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South Korean battery technology advancements

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2026-09-07 02:25 UTC → 2026-09-07 04:32 UTC · added removed

South Korean researchers and industry players are advancing battery technologies to improve stability and energy density for large-scale applications. At Chonnam National University, researchers developed a tri-layer composite solid electrolyte (CSE) for lithium-metal batteries. Inspired by mussel adhesive proteins, this design uses a central hard layer to prevent the growth of dangerous lithium dendrites. Laboratory tests showed the cells could maintain over 80% capacity after 1,000 cycles. In a separate development, LG Energy Solution and Seoul National University researchers have focused on Lithium Manganese-Rich (LMR) batteries. By optimizing charging LMR technology is viewed as a cost-effective alternative for electric vehicles because it utilizes manganese instead of expensive cobalt. However, these batteries often face challenges with internal pressure increases and discharging voltage ranges, the team performance loss caused by oxygen oxidation during charging. A breakthrough published in Nature Communications, led by Professor Jongwoo Lim, has addressed these issues regarding of gas generation evolution and capacity degradation. Their testing By adjusting the operating voltage range—lowering the upper charging voltage from 4.6V to 4.3V and extending the lower discharge voltage to 2.0V—the team significantly improved oxygen reversibility. Testing on large-scale cells achieved a specific 40Ah-class LMR large-format cell demonstrated that it could maintain 92.2% of its initial energy after 883 charge-discharge cycles. This progress supports the feasibility of 663Wh/kg, LMR technology for large-scale electric vehicle batteries, with LG Energy Solution aiming for mass production of these manganese-based batteries by 2028.

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  1. 2026-09-07 04:32 UTC South Korean battery technology advancements
  2. 2026-09-07 02:25 UTC South Korean battery technology advancements

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