Welcome to Five-Star Battery Data
=================================

Welcome to the **Five-Star Battery Data** MOOC — a self-paced course designed to help researchers, developers, and data stewards make battery data more open, structured, and machine-actionable.

Battery data is often underutilized due to poor accessibility, lack of structure, and missing metadata. This course teaches you how to apply modern data practices — inspired by the `Semantic Web <https://en.wikipedia.org/wiki/Semantic_Web>`_, `FAIR principles <https://en.wikipedia.org/wiki/FAIR_data>`_, and `Tim Berners-Lee's five stars of linked data <https://www.w3.org/2011/gld/wiki/5_Star_Linked_Data>`_ — to transform raw measurements into reusable research assets.

The course follows the **Five-Star Battery Data** framework:

1. ⭐ Publish your data on the web with a permissive license  
2. ⭐⭐ Use structured data (e.g., tables, JSON)  
3. ⭐⭐⭐ Use open formats (e.g., `.csv`, `.json`, `.parquet`)  
4. ⭐⭐⭐⭐ Describe your data with ontologies  
5. ⭐⭐⭐⭐⭐ Link your data to other relevant resources  

Get started below:

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        :link: introduction/introduction.html
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        :octicon:`rocket;1em;sd-text-success`  Start the Course
        ^^^^^^^^^^^^^^^^^^^^^
        What is Five-Star Data, and why does it matter?

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    .. grid-item-card::
        :link: quiz/quiz.html
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        :octicon:`light-bulb;1em;sd-text-muted`  Take the Quiz
        ^^^^^^^^
        Recap what you've learned and get ready to apply it.


.. toctree::
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   :maxdepth: 1

   introduction/introduction
   applications/applications
   discussion/discussion
   quiz/quiz

.. toctree::
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   :maxdepth: 1
   :titlesonly:

   star-1/star-1-notebook
   star-2/star-2-notebook
   star-3/star-3-notebook
   star-4/star-4-notebook
   star-5/star-5-notebook
   summary/summary

Funding acknowledgement
-----------------------

.. image:: _static/flag_of_europe.png
   :alt: Flag of Europe
   :width: 120px
   :align: left

This work has received funding from the European Union and the `Battery 2030+ <https://battery2030.eu/>`_ initiative under grant agreement No. 101104022. The views and opinions expressed are those of the authors only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.