Lithium Batteries for Electric Vehicles

电动汽车锂电池

• 批准号: 2751469
• 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: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2751469
• 关键词: Lithium; Batteries; Electric; Vehicles

The study will involve the use of optical microscopy, NMR spectroscopy, and crystallographic and electrochemical studies of the lithium-ion cathode material lithium nickel oxide for high energy and high power lithium batteries for electric vehicles. The specific questions to be addressed include the nature of the series of phase transitions that occur on delithation and the role that cation and electronic ordering has on these phase transitions. Local structural methods such as X-ray absorption spectroscopy and NMR spectroscopy will be used to study the Jahn-Teller ordering in these d-7 materials as a function of temperature. In the longer term, the effect of doping such as W on phase transitions and Jahn-Teller ordering will be explored, as will possible degradation modes.

该研究将涉及使用光学显微镜、核磁共振波谱以及对用于电动汽车高能和高功率锂电池的锂离子正极材料镍酸锂进行晶体学和电化学研究。要解决的具体问题包括脱锂时发生的一系列相变的性质以及阳离子和电子排序对这些相变的作用。 X 射线吸收光谱和 NMR 光谱等局部结构方法将用于研究这些 d-7 材料中的 Jahn-Teller 有序度随温度的变化。从长远来看，我们将探索 W 等掺杂对相变和 Jahn-Teller 排序的影响，以及可能的退化模式。