Si is considered one of the most promising anodes for lithium-ion batteries due to its ultrahigh theoretical capacity and abundant resource reserves. However, the poor conductivity and large volume expansion of silicon-based anode materials seriously affect their charge−discharge efficiency and cycling stability. In this study, the dispersion of Si nanoparticles and graphene oxide (GO) is atomized into small droplets, followed by electrostatic self-assembly, spray-drying, and high-temperature annealing to obtain the pomegranate-like Si/rGO composite (ES-Si/rGO) with a concentrated size of ∼2 μm. It is noteworthy that the preparation is under mild conditions and easy to scale up. As a result, ES-Si/rGO shows a high rate performance at wide current densities and maintains a reversible capacity of 969.3 mAh g −1 after 200 cycles at 500 mA g −1 . The compact rGO improves the electrical conductivity and slows down the structure deterioration. This work is of great potential toward the scalable preparation of silicon-based anodes.

Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.004 Å; R factor = 0.057; wR factor = 0.176; data-to-parameter ratio = 13.0.The title molecule, C 12 H 7 N 3 O, is almost planar, with an r.m.s. deviation of 0.026 Å . No directional interactions could be detected in the crystal. Related literature ExperimentalCrystal data

In the title compound, C8H7N3O2S, the dihedral angle between the thia­zol and isoxazole rings is 34.08 (13)°. In the crystal, the mol­ecules are linked by pairs of N—H⋯N hydrogen bonds, forming inversion dimers, and C—H⋯O inter­actions, resulting in chains along the b-axis direction.