Analysis of Li-Ion Battery Materials by Electron Energy Loss Spectroscopy
نویسنده
چکیده
Electron Energy Loss Spectroscopy (EELS) is a powerful technique for studying Li-Ion battery materials as Li distribution in the electrode material can be mapped with nanometer scale resolution. In addition, valence state of the transition metal in the positive electrode and charge transfer during lithiation and delithiation processes can be analyzed by measuring the relative intensity of the transition metal L3 and L2 lines. The valence state measurement of transition elements by EELS technique is reviewed in this paper and recent results obtained on LiMn1.5Ni0.5O4 and Li-FeOF/C nanocomposite electrodes are presented to illustrate the potential benefits of EELS technique in studies of Li-Ion battery materials.
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