The supplied records are unchanged structure/formation-energy pairs selected by chemical element membership from the local matbench_mp_e_form archive. Each identifier is the original dataset index, not a Materials Project identifier. Selection retains every record in the specified chemical system, including metastable polymorphs and elemental structures.

Formation energies are in eV per atom, on the supplied elemental reference. A structure's cell energy on that reference is its formation energy multiplied by the atom count including site occupancies. A reduced formula is not necessarily the stored unit cell. All elemental reference minima needed for these tasks are present in the original data; no synthetic zero-energy entries have been added.

Treat the energy labels as the common frozen energy model. Do not reapply DFT correction schemes or import another reference dataset. The specified calculation is zero-temperature equilibrium within this archive. It does not establish the completeness of the real phase universe, finite-temperature behavior, kinetic barriers, interface morphology, conductivity or measured cell performance.

structures.json retains the source structure dictionaries, counts, dataset indices and energies. phase_energies.csv is a convenience table derived from those same records. crystal_structures.zip provides CIF exports for crystal software; the JSON is the authoritative representation if an export convention differs. No outcome labels, reference reactions or answer files are included in these inputs.

The work commission is a constructed battery-review scenario using real existing calculated records. It is not represented as an actual customer incident or an experimental measurement campaign. No additional scientific data were obtained for these tasks.
