fig2
![Construction and ultrasonic inspection of the high-capacity Li-ion battery based on the MnO<sub>2</sub> decorated by Au nanoparticles anode](https://image.oaes.cc/9f7df3e1-f1ff-4fa4-8a79-9aab096130e2/microstructures4064.fig.2.jpg)
Figure 2. XPS spectra for Au 4f (A), Mn 2p (B), and O 1s (C) in MnO2-Au materials.
Figure 2. XPS spectra for Au 4f (A), Mn 2p (B), and O 1s (C) in MnO2-Au materials.
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