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Note: Sample chamber for in situ x-ray absorption spectroscopy studies of battery materials

机译:注意:用于电池材料的原位X射线吸收光谱研究的样品室

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In situ x-ray absorption spectroscopy (XAS) provides element-specific characterization of both crystalline and amorphous phases and enables direct correlations between electrochemical performance and structural characteristics of cathode and anode materials. In situ XAS measurements are very demanding to the design of the experimental setup. We have developed a sample chamber that provides electrical connectivity and inert atmosphere for operating electrochemical cells and also accounts for x-ray interactions with the chamber and cell materials. The design of the sample chamber for in situ measurements is presented along with example XAS spectra from anode materials in operating pouch cells at the Zn and Sn K-edges measured in fluorescence and transmission modes, respectively.
机译:原位X射线吸收光谱(XAS)提供了结晶相和非晶相的特定元素表征,并实现了电化学性能与阴极和阳极材料的结构特征之间的直接关联。原位XAS测量对实验装置的设计要求很高。我们已经开发了一个样品室,该样品室为操作电化学电池提供了电连接性和惰性气氛,并且还考虑了与该室和电池材料之间的X射线相互作用。给出了用于原位测量的样品室的设计,以及在荧光和透射模式下分别测量的工作袋单元中Zn和Sn K边缘处阳极袋中阳极材料的示例XAS光谱。

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