Microsystems based stable, reliable, and real-time sensor array for in-situ thermal monitoring of lithium-ion batteries

基于微系统的稳定、可靠、实时的传感器阵列，用于锂离子电池的原位热监测

• 批准号: 571845-2021
• 负责人: Ahamed, MohammedMJ
• 金额: $ 1.82万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=760461
• 关键词: Microsystems; based; stable; reliable; real

Over the next decade, the electrification of automobiles is expected to rise dramatically as automakers pivot toward electrification. Rechargeable Lithium-ion (Li-ion) batteries are considered the electric heart within the electrification sector. It is essential that Li-ion batteries operate reliably and safely. One of the fundamental requirements for safe and reliable operation is real-time temperature monitoring of the battery. The heat generated inside the battery must be controlled to improve its lifecycle, reliability, and safety. If it is overheated, chemical energy quickly converts to thermal energy, leading to overheating, and then a thermal runway may cause failure, fire, or even explosion. An effective battery management system (BMS) ensures proper thermal management, but it relies on accurate temperature sensing during all operating states. The current sensing technology focuses on monitoring temperature using thermocouple sensors placed at discrete and strategic locations along battery surfaces, which lack the required spatial resolution to provide a complete thermal map. In situ temperature sensing inside each cell is therefore of paramount importance for proper BMS. In situ sensors require miniature, flexible and highly stable temperature sensors that can be placed inside the battery pack and should be compatible with environments inside the cells. Such a technological solution is highly sought after to reduce failure and improve safety. This catalyst project is to initiate first stage of collaboration between Canadian microsensor researchers and an international battery thermal research group at India will test the viability of a robust, in situ, and microsensors for Li-ion battery thermal system. It is expected to create a pivotal shift in the thermal management of EV batteries, thus creating opportunities for long-term collaboration, grants, funded projects and many economic opportunities in battery technology. The outcome of this research will increase Canada's leadership and competitiveness and thus contribute to shaping Canada's future in the battery and EV sectors.

在接下来的十年中，随着汽车制造商朝电气化的旋转，汽车的电气化有望急剧上升。可充电锂离子（锂离子）电池被认为是电气化部门内的电力心脏。锂离子电池必须可靠，安全地运行。安全可靠操作的基本要求之一是电池的实时温度监测。必须控制电池内部产生的热量，以改善其生命周期，可靠性和安全性。如果过热，化学能可以迅速转化为热能，导致过热，然后热跑道可能会导致故障，火灾甚至爆炸。有效的电池管理系统（BMS）可确保适当的热管理，但它依赖于所有操作状态下的准确温度感应。当前的传感技术着重于使用放置在电池表面的离散和战略位置的热电偶传感器监测温度，这些传感器缺乏所需的空间分辨率来提供完整的热图。因此，对于适当的BMS，每个单元内的原位温度传感至关重要。原位传感器需要微型，柔性且高度稳定的温度传感器，这些传感器可以放置在电池组内，并且应与单元内的环境兼容。这种技术解决方案受到了极大的追捧，以减少故障并提高安全性。该催化剂项目是在加拿大微型传感器研究人员和印度的国际电池热研究小组之间启动合作的第一阶段，将测试稳健的原位和微传感器的生存能力，以及用于锂离子电池热系统的微传感器。预计它将在电动汽车电池的热管理中产生关键的转变，从而为长期协作，赠款，资助项目和电池技术的许多经济机会创造机会。这项研究的结果将提高加拿大的领导能力和竞争力，从而有助于塑造加拿大在电池和电动汽车领域的未来。