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Data_Point
int64
0
11.8M
Test_Time
float64
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3.1M
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1.55B
1.55B
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Closed-loop optimization of extreme fast charging for batteries

BSEBench status: raw_mirror_pending_validation

This dataset repository is a raw mirror of the TRI Energy & Materials Data / data.matr.io project "Closed-loop optimization of extreme fast charging for batteries using machine learning". The source describes commercial lithium-ion phosphate (LFP)/graphite cells cycled under fast-charging conditions for the associated Nature publication.

Source page: https://data.matr.io/
Project URL: https://data.matr.io/1/projects/5d80e633f405260001c0b60a
DOI: https://doi.org/10.1038/s41586-020-1994-5
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
Source institution/credibility: Stanford University / MIT / Toyota Research Institute
Download date: 2026-05-08

Contents

The files under source_files/ are the official source downloads retrieved from https://data.matr.io/1/api/v1/file/<file_id>/download and organized by source file kind and batch. No scientific data values were transformed.

Actual downloaded source payload:

Kind Files Bytes
MATLAB struct files 5 3975095856
JSON structure ZIP files 5 6855320161
Raw CSV data files 236 11275069907
Metadata CSV files 236 124514
Schedule files 236 5038701
Total source files 718 22110649139

SOURCE_FILE_MANIFEST.json records the official file IDs, source URLs, source API metadata, local paths, and measured local byte counts. SHA256SUMS.txt records checksums for uploaded files.

Provenance Notes

The TRI catalog page lists this dataset with license CC BY 4.0, and the project API page includes the citation and DOI for Attia et al. (2020). The Nature article data-availability section links the study datasets to https://data.matr.io/1/.

Some size values returned by the source API differ from the byte counts of the redirected downloadable assets, especially JSON-structure ZIP archives. This mirror treats the actual downloaded files and SHA-256 checksums as authoritative and records both API-reported and measured sizes in SOURCE_FILE_MANIFEST.json.

Citation

Attia, P. M., Grover, A., Jin, N. et al. Closed-loop optimization of fast-charging protocols for batteries with machine learning. Nature 578, 397-402 (2020). https://doi.org/10.1038/s41586-020-1994-5

License

The source page and API configuration identify the dataset license as Creative Commons Attribution 4.0 International (CC BY 4.0). Users should follow the source license and cite the original work.

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