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During the process of lithium-ion intercalation and de-intercalation, the electrode undergoes huge volumetric change. Diffusion-induced stress (DIS) has been investigated in solid and hollow spherical electrode. In this work, a new coupled model is established in a hollow spherical electrode to analyze the DIS with electrochemical reaction. The result shows that electrochemical reaction has a significant...
The lithiation mechanisms that occur in silicon nanotube lithium-ion battery electrodes are not well understood at the atomic level. In this study, first-principles calculations were carried out to investigate the mechanism responsible for the insertion of lithium in armchair and zigzag nanotubes. The size dependence of the formation energy and the Young’s modulus was investigated for the placement...
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