Metal-Sulphur batteries using metallic MoS2 cathodes

使用金属 MoS2 阴极的金属硫电池

• 批准号: 2792856
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2792856
• 关键词: Metal; Sulphur; batteries; using; metallic

My PhD project deals with using phase engineered metallic MoS2 cathodes for metal-sulphur (M-S) batteries. I will build on our group's recent discovery that cathodes made from non-conducting sulphur dispersed on lithiated metallic 1T phase MoS2 nanosheet scaffolds provide excellent performance of Li-S batteries. While the lithiated MoS2 cathodes work exceptionally well, the challenges (safety, lifetime) of lithium metal anode remain. I will therefore seek to study alternatives to pure lithium metal anodes. I will start with replacing lithium metal with sodium to realise Na-S batteries. I will study how lithiated MoS2 cathodes perform in Na-S batteries. Then I will investigate presodiation of 1T phase MoS2 electrodes to compare performance of lithiated vs sodiated electrodes. I will carry detailed characterisation of as-synthesized lithiated and sodiate MoS2, perform detailed electrochemical measurements, analyse data, and make scientific conclusions. Na-S batteries have not been widely studied and therefore provide opportunities for new breakthroughs.

我的博士项目涉及使用相工程金属 MoS2 阴极用于金属硫 (M-S) 电池。我将基于我们小组最近的发现，即由分散在锂化金属 1T 相 MoS2 纳米片支架上的非导电硫制成的阴极可提供优异的锂硫电池性能。虽然锂化 MoS2 阴极工作得非常好，但锂金属阳极的挑战（安全性、寿命）仍然存在。因此，我将寻求研究纯锂金属阳极的替代品。我将从用钠代替锂金属开始实现钠硫电池。我将研究锂化 MoS2 阴极在 Na-S 电池中的表现。然后我将研究 1T 相 MoS2 电极的预钠化，以比较锂电极与钠电极的性能。我将对合成的锂化和钠化 MoS2 进行详细表征，进行详细的电化学测量，分析数据并得出科学结论。 Na-S电池尚未得到广泛研究，因此提供了新突破的机会。