产品名称：电池包热失控开发流程 

推荐企业：FEV Europe GmbH 

电池包热失控开发流程 

技术特点

随着新国标GB 38010-2020的出台，配备动力电池的汽车，在电池发生热失控事件的5分钟内，不能在乘员座舱内造成危险。预计其它国家在未来也将调整他们的安全需求和中国的新规范对应起来。考虑到目前锂离子电池的高能量密度和高度集成的电池组设计，该课题将成为电动汽车电池发展的一个重要里程碑。在设计冻结后的很长时间才发现失效，这一点尤其关键。在这个阶段，进行多次迭代循环的电池包级别的滥用测试将会消耗时间和资源，对整个项目时间进度和预算都是一个很严重的威胁。可能需要对设计进行重大修改，并且必须降低或放弃电池能量，重量或车辆续航里程等重要目标。这就说明了在项目早期阶段借助工具来帮助工程师或设计师实现电池安全需求的必要性。FEV开发并结合了多物理场和流体动力模型，通过显著减少测 试工作，有助于减低成本和加速锂电池热失控防护的开发。 

市场表现 

在当前和未来电动汽车里，为满足乘客安全的高度市场需求 

With the introduction of the new Chinese safety standard GB 38010-2020, vehicles equipped with a secondary battery will be required to not cause danger in the passenger compartment within 5 minutes after a thermal runaway event inside the battery has been detected. It is expected that other countries will adapt their safety requirements to this new demanding Chinese norm in the future. Given the high energy density of modern lithium ion cells on the one hand and highly integrated pack designs on the other hand this topic can become a critical milestone in battery development for electric vehicles. This is particularly valid if failures are discovered long after design freeze. At this stage, carrying out abuse tests on battery level with possibly multiple iteration loops will become resource and time consuming and a serious threat to any time schedule and project budget. Major design changes might have to be implemented and important targets such as battery energy, weight or vehicle range must be softened or abandoned. This illustrates the need for tools which help engineers and designers to meet safety requirements of the battery in an early project phase. FEV has developed and combined multiphysics and fluid dynamic models which help to reduce costs and accelerate development time of thermal propagation proof lithium ion batteries by significant reduction of testing efforts. 

Highly market relevant for passenger safety in current and future battery electric vehicles