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Energy Storage

Lanxess to develop iron oxides for lithium iron phosphate

by Matt Blois
January 28, 2024 | A version of this story appeared in Volume 102, Issue 3
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What appears to be a petri dish containing mustard-yellow powder.
Credit: Lanxess
Lanxess hopes to use its iron oxide as a raw material for batteries.

The German chemical maker Lanxess is working with the battery materials firm IBU-tec to develop iron oxides for production of lithium iron phosphate (LFP), a cheap cathode material. Many Chinese firms make LFP using iron sulfate, a by-product of the titanium dioxide industry. Lanxess makes iron oxides for other applications, such as pigments. The company says developing battery-grade iron oxides will create a stable European supply chain for production of LFP as demand increases.

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