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The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron(II) disulfide). Pyrite is considered the most common of the sulfide minerals.
Iron sulfide based positive electrode active material powder
The present invention concerns a positive electrode active material powder comprising iron disulfide, a sulfur source, a carbon source and a lithium based argyrodite compound and having a ratio A / B, wherein 0.05 < A / B < 0.40, with A representing the crystallite size of the lithium based argyrodite compound and B representing the crystallite size of iron disulfide.
Owner:UMICORE(BE) +1