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What is the definition and function of temperature break point in Equivalent Circuit Battery Block(Simulink)?

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Leon Bu
Leon Bu on 10 Mar 2020
Commented: Leon Bu on 14 Mar 2020
Why must there be more than two temperature breakpoints?


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Accepted Answer

Javier Gazzarri
Javier Gazzarri on 14 Mar 2020
Hello Leon,
Thank you for your question.
The breakpoints indicate the temperature values for which you need to have OCV and internal resistance dependency. The error message is a result of a matrix dimension consistency check that compares the OCV and internal resistance matrix sizes against the T and SOC vectors. If you don't have this information, you can arbitrarily choose a second T value and replicate the OCV and resistance columns, but please keep in mind that your battery behavior will not depend on temperature, which for Li ion is typically a very important effect.
Please let me know if the above was clear enough.
Best regards,

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