Battery thermal management for high rate applications

高倍率应用的电池热管理

• 批准号: 543606-2019
• 负责人: Swan, Lukas
• 金额: $ 1.71万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=679488
• 关键词: Battery; thermal; management; rate; applications

New and proposed electric vehicles (EV) will fast charge at very high rates while briefly stopped on long distance travels. This places significant stress on the existing electrical distribution grid. Instead of adding new "poles and wires", charging stations can be "battery-backed" by adding stationary batteries. eCamion is a Canadian developer and manufacturer of battery energy storage systems. They have deployed these throughout Ontario and are presently contracted to deliver new higher power systems. eCamion's market is evolving to faster charging rates and their present battery cooling system is no longer sufficient to maintain uniform cool temperature during high rate operation. There is a need for new thermal management techniques to keep such stationary batteries cool while operating at very high rates (4C+). Whereas the EV might take hours to discharge, the battery backed storage at the charge station must discharge in minutes, and potentially to multiple EVs simultaneously. In this research project, new and novel battery thermal conditioning systems will be explored to determine their performance enhancement while remaining within the original footprint of the charge station. The project has three phases. First, the existing battery thermal conditioning system will have its performance evaluated using high resolution electrical and thermal measurement techniques to create a well-defined and comprehensive picture of thermal response. Second, new forced-air and/or phase-change-material systems will be designed to address non-uniformity (e.g. hot-spots) and insure overall cooling rate is met. Finally, the new design will be trialed in a system to demonstrate its performance in the application. It is expected that this NSERC Engage Project will lead to a long-term academic-industrial relationship given the massively expanding energy storage market and product evolution. Two new HQP will be trained and this project supports the Canadian Government's initiatives for electric vehicles and fast charging.

新的和拟议中的电动汽车（EV）将以非常高的速度快速充电，同时在长途旅行中短暂停止。这给现有的配电网带来了巨大的压力。充电站不需要增加新的“电线杆”，而是可以通过增加固定电池来实现“电池支持”。 eCamion是加拿大电池储能系统的开发商和制造商。他们已经在整个安大略部署了这些系统，目前正在签订合同，提供新的更高的电力系统。eCamion的市场正在向更快的充电速率发展，他们目前的电池冷却系统不再足以在高速率操作期间保持均匀的冷却温度。 需要新的热管理技术来保持这种固定电池冷却，同时以非常高的速率（4C+）操作。虽然电动汽车可能需要几个小时才能放电，但充电站的电池支持存储必须在几分钟内放电，并且可能同时对多个电动汽车放电。 在这个研究项目中，将探索新的和新颖的电池热调节系统，以确定它们的性能增强，同时保持在充电站的原始占地面积内。该项目分三个阶段。首先，现有的电池热调节系统将使用高分辨率的电气和热测量技术对其性能进行评估，以创建一个明确和全面的热响应图。第二，新的强制通风和/或相变材料系统将被设计为解决不均匀性（例如热点），并确保满足总体冷却速率。最后，新的设计将在一个系统中进行试验，以证明其在应用中的性能。 预计这个NSERC参与项目将导致长期的学术-工业关系，因为储能市场和产品的发展正在大规模扩大。将培训两名新的HQP，该项目支持加拿大政府的电动汽车和快速充电倡议。