Solid-State Electrolytes for Advanced Energy Storage

用于先进储能的固态电解质

• 批准号: 2217072
• 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: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2217072
• 关键词: Solid; State; Electrolytes; Advanced; Energy

Achieving ambitious climate change targets (e.g., Clean Growth and Road to Zero strategies) demands electrochemical energy storage technologies with enhanced safety, stability and energy densities. Solid ion-conducting electrolytes are central to this mission and will facilitate both all-solid-state batteries and advanced chemistries based on a metal anode. However, materials that combine sufficient ionic conductivity with desirable processing and interfacial properties remain elusive. The aims of this project are to: - Design new families of inorganic of solid-state electrolytes both in bulk (electrolyte) and thin film (protective layer) formats - Test these components in traditional and beyond Li-ion cells - Develop computational models for these systems and perform validation using experimental data and measured material properties - Utilise cell performance and modelling results to optimise material and device design Structural properties will be determined using x-ray and neutron diffraction and Raman spectroscopy. Conductivity and stability will be assessed using a combination of electrochemical impedance spectroscopy and cyclic voltammetry, in addition to charge/discharge behaviour. Analysis of cycled devices using, e.g., XPS, AFM, x-ray tomography will give chemical and physical insight at interfaces. Initially we will target crystalline Zintl phases and oxide thin films synthesized using scalable solution-based techniques. These relatively unexplored families with wide chemical tunability will function to test design principles for stable, ion-conducting solids fundamental to advanced energy storage. - Design new families of inorganic of solid-state electrolytes both in bulk (electrolyte) and thin film (protective layer) formats- Test these components in traditional and beyond Li-ion cells- Develop computational models for these systems and perform validation using experimental data and measured material properties- Utilise cell performance and modelling results to optimise material and device designStructural properties will be determined using x-ray and neutron diffraction and Raman spectroscopy. Conductivity and stablility will be assessed using a combination of electrochemical impedance spectroscopy and cyclic voltammetry, in additon to charge/discharge behavior. Analysis of cycled devices using, e.g., XPS, AFM, x-ray tomography will give chemical and physical insight at interfaces. Initially we will target crystalline Zintl phases and oxide thin films synthesized using scalable solution-based techniques. These relatively unexplored families with wide chemical tunability will function to test design principles for stable, ion-conducting solids fundamental to advanced energy storage.

实现雄心勃勃的气候变化目标（例如，清洁增长和零排放战略）要求电化学储能技术具有更高的安全性、稳定性和能量密度。固体离子传导电解质是这项使命的核心，将促进全固态电池和基于金属阳极的先进化学反应。然而，将足够的离子传导性与所需的加工和界面性质结合的联合收割机材料仍然是难以实现的。该项目的目标是：- 设计新的无机固态电解质系列，（电解质）和薄膜（保护层）格式-在传统和超越锂离子电池中测试这些组件-为这些系统开发计算模型，并使用实验数据和测量的材料特性进行验证-利用电池性能和建模结果优化材料和器件设计将使用X射线和中子衍射以及拉曼光谱确定结构特性。除了充电/放电行为外，还将使用电化学阻抗谱和循环伏安法的组合评估电导率和稳定性。分析循环器械，例如，XPS、AFM、X射线断层扫描将提供界面处的化学和物理洞察。最初，我们将针对结晶Zintl相和氧化物薄膜合成使用可扩展的解决方案为基础的技术。这些相对未开发的具有广泛化学可调性的系列将用于测试先进能量存储基础的稳定离子传导固体的设计原则。- 设计新的无机或固态电解质系列，（电解质）和薄膜（保护层）格式-在传统和超越锂离子电池中测试这些组件-为这些系统开发计算模型，并使用实验数据和测量的材料特性进行验证-利用电池性能和建模结果优化材料和设备设计结构特性将使用x-射线和中子衍射以及拉曼光谱。除了充电/放电行为外，还将使用电化学阻抗谱和循环伏安法的组合评估电导率和稳定性。分析循环器械，例如，XPS、AFM、X射线断层扫描将提供界面处的化学和物理洞察。最初，我们将针对结晶Zintl相和氧化物薄膜合成使用可扩展的解决方案为基础的技术。这些相对未开发的具有广泛化学可调性的系列将用于测试先进能量存储基础的稳定离子传导固体的设计原则。