Structure, Composition and Ionic Conduction in Amorphous Lithium Solid Electrolyte

非技术描述：合适的固体电解液已成为发展高性能固态锂离子电池的瓶颈。本项目所获得的知识可以直接指导锂离子电池固体电解质材料的寻找和设计。这样的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液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于提高美国制造业的全球竞争力以及将对环境的负面影响降至最低至关重要。预计该项目还将对几个科技社区产生广泛影响，包括电化学、材料科学、能源储存、材料加工和合成以及固态设备。技术细节：虽然已经有无数关于固体电解质的研究活动，但对非晶相材料缺乏基本的了解。该项目基于电池材料的模拟、合成和评估方面的互补专业知识。这使该团队能够从根本上了解非晶态锂镧钛氧化物的chemistry-processing-structure-property-performance关系，并帮助设计具有高离子导电性和稳定性的更好的固体电解质材料。除了固态电解液对锂离子电池的安全影响外，该项目还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发表演讲，以提高沟通能力；c)通过同行评议的期刊出版物培养学生的写作技能；d)参与活动，通过伍斯特理工学院的Frontiers等计划扩大未被充分代表的群体的参与；e)为工程师、科学家和学生自学创建三个关于固态锂离子电池的电化学、锂离子电池和陶瓷电解液的公开迷你课程；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群体。

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.