2 "2025-02-07T14:44:10Z")

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Not directly. The swelling models could potentially replicate a similar behaviour, but there is no model allowing for direct dependency of the radius on current.

If you have a formulation of such model, you could implement it as a standalone model.

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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:** [9 February 2025 16:50 UTC](https://pybamm.discourse.group/t/current-dependent-particle-radius/62/3 "2025-02-09T16:50:40Z")

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Please refer Prada2012 paper