Non-destructive Evaluation of Li-ion Battery

目前，电池制造过程并不是一个闭环过程。配置参数是预先设定好的，在制造过程中是无法更改的，只有在制造过程结束，产品样品下线测试后才能知道产品的好坏。这导致了高水平的浪费，主要是由于缺乏用于流程配置优化的实时评估和反馈系统。因此，对濒死体验的发展有着迫切的需求。超声波在确定多层电极片的关键性能（如孔隙度和弯曲度）方面已经证明了有前途的能力。

Currently, battery manufacturing processes are not a closed-loop process. The configuration parameters are pre-set, and cannot be changed during manufacturing, and one only knows whether the product is good or not until after the manufacturing process is finished and the product sample is tested offline. This results in a high level of wastage mainly due to the lack of real-time evaluation and feedback system for process configuration optimization. Therefore, there are urgent demands for NDE developments. And ultrasound has demonstrated promising capabilities in determining key performances of a multiplayer electrode sheet, such as porosity and tortuosity.