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FIGURE 3

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Advanced analytical electron microscopy for lithium-ion batteries

Danna Qian, Cheng Ma, Karren L More, Ying Shirley Meng and Miaofang Chi

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Figure 3.

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(a) Top: schematic of the probable configuration of FeLi with a higher Fe oxidation state in LiFePO4. Bottom: (left) EELS data of FeLi and the Fe in bulk. (right) Compared Fe L3/L2 ratios with different iron compounds as the references.35 (b) ABF image of half-charged LiFePO4 showing the Li staging.70 (c) BF and (d) false-color elemental map of the charged FeF2 with Fe (green) and LiF (red), showing an interconnected network.42 All figures have been reproduced with permission.

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