South Korean Researchers Develop Enhanced Lithium-Air Battery Catalyst
Researchers at KIST and IAE in South Korea have created a tungsten diselenide-based catalyst that significantly improves lithium-air battery performance, achieving over 550 stable charge-discharge cycles. This innovation could facilitate practical applications for a technology previously confined to experimental phases.
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A new catalyst based on modified tungsten diselenide has been developed by South Korean researchers from KIST and IAE, enhancing lithium-air battery capabilities. The catalyst achieved over 550 stable charge-discharge cycles at a C-rate of 1, surpassing commercial benchmarks.
This advancement employs atomic-scale defect engineering, creating platinum-doped layers with selenium vacancies that activate the normally inert basal plane of the material. This enables effective electrochemical reactions during both charging and discharging phases.
The modified catalyst also retains intrinsic electrical conductivity, essential for optimal performance. The potential scalability of this technology presents challenges, particularly in large-scale production and system integration. Successful commercialization could lead to longer-range electric vehicles and improved grid-scale energy storage solutions.
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