Composite porosity

[DrSOKane]

Description

Modified reaction_driven_porosity.py so that porosity change still works for composite electrodes

Fixes # (issue)

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #) - note reverse order of PR #s. If necessary, also add to the list of breaking changes.

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.66%. Comparing base (a7253b8) to head (07c6ff6).
Report is 141 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4417      +/-   ##
===========================================
- Coverage    99.22%   98.66%   -0.56%     
===========================================
  Files          303      303              
  Lines        23070    23225     +155     
===========================================
+ Hits         22891    22915      +24     
- Misses         179      310     +131     

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[brosaplanella]

Hi Simon! The PR looks nice, just the tests need addressing. Note that once the unit tests are updated to increase coverage, it will also have the same parameter issues as the integration tests.

[DrSOKane]

Hi Simon! The PR looks nice, just the tests need addressing. Note that once the unit tests are updated to increase coverage, it will also have the same parameter issues as the integration tests.

That's odd. My working example ran just fine 10 days ago before I went on holiday, but it's now throwing the same parameter error as the automated tests. Was there a recent change to how phase parameters are handled?

[valentinsulzer]

@parkec3 has also been working on some changes to make composite electrodes compatible with more cases

[parkec3]

It looks like the degradation parameters need to be updated to be defined by phase. I'm finishing up work getting the LAM submodel compatible with composite electrodes. I had to make a custom parameter set from Chen2020 composite and Ai2020 for my own local testing. The default parameter set doesn't have those defined.

[DrSOKane]

The SEI parameters are defined by phase, but not by domain, which was the underlying cause of the bug. I rewrote the code with if statements to cover three possibilities:

• Both electrodes have only one phase, in which case phase_name and pref are empty strings
• domain has only one phase, in which case phase_name is empty but pref = "Primary: "
• domain has more than one phase, in which case phase_name and pref are different for each phase

There is still a potential error if the electrode with SEI has one phase and the other has two. This can be fixed by giving all the SEI parameter domains, but that would be a separate PR...

[DrSOKane]

UPDATE: I've simply set it so that L_sei_0 is zero if there is no SEI on that domain. Much more elegant and means the code will run in some edge cases that would have caused an error before.

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[rtimms]

@aabills might be good for you to review this one since you've been looking at the composite code a lot recently

[aabills]

@aabills might be good for you to review this one since you've been looking at the composite code a lot recently

I'm going to review this after a meeting this morning