LG Energy Solution demonstrates sulfur cathode in all-solid-state battery with 1,500 mAh/g capacity
LG Energy Solution and academic partners achieved a high-capacity battery using sulfur as a cathode material in an all-solid-state architecture, published in Nature Communications.
- 1,500 mAh/g
- 1,675 mAh/g
What Happened
LG Energy Solution announced it has successfully demonstrated a high-capacity battery using sulfur as a cathode material through an all-solid-state battery architecture. The research, conducted with the University of Chicago and UC San Diego's Frontier Research Lab, was published in Nature Communications on February 27. By replacing liquid electrolytes with solid electrolytes, the team prevented polysulfide dissolution, a major issue that degrades performance in conventional sulfur batteries.
1,500mAh/g
Verified in both coin-cell and pouch-type configurations, demonstrating practical potential.
“This achievement confirms the potential of sulfur cathodes to expand energy capacity beyond conventional lithium-ion batteries. Through continued collaboration with leading academic institutions, we will further advance next-generation battery technologies by strengthening safety, energy density, and cost competitiveness.”
Why this matters
Sulfur cathodes could enable next-generation batteries with higher energy density and lower cost than conventional lithium-ion batteries, addressing key challenges in electric vehicle range and affordability.
Terms in This Story
- all-solid-state battery
- A battery that uses solid electrolytes instead of liquid ones, improving safety and enabling new materials.
- sulfur cathode
- A battery cathode made from sulfur, which is abundant and has high theoretical energy capacity.
- polysulfide dissolution
- A reaction where sulfur compounds dissolve into the liquid electrolyte, degrading battery performance and cycle life.
- pouch-type cell
- A flexible, flat battery format used in many consumer electronics and electric vehicles.
Summarised from the linked release; details can be imperfect — always verify against the original source.