Air-stable Li₅FeO₄ additive enabled by carbon coating for energy-dense lithium-ion batteries

Source data are provided in this paper.Version history note, v2:1. Added explanatory notes to improve the readability of the dataset.2. Corrected superscripts, subscripts, and units in the figure labels to ensure better correspondence with the main text.3. Added table borders for improved clarity.4. Completed and refined certain data entries to ensure better correspondence with the figures in the main text.5. Updated dataset title to match the final published article.