We report a cost-effective way to synthesize the lithium silicate nano-glass ceramics for high-performance Li-ion batteries (LIBs). By proper heat treatment on the precursor glass, we succeeded in preparing Li₂TiSiO₅ glass ceramics, based on which the anode was fabricated. This type of anode exhibits superior electrochemical performances, that is, a specific capacity of about 180 mA h g^–1 until 5000 cycles at 5 A g^–1. This high cycling stability is attributed to the synergistic effect of both the open network in the glass matrix and the crack-type channels induced by Li₂TiSiO₅ nanocrystals in the glass matrix. The open network could withstand the volume change and the stress caused by Li⁺ insertion/extraction, while the nanocrystals could provide efficient pathways for fast ion delivery and electron transport. The present work has a promising potential to develop high-performance electrode materials for LIBs.

中文翻译：

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Li ₂ TiSiO ₅玻璃陶瓷作为高性能锂离子电池负极材料

我们报告了一种用于高性能锂离子电池（LIB）的合成硅酸锂纳米玻璃陶瓷的经济有效的方法。通过对前体玻璃进行适当的热处理，我们成功地制备了以阳极为基础的Li ₂ TiSiO ₅玻璃陶瓷。这种类型的阳极表现出优异的电化学性能，也就是说，一个特定的容量大约180毫安汞柱^-1直到在5 A G 5000次循环^-1。这种高的循环稳定性归因于玻璃基质中的开放网络和Li ₂ TiSiO ₅诱导的裂纹型通道的协同效应。玻璃基质中的纳米晶体。开放的网络可以承受体积变化和Li ^+的插入/抽出所引起的应力，而纳米晶体可以为快速的离子传递和电子传输提供有效的途径。目前的工作在开发用于LIB的高性能电极材料方面具有广阔的前景。