A sandwich shelled hollow TiO₂@Co₃O₄@Co₃O₄/C composite is synthesized by consecutive coating of Co₃O₄ nanosheets and TiO₂ particles on Co₃O₄/C hollow spheres. The composite delivers an excellent lithium storage performance, maintaining 1081.78 mA h g⁻¹ after 100 cycles at 0.2 A g⁻¹ and 772.23 mA h g⁻¹ after 300 cycles at 1 A g⁻¹, due to its superior structure combining the advantages of each component with favorable electron-transfer, Li⁺-diffusion properties, and distinguished stability.

中文翻译：

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夹心带壳的TiO2 @ Co3O4 @ Co3O4 / C空心球作为锂离子电池的负极材料

通过在Co ₃ O ₄ / C空心球上连续涂覆Co ₃ O ₄纳米片和TiO ₂颗粒，合成了三明治壳空心TiO ₂ @Co ₃ O ₄ @Co ₃ O ₄ / C复合材料。复合提供的优异的锂存储性能，保持1081.78毫安汞柱^-1 0.2 A G 100次循环后^-1和772.23毫安汞柱^-1后1个A G 300次循环^-1，由于其组合每个的优点上级结构电子传递有利的组分Li ⁺扩散特性和出色的稳定性。