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A pressure dependent Schrodinger equation is used to find the conditions that lead to superconductivity. When no pressure is exerted, the superconductor resistance vanishes beyond a critical temperature related to the repulsive force potential of the electron gass, where one assuming the electron total energy to be thermal, where applying mechanical pressure destroys Sc when it exceeds a certain critical value. However when the electron total energy is an assumed to be that of the free electron model and that the pressure is thermal and mechanical, the situation is different. The quantum expression for resistance shows that the increase of mechanical pressure increases the critical temperature. Such phenomenon is observed in high temperature cupper group.

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Lithium sulfur batteries with high theoretical energy density are promising candidate as next-generation energy storage system. However, practical strategies for releasing the true potential of sulfur cathode are still needed. Therefore, in this work, the NiCo2O4 with hybrid nanostructure is manufactured in a simple atmospheric and water-based method. The surface area of the mesoporous NiCo2O4 is determined to be about 59.99 m2g−1. The electrode with NiCo2O4 exhibits a high initial capacity of 1399.8 mAh g−1 at the current density of 0.1 C. These results indicate that the electrode material has enormous potential as high-performance cathode materials.