权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Decoupled Ion-Conduction Mechanism of Protein-based Electrolytes: Simulation and Experimental Studies

蛋白质电解质的解耦离子传导机制：模拟和实验研究

基本信息

批准号：
1929236
负责人：
Weihong (Katie) Zhong
金额：
$ 52.37万
依托单位：
Washington State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-10-01 至 2023-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1929236&HistoricalAwards=false
关键词：
Decoupled Ion Conduction Mechanism Protein

项目摘要

High performance and safe batteries are increasingly demanded in today's energy supply markets. Developing advanced solid electrolytes to replace liquid electrolytes is critical for fulfillment of higher energy density and safer batteries for automotive applications. Conventional solid polymer electrolytes are of great interest owing to their processing ease and cost-effectiveness but suffer from low conductivity and deteriorated mechanical properties. In this project, a naturally occurring protein (soy from soybeans) will be studied as the electrolyte matrix to replace the conventional polymers. The project will study underlying ion conduction mechanisms to understand how both excellent electrochemical and mechanical properties can be simultaneously achieved in protein-based solid electrolytes. This family of materials have not been sufficiently studied to date for the energy storage application. The outcome of this project will be fundamental knowledge of the ion-conduction mechanisms that are critical for generating new battery materials and designing next generation of energy storage devices. This project will also have broader impacts on related fields, such as all-solid-state electrochemical devices and 'green and sustainable' functional biomaterials. The primary goal of the this fundamental research project is to study the decoupled ion-conduction mechanism and fabrication and characterization of high-performance protein-based solid electrolytes through a combination of molecular simulations and experiments. The protein-based solid electrolytes will simultaneously have both excellent electrochemical and mechanical properties. The molecular dynamic simulations will be applied to identify and to quantify different contributions to the ion-conduction. The experimental platform from this project will enable coherent investigation from material fabrication, characterization to performance evaluation of the protein-based polymeric solid electrolytes. The simulations will provide detailed information on molecular interactions and structural reorganizations, which will guide experiments during the fabrication process. The objectives of this project include: (1) investigation of ion-conduction mechanisms through atomistic simulations; (2) study of interactions and structures of protein-ion complex under different fabrication conditions; (3) characterization and evaluation of the properties of the final solid polymeric electrolytes and establishment of structure-property relationships. The intellectual merits of this research are: deepening fundamental understanding of new ion-conduction mechanisms, initiating a new study route for fabrication of advanced solid electrolytes and extending the mechanisms to other natural and synthetic proteins.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在当今的能源供应市场中，对高性能和安全的电池的需求越来越大。开发先进的固体电解质以取代液体电解质对于实现汽车应用的更高能量密度和更安全的电池至关重要。传统的固体聚合物电解质由于其加工容易和成本效益而受到极大关注，但具有低电导率和劣化的机械性能。在该项目中，将研究一种天然蛋白质（大豆中的大豆）作为电解质基质，以取代传统的聚合物。该项目将研究潜在的离子传导机制，以了解如何在基于蛋白质的固体电解质中同时实现优异的电化学和机械性能。迄今为止，该材料族尚未被充分研究用于能量存储应用。该项目的成果将是对产生新电池材料和设计下一代储能设备至关重要的离子传导机制的基础知识。该项目还将对相关领域产生更广泛的影响，如全固态电化学器件和“绿色可持续”功能生物材料。本基础研究项目的主要目标是通过分子模拟和实验相结合的方法，研究解耦离子传导机制以及高性能蛋白质基固体电解质的制备和表征。基于蛋白质的固体电解质将同时具有优异的电化学和机械性能。分子动力学模拟将被应用于识别和量化不同的贡献的离子传导。该项目的实验平台将使蛋白质基聚合物固体电解质从材料制备、表征到性能评价的研究更加连贯。模拟将提供分子相互作用和结构重组的详细信息，这将指导制造过程中的实验。本计画的目标包括：（1）利用原子模拟研究离子传导机制;（2）研究不同制造条件下蛋白质-离子复合物的相互作用及结构;（3）表征及评估最终固体聚合物电解质的性质，并建立结构-性质关系。该研究的智力价值在于：深化了对新离子传导机制的基本理解，开创了先进固体电解质制造的新研究路线，并将该机制扩展到其他天然和合成蛋白质。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。