SBIR Phase II: Silicon CS-FET sensors for safety monitoring of electric vehicle lithium-ion battery packs

这项小企业创新研究（SBIR）第二阶段项目的更广泛影响是提高电动汽车（EV）锂离子电池的安全性。电池安全对电动汽车至关重要，现有的温度、电压和电流监测还不够。这个项目提出了一种新的传感器来提高安全性。这项小型企业创新研究（SBIR）二期项目将引入基于硅cs - fet的气体传感器，作为电动汽车电池组的先进安全监测方式。锂离子电池会释放某些气体，这表明存在充电过度和过热等潜在问题。该项目将开发和优化基于硅cs - fet的气体传感器的大批量生产的材料和工艺。关键成果将是具有高灵敏度和选择性，低功耗工作，并通过加速寿命研究证明可靠性的Si cs - fet。项目的成功完成也将显著推进电池监测传感器领域和电池诊断的广泛领域。该奖项反映了美国国家科学基金会的法定使命，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。

The broader impact of this Small Business Innovation Research (SBIR) Phase II project is to enhance lithium-ion battery safety in electric vehicles (EV). Battery safety is critical for EVs, and existing monitoring of temperature, voltage, and current is insufficient. This project advances a new sensor to improve safety. This Small Business Innovation Research (SBIR) Phase II project will introduce Si CS-FET-based gas sensors as an advanced safety monitoring modality for EV battery packs. Lithium-ion cells vent certain gases, indicating potential problems such as overcharging and overheating. This project will develop and optimize materials and processes for high-volume manufacturing of Si CS-FET-based gas sensors. Key outcomes will be Si CS-FETs with high sensitivity and selectivity, low-power operation, and demonstrated reliability through accelerated lifetime studies. Successful project completion will also significantly advance the field of battery monitoring sensors and the broad field of battery diagnostics.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.