High-voltage electrochemical impedance spectroscopy

电化学阻抗谱(EIS)是一种强大的技术，它能够表征和 电池和燃料电池等电化学电池的诊断。有可用的EIS系统 商业上用于单个电池的阻抗测量，它们通常可以通过附加的 用于测量堆叠中最多32个单元组的阻抗的硬件。然而，对于许多商业和 工业应用，如汽车应用，电堆可以由数百个串联的电池组成。一个 EIS系统，能够测量和表征单个电池和组的阻抗 在如此大的堆叠中大量的电池将在这些设备的开发中有用。在这 研究，我们将与绿光创新合作开发他们的技术，用于EIS测量 很大一堆。该项目的目标是研究和开发可靠的和商业上可行的 大型烟囱的EIS测量技术，并开发了一个概念验证原型系统， 允许在一大堆电池中测试不同数量的电池。

Electrochemical impedance spectroscopy (EIS) is a powerful technique that enables characterization and diagnostics of electrochemical cells such as batteries and fuel cells. There are EIS systems available commercially for impedance measurement of single cells, and they can be typically extended with additional hardware to measure the impedance of a group of up to 32 cells in a stack. However, for many commercial and industrial applications, such as automotive applications, the stacks can consist of hundreds of cells in series. An EIS system that is capable of measuring and characterizing the impedance of individual cells as well as groups of large number of cells in such a large stack would be useful in the development of these devices. In this research, we will work with Greenlight Innovation in developing their technology for EIS measurement of large stacks. The objectives of this project are to investigate and develop reliable and commercially viable techniques for EIS measurement of large stacks, and to develop a proof-of-concept prototype system that allows testing different number of cells within a large stack of cells.