Exploring inductive effects in superionic conductors

探索超离子导体中的感应效应

• 批准号: 498761047
• 负责人: Professor Dr. Wolfgang Zeier
• 金额: --
• 依托单位: Institut für Anorganische und Analytische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/498761047?language=en
• 关键词: Exploring; inductive; effects; superionic; conductors

Superionic conductors are materials that provide fast ion conduction similar to liquid electrolytes, and are currently investigated for the use in solid-state batteries. The typical investigation in solid ionic conductors focusses on substitutions that affect the structure of materials such as increasing the width of diffusion pathways or increasing the charge carrier density. However, not much is known how much the strength of bonding interactions affects the ionic transport. Recently, the idea that inductive effects affect ionic transport. In this rather intuitive hypothesis, the electronegativity of a central cation is thought to affect the average charge density of a polyanionic group, which in turn affects the electrostatic bonding interaction between the anionic framework and the mobile cations. Recent work has corroborated this idea of a solid electrolyte inductive and this proposal is based on exploring if a solid electrolyte inductive effect is indeed an influence found in a variety of solid ion conductors, or if it is just used to explain unexpected trends in materials. This work aims at a better fundamental understanding of how bonding influences affect electrostatic interactions and with it the ionic transport in solid ionic conductors. As a final approach, the work will evaluate if inductive effects can deliver a new promising design principle for ionically conducting solids.

超电子导体是提供类似于液态电解质的快速离子传导的材料，目前已研究用于固态电池。固体离子导体中的典型研究集中在影响材料结构（例如增加扩散途径宽度或增加电荷载体密度的宽度）的取代。但是，尚不清楚粘结相互作用的强度影响离子运输的强度。最近，诱导效应影响离子运输的想法。在这一相当直观的假设中，中央阳离子的电负性被认为会影响多支支基团的平均电荷密度，这又影响了阴离子框架与移动阳离子之间的静电键相互作用。最近的工作证实了这种固体电解质感应的想法，该建议基于探索固体电解质电感效应是否确实是在各种固体离子导体中发现的影响，还是仅用于解释材料的意外趋势。这项工作旨在更好地理解粘结如何影响静电相互作用及其在固体离子导体中的离子运输。作为最终方法，该工作将评估归纳效应是否可以为离子进行固体提供新的有希望的设计原理。