Investigating a New Paradigm For Electrical Energy Storage Devices Capable of High Power and Energy Densities

研究具有高功率和能量密度的电能存储设备的新范例

• 批准号: 2723523
• 金额: --
• 依托单位: University College London
• 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-2723523
• 关键词: Investigating; New; Paradigm; Electrical; Energy

Firstly, we will build upon recent breakthrough experimental work [1] on high-performance graphene laminate supercapacitors to optimise separately on 1) energy density and 2) devising cost-effective methods to scale up production from sustainable precursors. In parallel, we will perform the first experimental proof-of-concept work to validate our recent theoretical proposal for a new paradigm of EES - the pseudocapacitive battery - [2] that uses a novel-pseudocapacitive storage mechanism, taking advantage of the novel, expanded layered materials we can produce [3]. This proposed pseudocapacitive Faradic energy storage mechanism mimics the charging properties of a conventional supercapacitor, providing an "ideal" pseudocapacitive response. The charge storage through "quantised capacitance" is an observable Faradaic mechanism in nanoparticles arising from electronelectron interactions, which has been theoretically proved to satisfy the required criteria for ideal pseudocapacitance. In theory, this innovative charge scheme leads to a developed capacitive, yielding the combination of high power density and energy density long sought by the field [2]. The student will be trained in a range of complementary analytical techniques for testing electrochemical performance and materials characterisation at the Physics Department and Electrochemical Innovation Laboratory (UCL Chemical Engineering) and PC labs at QMUL for device manufacture and electrochemical characterisation. During the first three months, the student will be trained in a range of complementary characterisation techniques, including diffraction, XPS, Scanning Probe and Advanced TEM methods. Additionally, the student will receive training in a range of topics that will support their research progress, including science communication, research ethics, career development planning and data science.

首先，我们将基于最近关于高性能石墨烯层压超级电容器的突破性实验工作[1]，分别优化 1) 能量密度和 2) 设计具有成本效益的方法来扩大可持续前体的生产规模。与此同时，我们将进行第一个实验概念验证工作，以验证我们最近关于 EES 新范式的理论建议 - 赝电容电池 - [2]，该电池使用新颖的赝电容存储机制，利用新颖的、我们可以生产膨胀层状材料[3]。这种提出的赝电容法拉第能量存储机制模仿了传统超级电容器的充电特性，提供了“理想的”赝电容响应。通过“量子化电容”的电荷存储是由电子-电子相互作用产生的纳米颗粒中可观察到的法拉第机制，理论上已证明其满足理想赝电容所需的标准。理论上，这种创新的充电方案会产生发达的电容性，从而产生该领域长期以来寻求的高功率密度和能量密度的组合[2]。学生将在物理系和电化学创新实验室（伦敦大学学院化学工程）以及 QMUL 的 PC 实验室接受一系列补充分析技术的培训，用于测试电化学性能和材料表征，以进行设备制造和电化学表征。在前三个月，学生将接受一系列补充表征技术的培训，包括衍射、XPS、扫描探针和高级 TEM 方法。此外，学生还将接受一系列支持其研究进展的主题培训，包括科学传播、研究伦理、职业发展规划和数据科学。