POSTECH Develops Magneto-Conversion Anode Technology for Safe, High-Capacity Lithium Batteries
POSTECH researchers have developed a hybrid anode technology that significantly enhances energy storage for electric vehicles while mitigating risks of thermal runaway. The innovative 'magneto-conversion' strategy, led by Professor Won Bae Kim, achieves a fourfold increase in energy capacity compared to traditional graphite anodes and maintains over 99% Coulombic efficiency across 300 cycles, addressing critical challenges in lithium-metal batteries. This advancement promotes stable charge-discharge cycling by effectively suppressing dendrite growth.
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A research team at POSTECH has developed a hybrid anode technology that enhances energy storage for electric vehicles while reducing the risk of thermal runaway and explosions. The 'magneto-conversion' strategy, led by Professor Won Bae Kim, utilizes an external magnetic field to regulate lithium-ion transport in ferromagnetic manganese ferrite anodes, effectively suppressing dendrite growth.
This innovation enables a fourfold increase in energy storage capacity compared to conventional graphite anodes, with a Coulombic efficiency above 99% sustained over 300 cycles. The anode's dual mechanism allows lithium to be stored within the oxide matrix and as metallic lithium on the surface, promoting stable charge-discharge cycling without dendrite formation. This technology aims to address critical challenges in lithium-metal batteries, paving the way for improved capacity and cycle life.
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