NER: Li-ion Batteries: Hierarchical Architectures for Reducing Diffusion Lengths

NER：锂离子电池：减少扩散长度的分层架构

• 批准号: 0709412
• 负责人: Amy Prieto
• 金额: --
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0709412&HistoricalAwards=false
• 关键词: NER; Li; ion; Batteries; Hierarchical

Novel Architectures for Energy Storage and TransferActive Nanostructures and NanosystemsECCS-0709412PI- Amy L. PrietoColorado State UniversityObjective: The energy needs for society are rapidly outpacing current technology. Nanotechnology will have a profound impact in applications for storing and transporting energy. We propose to integrate our experience in developing new materials with superior physical and electronic properties (Manivannan) and new synthetic methods for the organization of nanoscale materials (Prieto) to fabricate and characterize a novel nanoscale architecture for lithium ion battery technologies. We will fabricate nanowire arrays of novel electrode materials into a new battery architecture. Each anodic nanowire will be coated with a polymer electrolyte, then surrounded by the cathode. Intellectual Merit: The significant advantage of this battery architecture is that the diffusion length for lithium ions between the cathode and anode will be dramatically reduced. While every aspect of lithium ion batteries will benefit from enhanced materials properties, the intellectual merit of this project is in the synergy between the architecture developed by the PI and the optimized cathode materials developed by the co-PI. The ultimate goal of this research is a nanoscale lithium ion battery with faster charge and discharge rates and longer lifetime.Broader Impacts: Dramatic improvement in rechargeable batteries will have broad impacts economically. Furthermore, this is an excellent project for training students because the components are modular - one student is in charge of the cathode, anode, or electrolyte, but then must collaborate to effectively combine them into a functional device. The PI's will continue to include their cutting-edge research in several undergraduate and graduate courses, as well as actively recruit talented students from underrepresented groups.

能量存储和传输的新型结构活性纳米结构和纳米系统ECCS-0709412 PI- Amy L。科罗拉多州立大学目标：社会的能源需求正在迅速超过目前的技术。 纳米技术将对储存和运输能源的应用产生深远的影响。 我们建议整合我们在开发具有上级物理和电子性能的新材料（Manivannan）和组织纳米材料（Prieto）的新合成方法方面的经验，以制造和表征用于锂离子电池技术的新型纳米结构。 我们将把新型电极材料的纳米线阵列制成一种新的电池结构。 每一个阳极纳米线将被涂上一层聚合物电解质，然后被阴极包围。 智力优势：这种电池结构的显著优点是，锂离子在阴极和阳极之间的扩散长度将显著减少。 虽然锂离子电池的各个方面都将受益于增强的材料性能，但该项目的智力价值在于PI开发的架构与co-PI开发的优化阴极材料之间的协同作用。 这项研究的最终目标是一种具有更快的充电和放电速率以及更长寿命的纳米级锂离子电池。更广泛的影响：可充电电池的巨大改进将在经济上产生广泛的影响。 此外，这是一个很好的项目，为培训学生，因为组件是模块化的-一个学生负责阴极，阳极或电解质，但随后必须合作，以有效地将它们联合收割机组合成一个功能设备。 PI将继续在几个本科和研究生课程中包括他们的前沿研究，并积极从代表性不足的群体中招募有才华的学生。