04/01/2025, 08:03 AM UTC
发现锂离子电池的新降解机制New Degradation Mechanism of Lithium-ion Batteries Discovered
<p>➀ 由浦项工科大学（POSTECH）的Hong Ji-hyun教授研究团队与KIST研究员和成均馆大学教授Kim Jong-soon合作，发现了电池寿命缩短的隐藏原因。</p><p>➁ 研究团队发现，在电池放电过程中会发生准转换反应，导致正极材料表面的氧气逸出并形成氧化锂，与电解液反应产生气体，从而降低电池性能。</p><p>➂ 该研究得到了多个韩国技术开发项目的支持，并作为封面论文发表在《先进能源材料》期刊上。</p><p>➀ A hidden cause of battery life reduction has been discovered by a research team led by Professor Hong Ji-hyun at POSTECH, in collaboration with researchers from KIST and Professor Kim Jong-soon from Sungkyunkwan University.</p><p>➁ The team found that a quasi-conversion reaction occurs during battery discharge, causing oxygen from the cathode material to escape and form lithium oxide, which reacts with the electrolyte to produce gas and degrade battery performance.</p><p>➂ The research, supported by various Korean technology development programs, was published as a cover paper in the journal 'Advanced Energy Materials.'</p>
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