Hollow porous LiMn₂O₄ microcubes are prepared via a facile template route involving annealing MnCO₃ microcubes, followed by treatment with diluted acid, chemical lithiation with LiI, and calcination under vacuum at 350 °C. These hollow porous nanomaterials with large void volume and high surface area show improved rate capability and excellent cycle life.

中文翻译：

---

空心多孔LiMn2O4微立方​​作为可充电锂电池正极，具有较高的电化学性能

空心多孔LiMn ₂ O ₄微立方体是通过一种简单的模板路线制备的，该方法包括对MnCO ₃微立方体进行退火，然后用稀酸处理，LiI化学锂化以及在350°C的真空下煅烧。这些具有大空隙体积和高表面积的中空多孔纳米材料显示出提高的速率能力和优异的循环寿命。