Science, Space and Technology News 2024
Researchers at POSTECH, led by Professor Kyu-Young Park, have developed a new single-crystal synthesis technology for nickel-based cathode materials in electric vehicle batteries, demonstrating significantly enhanced lifespan and durability. Their work, published in, highlights the critical temperature needed for synthesizing robust single crystals, contributing to more durable and efficient batteries.
Schematic of the microstructure evolution of high-nickel cathode materials with synthesis temperature and a strategy for synthesizing single crystals at a critical temperature. Credit: POSTECH The researchers discovered that conventional polycrystalline materials synthesized below a certain critical temperature are prone to degradation with prolonged use in secondary batteries. However, when synthesized above this critical temperature, high-quality single crystals can be easily produced, leading to materials with superior longevity.
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