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DOI: 10.3791/50594-v
Marca M. Doeff1, Guoying Chen1, Jordi Cabana1,2, Thomas J. Richardson1, Apurva Mehta3, Mona Shirpour1, Hugues Duncan1, Chunjoong Kim1, Kinson C. Kam4, Thomas Conry5
1Environmental Energy Technologies Division,Lawrence Berkeley National Laboratory, 2Department of Chemistry,University of Illinois at Chicago, 3Stanford Synchrotron Radiation Lightsource, 4Haldor Topsøe A/S, 5PolyPlus Battery Company
Please note that some of the translations on this page are AI generated. Click here for the English version.
我们描述了使用同步辐射X射线吸收光谱(XAS)和X-射线衍射(XRD)技术,以探测在锂离子和钠离子电池的电极材料的嵌入/脱嵌过程的细节。无论是在就地和移地实验来了解有关设备的运行结构行为
以下实验的总体目标是研究电极的结构变化,实时在电池中经历循环。这是通过组装经过修改的测试单元来实现的,以便在设备进行充电和放电时,可以在同步辐射设施的光束线中研究电极过程。第二步,在光束线上的测试单元上收集数据,作为时间和工作条件的函数。
接下来,对数据进行处理和分析,以观察作为电荷状态函数发生的结构变化。获得的结果提供了对电极功能的见解,包括基于分解数据和解释的相变和降解过程。与现有的传统方法(如 X 射线粉末衍射)相比,该技术的主要优点是信号强度更高,采集时间更快,可以快速采集数据。
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