I-Corps: A Life-Prolonging Management System for Lithium-Sulfur Battery Packs

I-Corps：锂硫电池组的延长寿命管理系统

• 批准号: 2219940
• 负责人: Hosam Fathy
• 金额: $ 5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-04-01 至 2022-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2219940&HistoricalAwards=false
• 关键词: Corps; Life; Prolonging; Management; System

The broader impact/commercial potential of this I-Corps project is the development of an electronic management system for lithium-sulfur (Li-S) battery packs. This proposed battery management system has the potential to enable the prognostics, health management, and life-prolonging control of Li-S batteries, thereby accelerating the safe commercial deployment of this chemistry. From a commercial perspective, Li-S batteries are appealing because they can store a significant amount of energy per unit weight, which is important for cost-effective electrification in the aerospace, drone, robotics, transportation, and grid industries. The abundance of sulfur in the earth’s crust is also attractive from a sustainability, cost, supply chain perspective, and societal perspective. A battery management system optimized for emerging chemistries, such as the proposed Li-S chemistry, also has the potential to maximize overall system performance, safety, and longevity, leading to both societal benefits from safer energy storage and potential commercial benefits, including improved insurability. This I-Corps project is based on the development of a reconfigurable model-based battery management system for the prognostics, health management, and health-conscious control of lithium-sulfur (Li-S) batteries. Li-S batteries have a theoretical energy density of around 2600 Wh/kg, substantially higher than typical Li-ion batteries. Instead of requiring expensive, rare raw materials such as cobalt, Li-S batteries use sulfur, the most abundant material in the earth’s crust, as their main cathode material. Therefore, from the perspectives of energy density, environmental friendliness, and economics, Li-S technology may offer advantages over lithium-ion (Li-ion) batteries. The project builds on earlier research exploring the development of computer simulation models of Li-S batteries, the fitting and validation of these models versus laboratory test data, and the development of algorithms for estimating the current state of charge in Li-S batteries. Together, these innovations open the door to the potential development of a cohesive battery management system that provides monitoring and control functionalities, including the ability to balance the states of charge of different Li-S cells to prevent over-charge and over-discharge.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.

这个I-Corps项目更广泛的影响/商业潜力是开发锂硫（Li-S）电池组的电子管理系统。这种电池管理系统有可能实现锂硫电池的性能、健康管理和寿命延长控制，从而加速这种化学物质的安全商业部署。从商业角度来看，锂硫电池很有吸引力，因为它们每单位重量可以存储大量的能量，这对于航空航天、无人机、机器人、运输和电网行业的成本效益电气化非常重要。从可持续性、成本、供应链角度和社会角度来看，地壳中丰富的硫也具有吸引力。针对新兴化学物质（如拟议的Li-S化学物质）进行优化的电池管理系统也有可能最大限度地提高整体系统性能、安全性和寿命，从而带来更安全的能量存储带来的社会效益和潜在的商业效益，包括提高可保性。这个I-Corps项目是基于开发一个可重构的基于模型的电池管理系统，用于锂硫（Li-S）电池的性能、健康管理和健康意识控制。锂硫电池的理论能量密度约为2600 Wh/kg，远高于典型的锂离子电池。锂硫电池不需要钴等昂贵、稀有的原材料，而是使用地壳中含量最丰富的硫作为主要的阴极材料。因此，从能量密度、环境友好性和经济性的角度来看，Li-S技术可以提供优于锂离子（Li-ion）电池的优势。该项目建立在早期研究的基础上，探索锂硫电池计算机模拟模型的开发，这些模型与实验室测试数据的拟合和验证，以及估计锂硫电池当前充电状态的算法的开发。这些创新为开发一个具有凝聚力的电池管理系统打开了大门，该系统提供监控和控制功能，包括平衡不同锂硫电池的充电状态以防止过度充电和过度放电的能力。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。