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2w ago

KAIST–LG Energy Team Reports Lithium‑Metal Battery Charging in 12 Minutes With 800 km Range Claims

A Nature Energy study attributes the lab result to a cohesion‑inhibiting liquid electrolyte whose weakly binding anion suppresses dendrite formation.

The extended range reduces drivers’ range anxiety and enables long-distance travel. (Representational image)
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LG, KAIST develop fast-charging technology for lithium metal batteries - 1
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Overview

  • The Frontier Research Laboratory collaboration between KAIST and LG Energy Solution reports a lithium‑metal cell that achieves an 800 km single‑charge range and a 12‑minute fast charge in laboratory testing.
  • Researchers identify non‑uniform interfacial cohesion on lithium metal as the root cause of dendrite growth during rapid charging.
  • The team designed a new liquid electrolyte using an anion with weak Li+ binding to minimize interface non‑uniformity and curb dendrites.
  • The study cites a lifespan equivalent of more than 300,000 km while maintaining high energy density compared with conventional lithium‑ion cells.
  • The findings, led by first author Hyeokjin Kwon, were published in Nature Energy (DOI: 10.1038/s41560-025-01838-1) following a four‑year KAIST–LG Energy Solution effort.