Structure, Composition and Ionic Conduction in Amorphous Lithium Solid Electrolyte

非晶态锂固体电解质的结构、组成和离子传导

• 批准号: 1608398
• 负责人: Yan Wang
• 金额: $ 41.36万
• 依托单位: Worcester Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-15 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1608398&HistoricalAwards=false
• 关键词: Structure; Composition; Ionic; Conduction; Amorphous

NON-TECHNICAL DESCRIPTION: A suitable solid electrolyte has become the bottleneck for developing high-performance solid-state lithium ion batteries. The knowledge gained from this project can give direct guidance to search for and design solid electrolyte materials for lithium ion batteries. Such advancements are crucial for solid-state lithium ion batteries requiring high power and energy density, and further enable the use of a ceramic electrolyte in other applications. The timely design and insertion of high-performance battery materials are critical to the global competitiveness of US manufacturing as well as minimization of the negative impact to the environment. The project is also expected to have widespread impact on several scientific and technological communities including electrochemistry, materials science, energy storage, materials processing and synthesis, and solid-state devices. TECHNICAL DETAILS: While there have been a myriad of research activities into solid electrolytes, fundamental understanding on amorphous phase materials has been lacking. This project is based on the complementary expertise in simulations, syntheses, and evaluation of battery materials. It is enabling the team to gain fundamental understanding of chemistry-processing-structure-property-performance relationships for the amorphous lithium lanthanum titanium oxide, and helping with the design of better solid electrolyte materials with high ionic conductivity and stability. In addition to safety impact of solid-state electrolyte on lithium ion batteries, the project also a) educates students to be professionals mastering experimental approaches with cross-disciplinary knowledge of materials and batteries; b) encourages students to make presentations at professional meetings to improve communication skills; c) fosters students' writing skills through peer reviewed journal publications; d) participates in activities to broaden the participation of underrepresented groups through programs such as Frontiers at Worcester Polytechnic Institute; e) creates three open mini-courses on electrochemistry, lithium ion batteries, and ceramic electrolyte for solid-state lithium ion batteries for engineers, scientists, and student self-learners; and f) strengthens the K-12 outreach program with an emphasis on training women and minorities in collaboration with Worcester Technical High School.

非技术描述：合适的固体电解质已成为开发高性能固态锂离子电池的瓶颈。本课题的研究成果对锂离子电池固体电解质材料的研究和设计具有直接的指导意义。这些进步对于需要高功率和能量密度的固态锂离子电池至关重要，并进一步使陶瓷电解质能够在其他应用中使用。及时设计和插入高性能电池材料对美国制造业的全球竞争力以及最大限度地减少对环境的负面影响至关重要。预计该项目还将对电化学、材料科学、储能、材料加工和合成以及固态器件等多个科技领域产生广泛影响。技术规格：虽然已经有无数的研究活动，固体电解质，非晶相材料的基本理解一直缺乏。该项目基于电池材料模拟，合成和评估方面的互补专业知识。它使团队能够对非晶锂镧钛氧化物的化学-加工-结构-性质-性能关系有基本的了解，并有助于设计具有高离子电导率和稳定性的更好的固体电解质材料。除了固态电解质对锂离子电池安全性的影响外，该项目还a）教育学生成为掌握材料和电池跨学科知识的实验方法的专业人员; B）鼓励学生在专业会议上进行演讲，以提高沟通技巧; c）通过同行评审的期刊出版物培养学生的写作能力; d）通过伍斯特理工学院的Frontiers等项目参与活动，以扩大代表性不足的群体的参与; e）为工程师，科学家和学生自学者创建三门关于电化学，锂离子电池和固态锂离子电池陶瓷电解质的开放式迷你课程;和f）加强K-12外联方案，重点是与伍斯特技术高中合作培训妇女和少数民族。