Wednesday, July 29, 2026

Ferric chloride steers lithium away from dendrites to improve safety of lithium-metal batteries

Good news!

I tried Google AI using multiple prompts to retrieve the underlying research paper. It completely failed!

"Ferric chloride (FeCl₃) could help solve one of the biggest safety challenges facing solid-state lithium-metal batteries.
Researchers found that adding the widely used industrial chemical to polyethylene oxide-based electrolytes promotes the growth of lithium as spherical particles rather than needle-like dendrites.
Surprisingly, the additive also softens the electrolyte, challenging the long-held view that strong electrolytes are essential for suppressing dendrite growth during battery cycling. ..."

Ferric chloride steers lithium away from dendrites to improve safety of lithium-metal batteries | Research | Chemistry World (behind paywall) "Common chemical additive challenges the assumption that stiffer electrolytes are needed to suppress dendrites"

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